Running-cycling exercise device

Description

1 / 48 RUNNING-CYCLING EXERCISE DEVICE CROSS-REFERENCE ON REQUEST RELATED

[0001] This application claims the benefit of and priority to Provisional Patent Application No. U.S. 63 / 454,128 filed March 23, 2023, entitled “Run Cycle Exercise Device,” the contents and application of which are incorporated herein by reference in their entirety. BACKGROUND OF THE INVENTION

[0002] The present invention relates to exercise devices and, in particular, hybrid running devices.

[0003] Running and cycling are two forms of cardiovascular exercise that many people participate in. Fitness exercise devices, equipment, machines, etc. are well known and include bicycles, upright bicycles, recumbent bicycles, hybrid bicycles, climbing machines, cross-country ski devices, ellipticals, motion hybrids, rowing machines, stair climbers, stepping machines, strides, treadmills, etc. Some of these devices attempt to mimic running movements and some claim to be substitutes for running, etc., but they fall short of the natural movement, forces, and force patterns that a runner exerts and experiences against themselves that are similar to real running.

[0004] The effects of running forces that are observed by the eyes are displayed in the above-ground movements of the runner. The biomechanics and speed at which the runner moves along the ground can be observed, but the forces that are generated downwards on and through the ground are not visible to the naked eye. These forces are downward and curvilinear in nature on and against the ground. A runner directs their knees and thighs upward and forward, and then downward, creating momentum against the ground. In the present invention, a person can actually perform in a manner similar to running; this allows a user to direct their knees and thighs upward and forward, and then downward, creating momentum against resistance. These forces also... Petition 870250085852, dated 09 / 23 / 2025, page 9 / 522 2 / 48 translate downwards and in a curvilinear fashion, as can be physically seen when a user uses this device through a wide and variable range of movement paths.

[0005] The devices and machines mentioned above, in addition to the treadmill, have fixed, semi-fixed, and limited, predetermined movement patterns. These devices with left and right-side linkage systems are fixed relative to each other and work together, and the second linkage member has no independence from the others. Several of these fixed movement patterns of exercise devices can be adjusted mechanically, manually, and / or electronically through controls, such as varying the angle of an aspect, but still moving in predetermined movement patterns. They do not adequately allow for the variable heights, leg lengths, steps, and / or strides of each user. They also do not allow for adequate variation in step and stride lengths based on speed and / or personal preference of the user during exercise, based on the user's natural effort and speed.The movements permitted for a user tend to have smaller and more restricted circumferences that restrict and narrow the range of a user's movement compared to the range and movement of natural running. Some examples of devices that do not fall under the present invention are bicycle-type devices such as US Patent No. 7,140,626. Elliptical devices such as US Patent No. 11,000,730 and 9,468,798. A hybrid device called a pendulum as US Patent No. 7,780,577. A stepping motion device US Patent No. 10,207,147. Other devices that have only a limited circle of foot support, movement displacement trajectories and are intended only for cycling and do not provide a natural running motion, are crank arm devices such as US Patent No. 7,607,370 and the shortened crank arm of Hase Bikes; https: / / hasebikes.com / media / hase-bikes-catalog2022.pdf Page #80.Each of these references is incorporated herein by way of reference for all that is contained therein, including the following: Petition 870250085852, dated 09 / 23 / 2025, p. 10 / 522 3 / 48 reference citations contained therein.

[0006] The present invention overcomes these limitations by allowing a user to utilize a much more natural running motion. The range is wide and tends to accommodate a comfortable wide range and circumference that is similar to natural running. The user can direct their knees upward and forward and can move in a faster stride that can lengthen their stride motion pattern. The motion patterns in the present invention have a maximum parameter motion pattern, but allow the user to freely and naturally vary their own motion pattern within the maximum permitted parameter only by checking their own strength during exercise within a wide variable range within the full outer limit range that the invention allows. The motion pattern that the user verifies is not predetermined, but a result of an action based on the user's effort, speed, and technique while running-cycling, exercising.

[0007] The devices and machines mentioned, in addition to the conveyor belt, also have foot supports that are fixed in their respective places and are configured with a fixed width between the foot supports.

[0008] The present invention overcomes these limitations by allowing a user to move their feet connected to the foot supports freely inward and outward during exercise, thus varying their stride width. This allows for a much more natural and individual stride width during running-cycling, just as it happens when walking and running.

[0009] Some elliptical and hybrid devices give the illusion of running based on visual movement, but do not emulate the forces of running. Some elliptical devices are more similar to a form of cross-country skiing where a person exerts force that tends to be linear. While other elliptical devices have cross-country skiing similarities and a half-step motion. In addition, this type of device reduces the effort required by the user to lift their own legs during exercise. As a Petition 870250085852, dated 09 / 23 / 2025, page 11 / 522 4 / 48 of the leg exerts downward force, which causes the device to lift the opposite leg upward.

[0010] Steppers typically have components that allow the user to move their legs, feet in a very limited, defined pattern of motion. They tend to move in a straight line angled up and down.

[0011] Stair simulators are moving stairs and may be called stair treadmills. They incorporate steps that mimic a set of stairs that move and rotate at an angle of inclination. Similar to a treadmill, but with steps, stairs. A user steps up a step and lifts their body, extending their leg down against the step as their foot moves at a fixed angle, which is then reciprocated by the other leg with the same movement on the next step. The movement is fixed.

[0012] Bicycles; stationary bicycles configured on a frame and / or bicycles configured on a frame fixed to wheels. Bicycles provide aerobic and / or anaerobic workouts that can strengthen and tone the muscles of the legs and glutes. Bicycles provide a circular motion for a user's feet for propulsion which is widely accepted and quite comfortable, but predetermined and fixed in distance relative to the geometric axis of the connection between the right and left crank arms. Furthermore, this type of device reduces the effort required by the user to lift their own legs during exercise if the user is not using shoe clips, toe clips, etc. to connect the user's feet to the footrests. As one leg exerts downward effort, this causes the device to lift the opposite leg upward.

[0013] The width between a user's feet while cycling is different from walking and running. Pure pedaling has a typical Q-factor of 150 mm to 170 mm. These exercise devices mentioned are restrictive and have limited range and flexibility of movement. Walking and running are substantially smaller in width than the typical Q-factor for cycling. The stride width or step width for adults is typically between 25 mm and 77 mm. Petition 870250085852, dated 09 / 23 / 2025, page 12 / 522 5 / 48

[0014] Treadmills allow for the freedom of natural running biomechanics, natural stride lengths, stride widths, and natural steps, unlike other exercise devices. Additionally, treadmills may have a shock-absorbing padded surface, which can reduce impact, but not eliminate the impacts associated with running on the runner's body when running on other types of surfaces such as floors, pavement, etc. Bicycles are considered to have little or no impact.

[0015] Treadmills cannot significantly reduce impact during running, and other exercise devices cannot provide the comfort and effects that come from the natural, free movement of running.

[0016] The patents cover a wide range of inventions for cycling, crank arms, ellipticals, stepping and combinations thereof, but none teaches or anticipates, independently or in combination, the present invention.

[0017] The present invention is a unique inventive synergistic configuration of components that provides a novel exercise device, the “Running-Cycling”. Summary of the Invention

[0018] The present invention relates to an exercise device.

[0019] Modalities of the present invention facilitate a more natural running and rotational cycling motion that allows a user, individually under their own autonomous physical biomechanical effort and real-time power, to modify variations in their running and stride motion while running or cycling. This allows the user the freedom of flexible and variable movements in real time, as well as variable steps, stride lengths, and stride widths initiated by the user during exercise. The user can modify their movement automatically and individually, freely, within an extended maximum perimeter that allows for a variable customized displacement trajectory motion, facilitating a running and curvilinear motion called run-cycling.

[0020] Some embodiments of the present invention allow, encourage and Petition 870250085852, dated 09 / 23 / 2025, page 13 / 522 6 / 48 encourages the user to direct their knees upward and forward, improving healthy running biomechanics. This reduces the impact, if any, on the user's body. The impact is similar to cycling.

[0021] In one embodiment, the exercise device of the present invention may include / or consist of a frame that can be placed on a support surface, floor, ground, etc. The components of the exercise device, for example, the running-cycling exercise device, are fixed and connected to the frame. The components may include or consist of singular and / or plural, in combination(s), but not limited to handlebar(s), upper trunk support, connecting members such as connecting tubes, crank arm(s), crank disc(s) and crank pulley(s), also cantilever configuration of connecting members, connecting fasteners, crank fastener(s), connection(s), one-way clutch device(s), friction reduction device(s), bearing(s), angular load device(s), radial load device(s), axial load device(s), foot support(s), rotational foot support(s),Foot support(s) with lateral or horizontal movement, foot support axle(s), pedal(s), pedaling mechanism, a geometric axle, geometric axle(s), drive shaft, a crankshaft, bottom support(s), sprocket(s), gear(s), ring wheel(s), pulley(s), pulley wheel(s), flywheel(s), wheel(s), which may be used with direct gear(s), drive gear(s), chain(s), belt(s), actuator(s), etc. resistance device(s), flywheel(s), weighted flywheel(s), braking system(s), electromagnetic system(s), wheel(s), etc. device(s) for adjusting the resistance, tension within and / or against the pedaling and rotation mechanism. In addition, the exercise device may also have a seat and / or handle(s). The exercise device can be a stationary exercise device.

[0022] The first set of connecting member(s) as used in this document may include crank arm(s), crank disc(s) and crank pulley(s) and may all be used interchangeably. The crank disc Petition 870250085852, dated 09 / 23 / 2025, page 14 / 522 7 / 48 can be configured to serve as a first crank arm. The crank disc can also be configured to serve as a crank pulley which is used in the drive system and also configured to serve as a first crank arm also known as a pulley wheel.

[0023] In various modalities, the user would engage the exercise device by placing, incorporating, and / or securing their feet with the foot supports. The foot supports may include / or consist of pedals, pedals with straps, toe clips, etc., and / or shoe attachment, connection for foot insertion and incorporation. Furthermore, the foot supports may be incorporated into a foot support axis. The foot supports may rotate, for example, around the foot support axis. Additionally, the foot supports may also be configured to move laterally, i.e., horizontally, where the lateral direction may be parallel to an axial direction defined by the foot support axis and / or the geometric axis, for example, the geometric axis. Both these aspects of rotation and lateral movement may be performed simultaneously while the user is exercising, running, or cycling.The user initiates the device's operation by performing a running-cycling motion with their legs to generate rotation of the drive shaft.

[0024] One end of the first connecting member, such as a crank arm, is typically fixed to a geometric shaft, such as a shaft-type geometric shaft. The shaft-type geometric shaft may be incorporated into a drive system. The drive system may have resistance against it. The exercise device may comprise a resistance device. For example, for a stationary exercise device such as, but not limited to; stationary bicycles, steppers, elliptical devices, elliptical-type devices, etc. A resistance device may include a wide range of applications such as electromagnets, eddy current systems, generators, magnets, alternators, brakes, flywheels, friction, pads, belts, fans, etc. In another example of an exercise device, such as an outdoor bicycle with Petition 870250085852, dated 09 / 23 / 2025, page 15 / 522 8 / 48 wheel(s), resistance can be provided by moving along a surface, such as the ground, based on gravity, air resistance, and the speed at which the user, practitioner, positions themselves and performs the movement.

[0025] These resistance exercise devices typically incorporate a shaft, crankshaft embedded in a bottom support, which turns a drive system, which may include a multitude of component(s) as mentioned throughout this document, flywheel, generator, magnet, etc. by setting up a direct drive, gear, belt or chain, etc.

[0026] Resistance can be controlled manually, mechanically and / or electronically by the user. Mechanically, this may include, but is not limited to, the following: buttons, switches, pull devices, etc. Electronically, this may include, but is not limited to, the following: electrical controls, computer(s), internet, Wi-Fi, mobile phone, etc., directly or remotely. Programs can be manually operated and / or predetermined and / or designed and manually and / or electronically operated.

[0027] Additional components and / or features include, but are not limited to, the following: Computer controlled / Electronics / WiFi / Multi-user WiFi link(s) / Real-time / Group / Classes / Pre-programmed programs / Programs that include a user weight and the percentage of the degree, such as the slope and / or gradient of the terrain, surface that is in the program / Real-world simulation / Virtual world animation / All currently available interactions.

[0028] Actuator(s) can also be used to change the orientation, degree and angle(s) of the frame relative to the ground.

[0029] In one embodiment of the present invention, the exercise device, for example, a running-cycling device, has a double set of connecting members linked together that form and comprise a left and right-sided connecting system application. The first set of connecting members can be connected to a shaft and / or a geometric axis fixed to a frame, for example, the frame mentioned above. The first set of Petition 870250085852, dated 09 / 23 / 2025, p. 16 / 522 9 / 48 connecting members, for example, the first set of first connecting members, are rotational about this geometric axis in the frame. The second set of connecting members, for example, the second set of second connecting members, may be connected to the first set of connecting members, and may be located distally relative to the geometric axis in the frame to which the first set of connecting members is connected. Distally located may refer to located at a distance measured in the radial direction from the geometric axis of rotation. Distal location may be equated to radial and / or longitudinal location in the context of this disclosure. The connection of and between the second and first connecting members of the left and right side connecting members may be positioned 180 degrees relative to each other.Thus, when the left-side connection of the second linking member with the first linking member is at 12:00, the connection of the second right-side linking member with the first linking member is at 6:00.

[0030] In another embodiment of the present invention, the exercise device, for example, a running-cycling device, has at least three sets of connecting members linked together that form and comprise a left and right side linkage system application. The first set of connecting members can be connected to a shaft and / or geometric axis fixed to a frame, for example, the frame mentioned above. The first set of connecting members is rotational about this geometric axis on the frame. The second set of connecting members connected to the first set of connecting members is in a distal, i.e., radial, longitudinal location relative to the geometric axis on the frame to which the first set of connecting members is connected. The connection of and between the second and first connecting members of the left and right side linkage members can be positioned 180 degrees relative to each other.Thus, when the left-side connection of the second linking member with the first linking member is at 12:00, the connection of the second... Petition 870250085852, dated 09 / 23 / 2025, page 17 / 522 10 / 48 right-side linking member with the first linking member is at 6:00 o'clock.

[0031] Furthermore, in the embodiment as described above, the connection of and between the second and first connecting members of the left and right-side connecting members, which may be positioned 180 degrees relative to each other, may be such that the connections on both sides function and rotate together and are fixed, while the second connecting members are free to rotate unidirectionally in one direction and swing upwards and forwards independently of each other. The first connecting members are typically connected and configured to both rotate simultaneously in the same direction. The second connecting members may be configured to rotate or pivot independently of each other. Additionally, one or both of the second connecting members may be configured to rotate or pivot independently of the corresponding first connecting member fixed to it.

[0032] A one-way mechanism can be incorporated in many different ways with, in, as part of the connection of and between the first and second sets of linking members such as crank arms. The user's weight and force placed on the foot supports, preferably pedals, can place a downward and diagonal angular load force on the one-way connection of the first and second linking members such as crank arms. In the present disclosure, the term "one-way rotatable" may refer to rotatable in only one direction, for example, clockwise or counterclockwise, while the other direction is locked. Unless otherwise stated, the term "rotable" may refer to rotatable in at least one direction or both directions.

[0033] In one embodiment of a double set of connecting members configuration, the connection that links the second and first sets of connecting members as crank arms together is to provide load support, transmit, transfer forces, assist alignment, guide, Petition 870250085852, dated 09 / 23 / 2025, page 18 / 522 11 / 48 Transfer motion, reduce friction, and facilitate movement between parts, components, etc., which in turn move relative to each other. A one-way clutch load device can be used in this configuration. Also, a one-way clutch load device and an angular load device can also be used in another configuration. These can be one or more devices configured together, incorporated into the connection that connects the second and first linkage members, such as crank arms.

[0034] In one embodiment, the second left-side linking member can be configured to rotate one-way clockwise and the second right-side linking member can be configured to rotate one-way counterclockwise. In a further embodiment, the second left-side linking member can be configured to rotate one-way counterclockwise and the second right-side linking member can be configured to rotate one-way counterclockwise. As indicated below, the clockwise and counterclockwise settings may depend on the viewpoint. The second left-side linking member and the second right-side linking member can be configured to rotate in the same direction when viewed from a fixed viewpoint.

[0035] There are multiple ways to achieve angular load support for the application of the oscillating crank arm connected to the first fixed linking member such as a crank arm, crank disc, crank pulley. Friction-reducing applications of the incorporated moving parts, Sleeves, (can be made of industrial plastics, resins, metals, etc. angular contact bearings, one or several configured, etc. to reduce friction and maintain stable movement of the oscillating crank arm while also conserving the life, service life of the parts, configured, etc.

[0036] In an embodiment of a one-way device, friction-reducing device, mechanism, bearing, etc. configured with the connection for counter Petition 870250085852, dated 09 / 23 / 2025, page 19 / 522 12 / 48 attack the downward force. In addition to fixing an angular, radial, axial, diagonal load device, friction reduction device, mechanism, bearing, etc. to neutralize diagonal and angular loads and forces configured with the connection, or having a device that incorporates all the aforementioned characteristics for a unidirectional device and a friction reduction device to neutralize angular, radial, axial, diagonal forces, etc., all as a device configured with the connection between the first and second linking members, such as the crank arm. This configuration can also provide load support for the extension and downward movement of the second crank arm and support against angular, radial, axial, and diagonal loads, as well as forces on the second crank arms.

[0037] One embodiment of the unidirectional and angular load device can be configured in several different ways. It can be a unidirectional and angular load device in a single housing unit. It can be a unidirectional device aligned close to an angular load device. It can be the device inserted within the other device. As such, and inserted one inside the other, as with a tube-type shaft allowing one component inside the tube and the other component outside the tube. They can be aligned close to each other in any order. There can be more than one of the same unidirectional and angular load device. They can also be configured in a way that they share the same housing. Connection point and component(s). Said connection, fixing may include / or consist of a unidirectional rotatable device.A rotatable device may be inserted into the connecting member as a crank arm, or a combination of both connecting members as crank arms. The connecting fixture may be inserted with the unidirectional rotatable device, and said connecting fixture may be fixed so that it passes fixed with each connecting member as a crank arm and / or adjustable along the connecting member as a crank arm. The second connecting member is usually under downward and angular loads, therefore another one may be present. Petition 870250085852, dated 09 / 23 / 2025, p. 20 / 522 13 / 48 bearing, device, etc. that is inserted to displace radial and angular loads.

[0038] In one embodiment, the internal connection between and of the first and second connecting members may include and / or consist of a rod, post, stick, shaft, etc. suitable for inserting, fixing, connecting, etc. a one-way friction-reducing clutch device on the outside of the rod, post, stick, shaft, etc.

[0039] In another embodiment, the connection may include and / or consist of a tube-type shaft. Suitable for inserting, fixing, connecting, etc., one or more friction-reducing one-way clutch devices and / or one or more angular load devices on the outside of the tube shaft and inserting, fixing, connecting another one or more friction-reducing one-way clutch devices and / or one or more angular load devices on the inside of the tube shaft. Thus, the second connecting member, for example, an oscillating crank arm, can oscillate in one direction while having improved angular, axial and radial stability and strength.

[0040] In a preferred embodiment, the oscillating crank arm that oscillates in one direction and is connected to said geometric shaft connector shaft has a perforated area as a blind thread hole configuration. The term “thread hole” used in the present disclosure may refer to a ring-shaped hole. The remaining portion that is the center of the blind thread hole may serve as a geometric rod and / or shaft that may be incorporated into a radial, axial, and angular load bearing device. Additionally, said radial, axial, and angular load bearing device may also be connected to the inner wall portion of the tube shaft connector. Furthermore, a one-way clutch device is also incorporated into and with the outer wall of the blind thread hole in the oscillating crank arm.Additionally, said one-way clutch device can also be connected outside the pipe shaft connector. Thus, in this configuration, the oscillating crank arm has the ability to oscillate. Petition 870250085852, dated 09 / 23 / 2025, page 21 / 522 14 / 48 in one direction and simultaneously have improved angular, radial and axial strength and stability.

[0041] The first and second connecting members, such as crank arms, can be fixed and connected to each other in many different ways. The connection can use a threaded device, so there is a male and female threaded application. As such, there is a threaded component that is inserted and screwed into another threaded receiving component as a male and female application. Square, hexagonal, conical, etc., inserts—different patterns for inserting, receiving, tightening, and securing each other—are provided. The fastening can also be a press fit. The first and second connecting members can be fixed to each other and capable of rotation relative to each other.By connecting and having the ability to separate the second connecting members from the first connecting members, it allows for adjustment of the positioning of the second connection point of the crank arm with the first connecting member, such as a crank arm, in relative distance to the axle connected to the frame and to the first connecting member, such as a crank arm.

[0042] In a preferred embodiment, the second linking member, for example, the second crank arm, fixed to the first linking member as a crank arm, is adjustable in distance relative to the axis in the frame to which the first linking member, as a crank arm, is also fixed.

[0043] In one embodiment, the second connecting member, for example, a second oscillating connecting member, such as a crank arm, may be made of steel, but in a preferred embodiment, the second oscillating connecting member, such as a crank, is composed of a material lighter than steel, such as aluminum, titanium, carbon fiber, composite(s), industrial resin(s), plastic(s), etc.

[0044] The second set of unidirectional oscillating crank arms connected with a fastening to the first set of connecting members, such as Petition 870250085852, dated 09 / 23 / 2025, page 22 / 522 With 15 / 48 crank arms, it can utilize a clutch, a one-way bearing, and a braking system to allow it to move in one direction, for example, rotate it in one direction. The amount of oscillation is not predetermined but determined by the user's effort, as in natural running. If the user prefers to move, for example, to run easily or at a slower pace, this is possible. If the user prefers to move quickly and at a faster pace, this is also possible. The user has the luxury and ability to naturally exert a certain amount of effort and move in a natural running style that allows the user to naturally control and vary, in real time, the movement, stride length, range of motion, and movement trajectories.

[0045] The user connected to the footrests moves the swing crank arm upward and forward, moving their legs and knees upward and forward. To allow for a more natural running motion, the swing crank arms can be made of a lighter material than steel. In addition to the footrests, the pedal configuration can also be made of a lighter material than steel. For example, when aluminum is used, it is approximately one-third the weight of standard steel. When running naturally, the user only carries the weight of their own leg and shoes, if wearing shoes; therefore, the effect of using a lighter material reduces the weight of the second swing crank arm and allows the user greater freedom to mimic a more natural running motion.

[0046] The movable linking members are propelled into motion by forces that the user applies to the linking members. For example, in one embodiment, similar to a vertical stationary bicycle device with a first set of crank arms consisting of a left and right crank arm, the present invention would have a second additional set of left and right crank arms that can oscillate in a forward direction. The user, practicing the exercise, would engage with the foot supports, Petition 870250085852, dated 09 / 23 / 2025, p. 23 / 522 16 / 48 as pedals, and these pedals allowed the user's feet and shoes to be attached to the pedals, so that not only was there a downward force placed on the pedals, but also the ability to swing the pedals freely up and forward.

[0047] The second set of connecting members can move, rotate, and oscillate in a forward direction, while the movement of the first set of connecting members rotates around the geometric axis connected to the structure. The left and right sides are mirror images of this.

[0048] In one embodiment, the foot supports can be incorporated over a foot support axis. The foot supports can rotate. In addition, the foot supports can also move laterally. Both of these aspects of rotation and lateral movement can be done simultaneously while the user is exercising, running or cycling.

[0049] A Q-factor is a lateral or horizontal distance measured from the outside of the second linkage members. A Q-factor as used in typical cycling terminology defines the lateral / or horizontal distance between the outside of one crank arm to the outside of the opposite crank arm. The Q-factor and the minimum step width between the user's feet are subject to whether or not there is structure and / or components between the footrests.

[0050] In an embodiment with the frame configured between the left and right side crank arm linkage system, the second left side linkage member can move, rotate and oscillate in a clockwise direction, and the second right side linkage member can move, rotate and oscillate in a counter-clockwise direction.

[0051] In one modality, with the components between the footrests located outside the frame, components such as linkage members, crank arms, pulley, gear, ring wheel, chain or belt, drive system, etc., limit the Q-factor inward, which determines how close the user's foot width can be during exercise based on the width of the frame and components. Between the footrests. The factor Petition 870250085852, dated 09 / 23 / 2025, page 24 / 522 17 / 48 Q can be adjusted laterally outwards and inwards, the value adjusted outwards in this setting by manual adjustment or by the user's own assessment during exercise, running or cycling.

[0052] In a preferred embodiment, the minimization and reduction of the space, also known as the Q-factor, between the footrests is achieved by using, as the first connecting members, crank discs that can also serve as a pulley, also known as a crank pulley, or sprocket, incorporated into the drive system. Thus, by using a crank pulley that also functions as the first connecting member, no additional pulley, sprocket, or gear component for the drive system is needed between the first set of connecting members. This reduction of additional component(s) of the drive system helps to reduce the space and width between the footrests, also known as the Q-factor, which helps the user to feel a more natural running and cycling motion.

[0053] In another embodiment, the frame and / or drive components can be configured without being between the left and right side linkage member system, and the second left side crank linkage member can move, rotate and oscillate in a counterclockwise direction, and the second right side linkage member can move, rotate and oscillate in a clockwise direction. By configuring the linkage system without a frame or comments between them, it is possible to obtain a comfortable and natural stride width.

[0054] In the frameless and / or componentless mode, the footrests are free to rotate and move laterally between the left and right footrest supports and the footrest axles, allowing the user to vary the stride width >0 in real time while exercising, running or cycling, or by manually pre-adjusting them before exercise, running or cycling. Its inner limit is up to the point where the footrest supports and footrest axles do not infringe on each other when passing through one another. Petition 870250085852, dated 09 / 23 / 2025, p. 25 / 522 18 / 48 during use. This mode allows for a near-zero average step width, with a stride width between the user's feet during exercise.

[0055] The frame configured with a non-centralized structure, but with a left and right frame structure, allows the mobile linkage member system with incorporated foot supports with foot support axles to vary in width with a step width > 0 during exercise. The step width SW can vary within > 0 (0 being average) and / or outside the average allowing a user to alter their step, step width, step length, stride, while running or cycling according to their intention to vary this according to their personal biomechanical preferences.

[0056] In a preferred modality, the running-cycling device has a typical drive resistance system device such as those found in a typical stationary bicycle, elliptical devices, etc.Thus, the first set of left and right connecting members, such as crank arms, are fixed with one end connected to a mechanism that is also a geometric shaft incorporated with the drive system's turning. When using connecting members, such as crank disc(s) and crank pulley(s), as the first set of connecting members, these connecting members are fixed and connected from their center to a mechanism that is also a geometric shaft incorporated with the drive system's turning.

[0057] This first set of left and right linkage members, such as crank arms or, when crank discs, crank pulleys are used, at the point of connection between the first set of left and right linkage members with the second set of left and right linkage members are fixed at 180 degrees to each other, so when one crank arm or the point of connection between the first and second linkage members is in the 12:00 position, the other is in the 6:00 position and vice versa. This pattern is fixed during a complete 360-degree rotation, as occurs with the first set of crank arms on a standard bicycle. Petition 870250085852, dated 09 / 23 / 2025, page 26 / 522 19 / 48

[0058] The hour hand of the clock is used for descriptive explanation of the positioning of the left and right crank arms or the point of connection between the first and second connecting members with relative positions to each other as follows;

[0059] For example; Positions of the first left-side crank arm and the connection point positions of the connection between and of Positions of the first right-side crank arm and the connection point positions of the connection between and from the first to the second connecting members: 12 vertical straight upwards, horizontal straight forwards, vertical straight downwards, horizontal straight backwards, first to second connecting members: vertical straight downwards, horizontal straight backwards, vertical straight upwards, horizontal straight forwards.

[0060] The second set of left and right crank arms can be connected where the pedals are typically connected to the first set of left and right crank arms of a stationary bicycle or typical bicycle. As the first linkage member crank arm and / or the connection point between the first linkage member and the second linkage member approaches the 12 o'clock position, the second crank arm connected to the first crank arm or crank disc, crank pulley can oscillate, move freely forward and upward, extending forward without resistance other than the weight of the footrest and the second crank arm itself.

[0061] The connection, pivot point of the second set of crank arms to the first set of crank arms, can be fixed or adjustable along the first crank arm in distance relative to the connection of the first set of crank arms to the geometric axis on the frame. The adjustable distance can be adjusted to accommodate different user sizes and Petition 870250085852, dated 09 / 23 / 2025, page 27 / 522 20 / 48 based on user preferences. This connection point of the first and second crank arms maintains a consistent distance from the geometric axis between the first set of crank arms and the frame as it rotates, orbits, and spins around that geometric axis with the frame.

[0062] The connection of the footrests can be fixed or adjustable along the second crank arms at a distance from the connection of the second crank arm with the first crank arm. The adjustable distance can be adjusted to accommodate different user sizes and based on user preferences. This connection point of the footrests maintains a consistent distance from the pivot point of the connection between the second and first crank arms as the second crank arm oscillates, rotates, around the pivot point of the connection of the second crank arm with the first crank arm.

[0063] The second set of crank arms can move freely, rotating unidirectionally around the pivot point of the connection between the second set and the first set of crank arms, and allows for a large variable range of motion. This facilitates a free rotational, forward, and upward extension of the footrest movement trajectory. This unidirectional forward movement allows the second set of crank arms to rotate, oscillate, move forward and cantilever, and extend the running-cycling motion as it reaches, extends upward or outward to a point where the force on the second set of crank arms is downward.At the point where the extension of the forward swing motion reaches its peak and the movement and forces are now downward, the pivot point connection of the second swinging crank arm is fixed, gripped, allowing an extension of the second crank arm and permitting variations in stride, step distance, and upward hip and knee thrust relative to the pivot point of the connection of the second and first crank arms, while the first set of crank arms simultaneously rotates downward. Thus allowing a user the freedom to... Petition 870250085852, dated 09 / 23 / 2025, page 28 / 522 21 / 48 verify a movement of the user's own strength and biomechanical form. The amount of extension is determined by the user's contribution to their own effort and physical movement, within the external limits permitted by the physical size and dimensions of the adjusted crank arms.

[0064] The amount of swing of the second crank arm is determined by the user's own effort, power, running, cycling movement technique, and effort of the knee, hip flexion, thigh and leg lift, and speed of the user's movement to extend and lengthen their stride while exercising. The complete rotation of the second crank arm can be described as swing phases, such as initial swing phase, intermediate forward and forward swing phase, peak upward swing phase, peak upward hip phase, final swing phase (downward), knee and hip extension, lower downward phase, and repetition of the initial swing phase. The second crank arm can swing forward until it reaches the point of decline.At the point of decline, the second oscillating crank arm is stopped; clutches, brakes, and locks prevent the crank arm from rotating backward, thus ensuring a fixed position of the extended crank arm, increasing and improving the user's stride length and allowing the user the freedom and individuality of a preferred stride and a variable trajectory of movement.

[0065] For example, a full swing extension of the second crank arms can occur when the left side of the second left-side pivot point connection with the first crank arm rotates and moves upward through a 12:00 position and downward through an example 10:30, and can occur when the right side of the second right-side pivot point connection with the first crank arm rotates and moves upward through a 12:00 position and downward through an example 1:30.

[0066] The user's foot movement pattern can be freely determined by the user while exercising on the device. They can simulate a fast or slower running motion. They can simulate a Petition 870250085852, dated 09 / 23 / 2025, page 29 / 522 22 / 48 high knee lift movement or a low knee lift movement. They can move their feet inward or outward, closer together or further apart. They can simulate larger or smaller steps, stride movements.

[0067] The user can take wide and long strides, or small and short ones, adjusting the distance between their feet during the exercise, all at the speed and effort that the user applies to the exercise movement, according to their personal biomechanical preferences. DETAILED DESCRIPTION OF THE DRAWINGS

[0068] FIG. 1 is a side view of a modality application.

[0069] FIG. 1A is a side view of a dual-purpose connecting member embodiment application.

[0070] FIGS. 1A1-1A7 are side views of the positions of connecting members during movement.

[0071] FIGS. 1B, 1B1-1B21 are side views of the positions of connecting members during motion, showing an external displacement path.

[0072] FIG. 1C is a side view of 3 sample displacement patterns of a swing crank arm foot support.

[0073] FIG. 1D is a side view of the variable range of motion displacement positions.

[0074] FIG. 2 is a side view of a configuration of connecting members and a drive system.

[0075] FIG. 2A is a side view of an embodiment of dual-purpose connecting members and a drive system.

[0076] FIG. 3 is a side view of an embodiment of an oscillating crank with a bore hole.

[0077] FIG. 4 is a side view of an embodiment of an oscillating crank arm with a threaded hole.

[0078] FIG. 5 is a front and rear view of a solid shaft pin fastening connector. Petition 870250085852, dated 09 / 23 / 2025, p. 30 / 522 23 / 48

[0079] FIG. 6 is a front and rear view of a pipe shaft pin fastening connector.

[0080] FIG. 7 is a front mounting view of a clutch device with a solid shaft pin fastening connector.

[0081] FIG. 7A is an example of an alternative front mounting view of a clutch device with a solid shaft pin fastening connector.

[0082] FIG. 8 is a front mounting view of a clutch device and an angular resistance load device with a pipe shaft pin fastening connector.

[0083] FIG. 8A is an example of an alternative front mounting view of a clutch device and an angular resistance load device with a tube shaft pin fastening connector.

[0084] FIG. 9 is a side view of an embodiment of a swing crank arm with a bore hole. Including mounting view of a clutch device with a rear view of a solid shaft pin fastening connector.

[0085] FIG. 10 is a side view of an embodiment of a swing crank arm with a threaded bore. Including mounting view of a clutch device and an angular resistance load device with a rear view of a pipe axle pin fastening connector.

[0086] FIG. 11 is a side view of an embodiment of an oscillating crank arm with a hole-mounted clutch device with a rear view of mounting a solid axle pin fastening connector with a side view of a fixed crank arm.

[0087] FIG. 12 is a side view of an embodiment of an oscillating crank arm with a threaded hole fitted with a clutch device and an angular load resistance device with a rear view of mounting a fastening connector assembly. Petition 870250085852, dated 09 / 23 / 2025, p. 31 / 522 24 / 48 pipe axle pin with a side view of a fixed crank arm.

[0088] FIG. 13 is a left-side view of a single-actuation mode.

[0089] FIG. 14 is a left-side assembly view of a single-drive configuration.

[0090] FIG. 15 is a left side view of an embodiment applied with a single direct main drive to an additional direct displacement drive with application of sample resistance device mounting.

[0091] FIG. 16 is a left side view of an embodiment of a double drive with an exemplary resistance device mounting application.

[0092] FIG. 17 is a left side view of an embodiment of a direct double drive for direct central drive with an exemplary resistance mounting application.

[0093] FIG. 18 is a left view of an embodiment of a direct double drive with an exemplary centralized resistance mounting application.

[0094] FIG. 19 is a left view of an embodiment of a direct double drive with an exemplary left-side resistance mounting application.

[0095] FIG. 20 is a left side view of an embodiment of a single direct drive with an example of a resistance mounting application device located behind.

[0096] FIG. 21 is a side view of an embodiment of a foot support in real-time lateral movement.

[0097] FIG. 21A is a side view of an embodiment of a laterally adjustable moving foot support. DETAILED DESCRIPTION OF PREFERRED OPTIONS

[0098] FIG. 1 schematically illustrates a preferred embodiment of Petition 870250085852, dated 09 / 23 / 2025, page 32 / 522 25 / 48 exercise device generally in 1 which includes a frame 2 and a geometric axis 11. There may be a left-side linkage system and a right-side linkage system. Said frame 2 may be situated between said linkage system configuration. One end of the first linkage member, which may be imagined as the crank arm 13A, is connected to the geometric axis 11 and the other end of the same first linkage member, for example, crank arm 13A, distal to the end connected to the geometric axis 11, is a connection 17 with a second linkage member 29, preferably designed as a second crank arm 29.For ease of description, reference is made to the first crank arm 13 and the second crank arm 29 instead of the first connecting member 13 and the second connecting member 29. A one-way device may be incorporated with the connection 17 of the second connecting member, for example, crank arm 29, and the first connecting member, for example, crank arm 13A. A support surface 35, which may be designed as the foot support 35, may preferably be fixed near or at the distal end of the second crank arm 29 of the connection 17. The second crank arm 29 oscillates, rotates in one direction, while rotation in the other direction is not typically possible. The first left-side crank arm 13AL rotates with the geometric axle shaft 11 in a counter-clockwise direction while the second left-side crank arm 29L oscillates, rotating around the left-side connection 17L in a one-way clockwise direction.The first right-side crank arm 13AR rotates clockwise with the geometric axis 11, while the second right-side crank arm 29R oscillates, rotating around the one-way pivot point 17R in a counter-clockwise direction. The first left-side crank arm 13AL and the first right-side crank arm 13AR can be connected and / or configured so that they rotate simultaneously in the same direction, preferably at the same angular velocity during an operation of the exercise device 1, i.e., exercise routine. Usually, the first one... Petition 870250085852, dated 09 / 23 / 2025, page 33 / 522 The left-side crank arm 13AL and the first right-side crank arm 13AR are both coupled to the geometric axis 11 so that they have a fixed angular distance to each other. In particular, the connection points 17L, 17R have a fixed angular distance relative to each other, preferably an angular distance of 180°. Since the left-side linkage and the right-side linkage are located on opposite sides of frame 2 and facing away from each other (see Fig. 1), the first left-side crank arm 13AL and the first right-side crank arm 13AR are said to rotate counterclockwise and clockwise, respectively. In other words, the first left-side crank arm 13AL in Fig. 1 can be considered as being located in front of an imaginary clock that defines a clockwise direction, while the first right-side crank arm 13AR in Fig. 1 is located behind said imaginary clock.When viewed from a fixed location, for example, the viewing direction of Fig. 1, both crank arms 13AR and 13AR can be considered to rotate in the same direction. Although reference is made to the first left-side crank arm 13AL and the first right-side crank arm 13AR, these features are optional and can be replaced by other members such as crank discs (see, for example, Fig. 2A) or crank pulleys which can be used alternatively. Hereafter, instead of left-side crank arm and right-side crank arm, reference is sometimes made to the more general expression first left-side linking member and first right-side linking member, respectively, or even more generally to the first linking member 13.The first linking member 13 can be a crank arm 13A, an extension, a component, a disc 13B, a part or parts that allow a distant connection from the geometric axis 11 that maintains a consistent distance from the geometric axis while it rotates, orbits, turns around the geometric axis. The linking member system can be connected via linking members 13L and 13R to the geometric axis 11 incorporated in a drive system. Petition 870250085852, dated 09 / 23 / 2025, p. 34 / 522 27 / 48 optionally including pulley, sprocket, gear, etc. 4, a belt, chain, etc. 5 and, optionally, a resistance device, 10. Said resistance device 10 may be configured and incorporate one or more parts, components, such as flywheel(s), friction pad(s), belt(s), alternator(s), magnet(s), eddy current brake(s), hybrids thereof, etc. In addition, handlebars 3 may be contemplated in the exercise device 1.

[0099] FIGS. 1A-1A7, 1B, 1B1-1B21, 1C & 1D schematically illustrate a preferred embodiment of the obtainable motion examples. These FIGS. show connecting member 13, crank arm 13A rotating counterclockwise connected to the geometric axis shaft 11. Simultaneously, the connecting member, crank arm 29, which is connected to the crank arm 13A, moves, oscillates upward and forward in a clockwise direction.

[0100] A user would engage their feet in the footrests 35. The footrests can be connected 33 to the crank arm 29 and can be adjusted in distance from the connection 17 in many positions along the crank arm 29, for example, fixable in different positions with the crank arm 29. These FIGS. show the possible movement path where the feet can move when supported in the footrests 35 connected at 33 to the crank arm 29. The actual footrests 35 are not in these FIGS., but the reference mark 33 indicates where the footrest is connected to the crank arm 29 and this shows the path that the feet of a user supported in the footrests can travel while cycling based on biomechanics and the effort and force output generated by the user.

[0101] FIGS. 1A1-1A7 show 24 drawings as static, snapshot frames in sequence with detailed descriptions of the positioning of the first configuration of 13 and the second of 29 linking members relative to each other during movement. If someone scrolls down quickly while viewing these diagram figures, it can help to display and see a movement pattern of the interconnected linking members. Petition 870250085852, dated 09 / 23 / 2025, page 35 / 522 28 / 48

[0102] FIGS. 1B, 1B1-1B21 show various drawings as static, snapshot frames in sequence of the first configuration of 13 and the second of 29 crank arms relative to each other during movement. A foot support can be connected in any of the various positions shown 33 on the second crank arm 29. In this figure, there is a pattern marked by an arrow representing a possible displacement path from where the foot support can be connected 33 to the second crank arm 29, as the configuration of the second and first crank arms moves through a complete rotation. If one scrolls down quickly while viewing these diagram figures, one can see a movement pattern along the path marked by the arrow that helps to display the attainable path of the displacement movement where the foot support can be connected (33) to the second crank arm (29).The marked arrow trajectory demonstrates a movement achievable and generated by the user's force through their feet supported on the footrests connected at (33) during the use of said running-cycling. As can be seen in the multiple axial views of the first crank arm 13, second crank arm 29 in FIGS. 1B, 1B1-1B21, the connection point 33 (i.e., 33L and 33R of Fig. 1), where the footrest axis 37 (i.e., footrest axes 37L and 37R of Fig. 1) are fixed to the second crank arm 29, describes a complex movement that differs from a circle and that can be considered similar to the shape of a comma or a Chinese yin and / or yang symbol. On the other hand, the connection point 17 (that is, 17L and 17R in Fig. 1), where the second crank arm 29 is attached to the first crank arm, describes a circular motion.

[0103] FIG. 1C shows a drawing of a complete semi-ascending forward extension of the first (13) and second (29) link member configuration and displaying achievable travel paths depending on where the foot support can be connected (33) to the second crank arm (29).

[0104] FIG. 1D shows a drawing of an area of ​​reachable routes. Petition 870250085852, dated 09 / 23 / 2025, page 36 / 522 29 / 48 depending on the input generated by the user, the force during running-cycling and the foot support being connected (33) to the second crank arm (29) and towards the distal end of the second crank arm 29 in connection with the first crank arm 13.

[0105] FIG. 2 further illustrates schematically a preferred embodiment of a foot-supported linkage system. The first set of crank arms 13AL and 13AR is situated 180 degrees relative to each other and connected to the geometric axis shaft 11 connected to a drive system component, such as a pulley or sprocket, etc. 4 located between the first set of crank arms 13AL and 13AR. The second set of crank arms 29L and 29R is connected to the first set of crank arms 13AL and 13AR at a connection point 17L and 17R which is distal to the geometric axis shaft 11 to which the first crank arms are connected. The second left crank arm 29L oscillates and rotates clockwise in one direction around the connection 17L. The second right-side crank arm 29R oscillates and rotates in a one-way counterclockwise direction around the 17R connection.As indicated above, when viewed from a single line of sight, both the second left crank arm 29L and the second right crank arm 29R can be considered to rotate or pivot in the same direction, but in the opposite direction of rotation of the first left crank arm 13AL and the first right crank arm 13AR during the operation of the exercise device 1, i.e., during an exercise routine. At least one or both of the second crank arms 29L, 29R can be rotated or pivoted independently of the rotation of the first connecting member(s) 13L, 13R, depending on user preferences and / or the exercise routine. The only restriction on the rotation of the second connecting members 29L, 29R may be rotation in one direction, as mentioned previously.

[0106] Now, reference is made to the individual elements 13, 17, 29, but it is clear that both the elements on the left and those on the right side Petition 870250085852, dated 09 / 23 / 2025, p. 37 / 522 30 / 48 can be mentioned. The connecting member 13 can be referred to as the first connecting member, while the connecting member 29 can be referred to as the second connecting member. The first connecting member 13 can be configured to rotate around said geometric axis 11, preferably 360° during one cycle of operation. The second connecting member 29 can be configured to rotate unidirectionally in one direction around said connection 17 up to 360°.However, depending on user preferences and exercise routine, while the first linking member 13 rotates a full 360° turn during a complete rotation about the geometric axis 11, for example, cycle or period, the second linking member may rotate more or less than 180°, more or less than 165°, more or less than 150°, more or less than 135°, more or less than 120° or more or less than 100° about the geometric axis connection point 17 during the complete rotation of the first linking member 13, wherein the degree of rotation may be determined from an arbitrary starting point of the second linking member 29 defining 0°. The rotational movement of the second connecting member can also be described as pivot movement relative to the connection point 17. The geometric axis 11 may be or include a shaft, sometimes called the geometric axis 11. The connection 17 may be referred to as the connecting member 17.The connecting member 17 / connection point 17 is located on the first connecting member 13 distal to the geometric axis 11, for example, on a first end portion of the first connecting member 13 opposite a second end portion of the first connecting member 13, wherein the second end portion of the first connecting member is connected to the geometric axis 11. The connecting member 17 may be arranged and / or fixed on a first end portion of the second connecting member 29 opposite a second end portion of the second connecting member 29 which may be connected to foot support shafts 37.

[0107] The unidirectional rotational device of this application may be Petition 870250085852, dated 09 / 23 / 2025, page 38 / 522 31 / 48 configured to allow rotation or pivoting of the second connecting member 29 in only one direction, that is, the opposite direction of rotation of the first connecting member 13 with respect to the geometric axis 11.

[0108] Furthermore, the foot support shafts 37L and 37R can be connected to the 33L and 33R connections with the distal 29L and 29R, that is, at a radial, longitudinal distance from the 17L and 17R connection. Said distance can be the same for both foot support shafts 37L and 37R. Incorporated and fixed to the foot support shafts 37L and 37R are the foot supports 35L and 35R which can rotate and move inward or outward, adjusting the width between the user's feet as the linking crank arm system rotates around the geometric axis 11. The rotation of foot support 35 around the foot support shaft 37 can be performed independently of the rotation or pivot movement of the second linking member 29 around the geometric axis defined by the connecting member 17 and / or independently of the rotation of the first linking member 13 around the geometric axis 11. This can be done by the user's own natural biomechanical movements during running and cycling.(See FIG. 21) The adjustable foot supports 35 can also be manually adjusted laterally to the desired width between the user's feet along the geometric axis of the foot support 37 by the user before exercise. (See FIG. 21A) The foot supports can be fixed and not move laterally independently of the scheme. The ability to move the foot support laterally during exercise is not a mandatory aspect of the invention, but an added benefit.

[0109] The embodiment in FIG. 2A indicates that the first set of connecting members, such as crank arms, are interchangeable with crank disc(s) and crank pulley(s). As shown, the first connecting members are 13CL & 13BR. A pulley wheel or sprocket, etc., which is used as a component of the drive system in FIG. 1, is classified as 4, but when there is a crank pulley that has a dual purpose, as it serves as one of the first connecting members and a pulley simultaneously in Petition 870250085852, dated 09 / 23 / 2025, p. 39 / 522 The 32 / 48 drive system is then classified as 13C and, furthermore, may be designated by an L or R, depending on the side with which it is configured. In some cases, two crank pulleys may be used and configured on the left and right sides. The second set of linkage members, such as crank arms 29L and 29R, is connected to the first set of linkage members, crank pulley 13CL and crank disc 13BR, and at a connection point 17L and 17R that is distal to the geometric axis 11 to which the first linkage members are connected. 17L and 17R are situated 180 degrees relative to each other. The second left crank arm 29L oscillates and rotates clockwise in one direction around connection 17L. The second right-side crank arm 29R oscillates and rotates in a one-way counterclockwise direction around the 17R connection.As mentioned above, the second right crank arm 29R and the second left crank arm 29L rotate in one direction and in the same direction when viewed from the same angle. They can rotate independently of each other because they are not firmly coupled to one another.

[0110] In addition, the foot support shafts 37L and 37R connected 33L and 33R with 29L and 29R distally to the 17L and 17R connection. Incorporated and fixed to the foot support shafts 37L and 37R are the foot supports 35L and 35R which can rotate and move laterally, as shown in Figs. 21 and 21a.

[0111] FIG. 3 shows the oscillation also known as the second connecting member or crank arm 29. This additionally shows a closer view of the locations where the geometric foot support shaft, shaft 37, can be connected 33. The drilled blind hole area 19 can be configured and / or incorporated with a one-way device, preferably a one-way clutch. This configuration is capable of being incorporated as shown in the connecting pin, shaft connector of FIG. 5.

[0112] AF IG. 4 in addition to FIG. 3 shows a hole area 19 in a blind thread shape. The threaded hole leaves the central portion 21 Petition 870250085852, dated 09 / 23 / 2025, page 40 / 522 33 / 48 which acts as an insert 21 within the configuration of the unidirectional device and the angular load device. This configuration is capable of being incorporated as shown in the connecting tube, tube shaft connector of FIG. 6.

[0113] FIGS. 7, 7A and 9 further expand on FIG. 3 and show a mounting configuration of the second oscillating crank arm 29 and the schematics of the one-way device 23, wherein pin 17S is configured with blind hole area 19 of the oscillating crank arm 29. A one-way device 23 or one-way rotation device 23 being fixed with and on the outer area of ​​the connector pin 17S and with the inner part of the outer wall of the perforated blind hole area 19. FIG. 11 further shows the aforementioned configured and more completely incorporated with the first crank arm 13A. In addition, FIG. 11 shows the locations where pin 17S can be connected to the holes 15 of the crank arm 13.

[0114] FIGS. 8, 8A and 10 further expand on FIG. 4 and show a mounting configuration of the second oscillating crank arm 29 and the schematics of the one-way device 23, angle load device 25, tube 17T being configured with hole 19, threaded blind hole area and central portion 21 of the oscillating crank arm 29. A one-way device 23 that is fixed with and on the outer area of ​​the connector pin 17T with the inner part of the outer wall of the blind hole area 19 drilled. An angle load device that is fixed with and on the inside of the connector tube 17T and with the outside of the threaded hole pin 21. FIG. 12 further shows the aforementioned configured and more completely incorporated with the first crank arm 13. In addition, FIG. 12 shows locations 17T that can be connected 15 to 13.

[0115] FIG. 13 further depicts the assembly as applied in FIG. 1 and shown previously in FIGS. 11 and 12 in a preferred single-drive embodiment assembly configuration with a left- and right-side configuration of the first fixed crank arms and second oscillating crank arms. The first crank arms 13R & 13L are Petition 870250085852, dated 09 / 23 / 2025, page 41 / 522 34 / 48 connected to the geometric axis, axis 11, and may be fixed and situated 180 degrees relative to each other. Configured between the first left and right crank arms there may be a component 4 of a drive system which may include or consist of a pulley, gear wheel, etc. As the first left and right crank arm assembly rotates, they drive said component 4. Connected to and along the first crank arm assembly at 15, in various permitted locations, is a connection 17T. Said connection 17T connects the first crank arm assembly to the second oscillating crank arm assembly 29. Said 15 allows the distance of the connection 17T to the second oscillating crank arm assembly to be adjustable distally, i.e., radially, longitudinally from the geometric axis 11 and in the radial, longitudinal direction along the first crank arm assembly 13.The first right-side crank arm 13R and the second oscillating crank arm 29R connected to each other with the 17T connection configuration represent the first right-side crank arm 13R moving, rotating clockwise and the second right-side oscillating crank arm 29R, as shown, moving, rotating, oscillating in a counter-clockwise direction, while the first left-side crank arm 13L and the second oscillating crank arm 29L with the 17T connection configuration represent the first left-side crank arm 13L moving, rotating counter-clockwise and the second left-side oscillating crank arm 29L, as shown, moving, rotating, oscillating in a clockwise direction. The foot supports 35, preferably pedals, are not shown in this FIG. 13, would be configured with a geometric support axis for the foot, axis 37 connected 33 with and along 29 in relation to a distance of 17T.

[0116] FIG. 14 further expands on FIG. 13, depicting an embodiment of a drive system that may be part of exercise device 1. Said drive system as shown exhibits a first drive element 4, such as a single pulley, toothed wheel, gears, Petition 870250085852, dated 09 / 23 / 2025, page 42 / 522 35 / 48 etc. 4 configured with a connecting member 5, such as a belt, chain, etc. 5, which connects the first drive element 4 with a second drive element 9, such as a pulley, sprocket, gears, etc. 9 which in turn moves, rotates, turns, etc. a resistance device component 10, such as a flywheel 10 connected to it, which may also be an eddy current brake, magnetic resistance, a wheel, etc. providing resistance.

[0117] FIG. 15 further expands on FIG. 14, but shows the addition of a second pulley, sprocket, gears, etc. additional with an offset 4B allowing an additional belt, chain, etc. 5B further configured with a pulley, sprocket, gears, etc. 9 which, in turn, moves, turns, rotates, etc. a flywheel 10, which may also be an eddy current brake, magnetic resistance, a wheel, etc.

[0118] FIG. 16 schematically shows another embodiment of exercise device 1, a running-cycling version, but without any frame and / or components between the configuration of the left and right side linkage members. This 2D frame has a left frame 2DL with a geometric axis 11DL and a right frame 2DR with a geometric axis 11DR. There is a left-side linkage system and a right-side linkage system, which may have corresponding elements. Said 2D frame with 2DL and 2DR is located outside said linkage system configuration. One end of the first crank arm 13D is connected to the geometric axis 11D and the other end of the same first crank arm 13, distal to the end connected to the geometric axis 11D, has a connection 17D with a second crank arm 29D. A one-way device can be incorporated with the 17D connection of the second crank arm 29D and the first crank arm 13D.A footrest 35 can be configured with a footrest shaft, the geometric shaft 37D can be fixed 33D and preferably be close to or at the distal end of the second crank arm 29D of the connection 17D. Footrests preferably pedals. Petition 870250085852, dated 09 / 23 / 2025, page 43 / 522 36 / 48 can rotate and can move laterally along the axis, geometric axis 37D. The second crank arm 29D oscillates, rotates in one direction. The first left-side crank arm 13ADL rotates with the geometric axis 11DL clockwise while the second left-side crank arm 29DL oscillates, rotates around the one-way pivot point 17DL counterclockwise. The first right-side crank arm 13DAR rotates with the geometric axis 11DR counterclockwise while the second right-side crank arm 29DR oscillates, rotates around the one-way left connection point 17DR clockwise.The first connecting member 13D can be a crank arm 13DA, an extension, a component, a plate 13DB, ​​a pulley 13DC, a part or parts that allow a distant connection from the geometric axis 11D that maintains a consistent distance from the geometric axis 11D while rotating, orbiting, or turning around the geometric axis 11D. The connecting member system is connected via the connecting members 13DAL and 13DAR to the geometric axis 11DL and 11DR respectively and incorporated into a drive system pulley 4DL and 4DR, resistance device, 10. The resistance device 10 of the present application can be configured and incorporate one or more parts, components, such as flywheel(s), friction pad(s), belt(s), alternator(s), magnet(s), eddy current brake(s), hybrids thereof, etc.

[0119] FIGS. 17, 18 and 19 expand upon and depict in further detail the embodiments of FIG. 16 of various drive system configurations. The said drive systems shown depict a double pulley, sprocket, gear, etc. system. As the configuration of the right and left side connecting members with shaft, geometric shaft 11DL and 11DR are engaged and rotate incorporated in a drive system of pulleys, sprockets, gears, etc. 4DL and 4DR, with belts, chains, etc. 5DL and 5DR connected, fastened with pulleys, sprockets, gears, etc. 4CL and 4CR with a rod, stick 6 that rotates, turns, turns another pulley, sprocket, Petition 870250085852, dated 09 / 23 / 2025, page 44 / 522 37 / 48 gear, etc. 4C. Said 4C is fixed with a belt, chain, gear, etc. 5B which is also fixed with a pulley, sprocket, gear, etc. 9 that rotates a resistance device 10. Said resistance device 10 can be configured and incorporate one or more parts, components, such as flywheel(s), friction pad(s), belt(s), alternator(s), magnet(s), eddy current brake(s), hybrids thereof, etc.

[0120] FIG. 18 depicts a version similar to the drive system configuration of FIG. 17, but the rod, stick 6B is directly connected to and rotates the resistance device 10.

[0121] FIG. 19 is very similar to FIG. 18, but the rod, stick 6C is situated with the resistance device 10 which is located on the left side furthest from the drive system configuration. The resistance device 10 can also be located on the right side furthest from the drive system configuration.

[0122] FIG. 20 depicts an embodiment of a drive system configured 4, 5, 9 as previously described in the front resistance device 10B. In this configuration, 10B may be a previously mentioned component, referred to as 10, or a wheel that may be situated on a surface, such as the ground. Said wheel 10B may provide movement along the ground surface.

[0123] FIG. 21 illustrates a modality of the foot supports 35 as pedals that can move laterally, that is, in the axial direction, on the geometric axis of the foot supports, axis 37 while the user is exercising. As shown, there is an inside-out range in which the foot supports can be positioned, which can be seen in the diagrams. The foot supports are configured with a sleeve that allows a geometric axis of the foot support, axis located, inserted into the sleeve of the foot supports, thus allowing real-time lateral movement by the user's natural biomechanical lateral variations and rotational movement during exercise.

[0124] FIG. 21A depicts a type of foot support in which the user Petition 870250085852, dated 09 / 23 / 2025, page 45 / 522 38 / 48 allows you to manually adjust the width of the pedals 35 laterally, moving them further apart or closer to each other in a predetermined fixed position before exercise. DEFINITIONS, DESCRIPTIONS, EXPLANATIONS, AS USED IN THIS APPLICATION, include typical definitions and, in addition, but are not limited to the following descriptions; Angular load device; (25) a device configured to support different loads, in various degrees of combination, such as axial and radial loads, a salient load. This also includes loads in an angular direction. The said load may be stationary, moving, rotating, sliding, etc., always having a radial, axial and / or angular load. Such devices may be housed, shielded, open, etc. Fixation and connection are used interchangeably. Axis; rod, pin, tube, pipe, square, tube, solid square bar, spindle, etc. Geometric axis; a central part in a structure to which other parts are connected, such as an axle. An imaginary straight line that passes through the center of a solid. An imaginary line around which a body rotates. Blind hole; refers to a hole drilled, enlarged, bored or milled to a specified depth without going all the way through to the other side of the workpiece. Connection and fastening are used interchangeably. A blind thread hole; defined as a configuration that resembles a drilled thread. A ring-shaped hole that leaves the center in place. Also known as a blind hole. Clutch; (23) a mechanism and / or configuration that grips, tightens, holds, etc. Connection and fastening are used interchangeably. Double shaft connector tube device; One rod as a shaft. Petition 870250085852, dated 09 / 23 / 2025, page 46 / 522 39 / 48 geometric shape with the inner portion perforated, like a tube. A one-way device is connected to one side of the rod, and another bearing device of the angular, radial, and axial load type can be connected to the other side of the rod. Preferably, the outer wall of the rod incorporates the one-way device, and the inner perforated side wall of the rod can incorporate a radial, axial, and angular load bearing device. Crank arm; (13, 13A, 13B, 13C) Crank, linkage, connecting member, lever, disc, pulley, extension, which is a tangible material that can allow a fastening, connection. Oscillating Crank Arm Material(s): Aluminum; In cases where clarification is necessary. Lightweight material(s); Less weight than conventional steel, such as aluminum, titanium, alloys, non-steel material(s), industrial plastics, resins, composites, carbon fibers, etc., and / or any combination of these materials. Material(s) other than steel; Industrial plastics, resins, composites, carbon fibers, etc. Steel; In cases where clarification is necessary. Titanium; In cases where clarification is required. Curvilinear; characterized by a curved line, which includes or consists of or is bounded by curved lines, a curvilinear figure, forming or moving in a curved line, formed or characterized by curved lines. Foot support and / or multiple pedal adjustment along the crank arm. A sliding device to which the pedal is connected, allowing the pedal to move along the crank arm. Preferably, by a spring-loaded pin, so as to allow convenience and ease for the user to change the distance of the footrest from the geometric axis of the connector between the swing crank arm and the arm. Petition 870250085852, dated 09 / 23 / 2025, page 47 / 522 40 / 48 fixed crank. Footrests; incorporated, fixed or with the second actual crank with a platform situated on top, on the side, in front, behind, in an opening of the second crank allowing a footrest. Frame; A frame can be configured to be supported on the ground. A frame can also be configured to be supported on one or more wheels, with the wheels also being supported on the ground. Soil; as used, it includes surfaces such as floors, slabs, etc. Lightweight one-way crank arms; Standard crank arms made of standard steel. Lightweight, one-way oscillating crank arms, made of materials that weigh less than standard steel, for example, aluminum, which is approximately one-third the weight of standard steel. The lighter, one-way crank arm allows for easier lifting of the legs, knees, hip flexion, etc., as well as extending the user's stride during running / cycling. Connecting member; (13, 13A, 13B, 13C) connecting member, crank, crank arm, lever, disc, pulley, pulley wheel, gear wheel, extension, which is a tangible material that allows a connection with another connecting member and / or geometric shaft. Unidirectional, Unidirectional device; (23) also known as the following, but not limited to the same; such as Clutch assemblies, which may include single or multiple components, unidirectional, clutch which may also be called a stop, mechanical stop clutches may include systems (bearing(s), freewheel, needle, latch, roller, stop, ratchet, pawl, cam, etc.), etc. and other clutches, such devices, bearings may be housed, shielded, open, etc. One-way angular load clutch device; a unified configuration that meets the requirements of both in Petition 870250085852, dated 09 / 23 / 2025, page 48 / 522 41 / 48 combination, as defined previously in this document: characteristics, assemblies, configurations, applications, aspects, etc. Pedal with weight attachment(s). Pedal-sized plates, inserts fixed to the underside of the pedal, can be added to increase the force and effort required to lift the user's leg, actuate the knee, and perform the hip flexion movement of the exercise. Adjustable pedal that floats inward and outward from the crank arm, allowing flexibility while the user practices running / cycling to accommodate different preferred stride widths, Q-factor. Pedal tilt with the outer part raised so that the pedal platform is higher on the outside, angled towards the inside. Q-factor; As typically used in cycling. The distance between the outside of a crank arm where the footpegs are attached to the outside of the opposite crank arm where the footpegs are attached. This is measured laterally and parallel to the geometric axis of the frame connected to the center-set frame. Q < 5; It is further defined in this document as a distance less than five inches, measured from the outside of the second crank arm, where the footrest is attached, to the outside of the opposite second crank arm, where the footrest is attached, and is measured not diagonally, but laterally and parallel to the geometric axis that is connected to the first set of connecting members and connected to the single frame and drive system components, etc., which are configured internally, between the left and right sides of the second crank arms. RUNNING CYCLING; defined as the act of movement similar to the biomechanics of running, while the user's feet are incorporated into a set of foot supports, so that the movement achieved allows variations in stride length, hip flexion, height Petition 870250085852, dated 09 / 23 / 2025, p. 49 / 522 42 / 48 knee, hip and leg extension, and foot displacement trajectory movements, while incorporating a smooth cycling feel with little or no impact. Stationary bicycle; any of several stationary exercise devices that resemble a bicycle, a stationary bicycle, also known as an exercise bike, is an indoor exercise device that is typically pedaled like a bicycle, usually having a seat, handlebars, pedals, and may have a resistance device. Step width, also known as stride width (SW): The width between a user's feet as they move their legs, in walking, running, cycling, etc. SW > 0; Pitch width (SW) as it can be used here is the distance between the inside of one footrest and the inside of the opposite footrest. As used, frame without components located anywhere between the footrests. A chain, pulley, ring wheel drive, etc. located off-center is configured to achieve an SW > 0. Stride length; is a complete gait cycle, from one heel strike to the next heel strike. It is measured from the initial contact at the start of the stance to the next initial contact of the same foot. Each stride is composed of a stance phase and a swing phase. The average stride length for normal adults is 144 m (56 in). By allowing adjustment of the second swing crank arm, the foot supports and the ability allowed the user during running-cycling to extend their stride upwards and outwards, it allows the user to achieve a natural stride length. Sub; (Additional improvements and / or independent invention(s)) aspects interused with the main invention; Oscillation; a pivoting, rotating movement. To move forward while pivoting. To move with a smooth, curved motion. Petition 870250085852, dated 09 / 23 / 2025, page 50 / 522 43 / 48 Swing phase; Initial swing phase, intermediate swing phase forward and forward, peak swing phase upward, peak hip upward stage, final swing phase (downward), knee and hip extension, lower downward phase and repetition in the initial swing phase. Unique; One Single lever; A lever, crank, fixed and connected at one end, and the lever is free to move.

[0125] As is evident from the preceding descriptive report (regardless of some items having received more or less attention), the invention is liable to be incorporated with various alterations and modifications which may differ particularly from those described in the preceding descriptive report and description. It should be understood that I wish to incorporate within the scope of the patent in the present document granted all modifications which reasonably and appropriately fall within the scope of the present contribution to the art.

[0126] Additional embodiments of the present invention are provided below. It should be noted that the numbering of the embodiments used in the following section does not necessarily have to conform to the numbering used in the previous section. Types: 1. A device comprising (1) a geometric axis (11) fixed to a frame (2) a connecting member (Group 13) connected to the geometric axis (11) the connecting member (Group 13) rotatable with the geometric axis (11) a connection (17) with connecting member (13) (Group 13A or 13B or 13C) with connecting member (29), wherein the connection (17) is located distal to the geometric axis (11) The single-hand rotatable connecting member (29) with the connection (17) with the connecting member (13) (Group 13A or 13B or 13C) and a Petition 870250085852, dated 09 / 23 / 2025, p. 51 / 522 44 / 48 surface (35) to support the body of a user connected to the connecting member (29). 2. An exercise device (1) according to embodiment 1, wherein the connection (17) additionally includes a rotational device in one direction. 3. An exercise device (1) according to embodiment 2, wherein, in the rotational device in one direction, the connection (17) additionally includes incorporation with a connecting member (13) (Group 13A or 13B or 13C). 4. An exercise device (1) according to embodiment 2 wherein, in the rotational device in one direction, the connection (17) additionally includes incorporation with a connecting member (29). 5. An exercise device (1) according to embodiment 2 in which, in the rotational device in one direction, the connection (17) is incorporated with the connecting member (13) (Group 13A or 13B or 13C) and with the connecting member (29). 6. An exercise device (1) according to embodiment 2, wherein the connection (17) which includes a rotational device in one direction additionally includes a radial angular load support device. 7. An exercise device (1) according to embodiment 3, wherein the connection (17) which includes a rotational device in one direction additionally includes a radial angular load support device. 8. An exercise device (1) according to embodiment 4, wherein the connection (17) which includes a rotational device in one direction additionally includes a radial angular load support device. 9. An exercise device (1) according to embodiment 5, wherein the connection (17) which includes a rotational device in one direction additionally includes a radial angular load support device. 10. An exercise device (1) according to embodiment 1, which additionally includes connection adjustability (17) of connecting member (29) with connecting member (13) (Group 13A or 13B or 13C Group) in Petition 870250085852, dated 09 / 23 / 2025, p. 52 / 522 45 / 48 in relation to the distance from the geometric axis (11). 11. An exercise device (1) according to embodiment 1, which additionally includes distance adjustability of a surface (35) relative to the distance of the connection (17) of the connecting member (29) with the connecting member (13) (Group 13A or 13B or 13C Group). 12. An exercise device (1) according to embodiment 1, wherein a surface (35) for supporting a user's body additionally includes a foot support (35). 13. A device according to embodiment 12, which additionally includes a rotatable foot support (35). 14. A device according to embodiment 13, which additionally includes a rotatable foot support (35) around a geometric foot support axis (37). 15. A device according to embodiment 14, which additionally includes a movable foot support (35) along the geometric axis of the foot support horizontally, laterally while the exercise device is in operation. 16. A device according to embodiment 15, which may additionally include an adjustable foot support (35) in a fixed position along the geometric axis of the foot support horizontally, laterally. 17. An exercise device (1) according to embodiment 1, which additionally includes a left and right side configuration of the geometric axis (11), of the connecting member (13) (Group 13A or 13B or 13C), of the connection (17), of the connecting member (29) and of the foot support (35). 18. An exercise device (1) according to modality 17, wherein, on the left side, the link member configuration additionally includes a one-way clockwise rotation. 19. An exercise device (1) according to embodiment 17, wherein, on the right side, the link member configuration additionally includes one-way counterclockwise rotation. Petition 870250085852, dated 09 / 23 / 2025, p. 53 / 522 46 / 48 20. An exercise device (1) according to embodiment 18, wherein the left-side connecting member (29L) rotates in one direction clockwise around the connection point (17L) with the connecting member (13L) (Group 13AL or 13BL or 13CL). 21. An exercise device (1) according to modality 19, in which the right-side connecting member (29R) rotates in a single direction counterclockwise around the connection point (17R) with the connecting member (13R) (Group 13AR or 13BR or 13CR). 22. An exercise device (1) according to modality 17, the right-side and left-side configuration additionally includes a Q factor equal to or less than 220 mm. The Q factor is the distance measured from the outside of the second connecting member (29L) at the foot support connection point to the outside of the opposite second connecting member (29R) at the foot support connection point. 23. An exercise device (1) according to modality 22, which additionally includes a variable Q factor equal to or less than 220 MM during the operation of the exercise device. 24. An exercise device (1) according to modality 1, which may additionally include a frame (2D) configured with left structuring (2DL) and right structuring (2DR). 25. An exercise device (1) according to modality 24, which may additionally include geometric axis (11L) with (2DL) and geometric axis (11R) with (2DR) a connection (17DL) of linking member (13DL GROUP 13DAL or 13DBL or 13DCL) with linking member (29DL) a connection (17DR) of linking member (13DR GROUP 13DAR or 13DBR or 13DCR) with linking member (29DR) the connection (17DL) located distal to the geometric axis (11DL) the connection (17DR) located distal to the geometric axis (11DR) The single-hand rotatable connecting member (29DL) with the connection Petition 870250085852, dated 09 / 23 / 2025, page 54 / 522 47 / 48 (17DL) with connecting member (13DL GROUP 13DAL or 13DBL or 13DCL) The one-way rotatable connecting member (29DR) with the connection (17DR) with the connecting member (13DR GROUP 13DAR or 13DBR or 13DCR) a surface (35L) to support the body of a user connected to the connecting member (29DL) distal to the connection point (17DL) a surface (35R) to support the body of a user connected to the connecting member (29DR) distal to the connection point (17DR). 26. An exercise device (1) according to embodiment 25, wherein the left-side configuration additionally includes a one-way counterclockwise rotational connection device (17DL). 27. An exercise device (1) according to embodiment 25, wherein the right-side configuration additionally includes a clockwise one-way connection device (17DR). 28. An exercise device (1) according to embodiment 24, which additionally includes unimpeded space between the right and left foot supports (35L & 35R) incorporated with the foot support shafts (37L & 37R) as they move and pass each other. The space between the inside of the right and left foot supports (35L & 35R) incorporated with the foot support shafts (37L & 37R) relative to each other may be as close as possible to allow clearance, step width > 0 between the right and left foot supports (35L & 35R) incorporated with the foot support shafts (37L & 37R) allowing free movement and rotation as they move and pass each other without any restriction, obstruction. Step width is the space, distance measured from the inside of the foot support shaft (37L) to the inside of the foot support shaft (37R). 29. An exercise device (1) according to embodiment 1, wherein the connecting member (29) is additionally made of aluminum. 30. An exercise device (1) according to modality 1, in which the Petition 870250085852, dated 09 / 23 / 2025, p. 55 / 522 48 / 48 connecting member (29) additionally includes being composed of titanium. 31. An exercise device (1) according to embodiment 1, wherein the connecting member (29) is additionally included to be composed of material(s) other than steel. 32. An exercise device (1) according to modality 1, which additionally includes a resistance device. 33. An exercise device according to modality 1, wherein the frame (2) additionally includes being configured to be supported on the ground. 34. An exercise device according to modality 24, in which the frame (2D) additionally includes being configured to be supported on the ground. 35. A device according to embodiment 1, wherein the frame (2) additionally includes being configured to be supported on one or more wheels supported on the ground. 36. A device according to embodiment 25, in which the frame (2D) additionally includes being configured to be supported on one or more wheels supported on the ground.

[0127] The modalities described above may be combined with each other and / or with the attached set of claims without departing from the scope of this application. Petition 870250085852, dated 09 / 23 / 2025, p. 56 / 522

Claims

1 / 6 CLAIMS 1. Exercise device (1) characterized by comprising: a frame (2), a geometric axis (11) fixed to the frame (2), a first connecting member (13) connected to the geometric axis (11), the first connecting member (13) being rotatable around the geometric axis (11), a second connecting member (29), a connection (17) for connecting the first connecting member (13) to the second connecting member (29), wherein the connection (17) is located distal to the geometric axis (11), wherein the second connecting member (29) is rotatable in one direction with the connection (17) with the first connecting member (13) and a surface (35) for supporting at least one part of a user's body, wherein the surface (35) is connected to the second connecting member (29), in particular connected rotationally to the second connecting member (29).

2. Exercise device (1), according to claim 1, characterized in that the connection (17) additionally includes a rotational device in one direction.

3. Exercise device (1), according to claim 2, characterized in that the rotational device in one direction additionally includes incorporation with the first connecting member (13).

4. Exercise device (1), according to claim 2 or 3, characterized in that the connection (17) of a rotational device in one direction additionally includes incorporation with the second connecting member (29).

5. Exercise device (1), according to any of the Petition 870250085852, dated 23 / 09 / 2025, page 57 / 522 2 / 6 claims 2-4, characterized in that the connection (17) of a rotational device in one direction incorporates with the connection of the first connecting member (13) and with the second connecting member (29).

6. Exercise device (1), according to any one of claims 2-5, characterized in that the connection (17) which includes a rotational device in one direction additionally includes a radial, axial, angular load-bearing device, in particular a bearing.

7. Exercise device (1), according to claim 3, characterized in that the connection (17) which includes a rotational device in one direction additionally includes a radial, axial, angular load-bearing device, in particular a bearing.

8. Exercise device (1), according to claim 4, characterized in that the connection (17) which includes a rotational device in one direction additionally includes a radial, axial, angular load-bearing device, in particular a bearing.

9. Exercise device (1), according to claim 5, characterized in that the connection (17) which includes a rotational device in one direction additionally includes a radial, axial, angular load-bearing device, in particular a bearing.

10. Exercise device (1), according to any of the preceding claims, characterized by additionally including an adjustment mechanism to control the radial, longitudinal adjustability of the connection (17) of the second connecting member (29) with the first connecting member (13) in relation to the distance from the geometric axis (11).

11. Exercise device (1), according to any of the preceding claims, characterized by additionally including an adjustment mechanism to control the radial, longitudinal distance adjustability of the surface (35) in relation to the connection distance (17) of the second connecting member (29) with the first connecting member (13).

12. Exercise device (1), according to any of the preceding claims, characterized in that the surface (35) for supporting a user's body part additionally includes a foot support (35).

13. Device according to claim 12, characterized in that the foot support is or includes a rotatable foot support (35).

14. Device according to claim 13, characterized in that the rotatable foot support (35) is rotatable around a geometric axis of foot support (37).

15. Device according to claim 14, characterized in that the foot support (35) is movable along the geometric axis of the foot support (37) horizontally and / or laterally while the exercise device is in operation.

16. Device according to claim 15, characterized in that the foot support (35) is adjustable in a fixed position along the geometric axis of the foot support (37) horizontally, in particular laterally.

17. Exercise device (1), according to any of the preceding claims, characterized by additionally including a left and right side configuration of the geometric axis (11), first connecting member (13), connection (17), second connecting member (29) and / or foot support (35).

18. Exercise device (1), according to claim 17, characterized in that the second connecting member (29L) of the left-side connecting member configuration is configured to rotate only in one direction, optionally clockwise.

19. Exercise device (1), according to claim 17, characterized in that the second connecting member (29R) of the right-hand connecting member configuration is configured to rotate only in one direction, optionally in a counterclockwise direction.

20. Exercise device (1), according to claim 18, characterized in that the second left-side connecting member Petition 870250085852, dated 23 / 09 / 2025, page 59 / 522 4 / 6 (29L) is configured to rotate in one direction in a clockwise direction around a connection point (17L) with the left-side connecting member (13L).

21. Exercise device (1), according to claim 19, characterized in that the right-side connecting member (29R) is configured to rotate in one direction in a counterclockwise direction around the connection point (17R) with the connecting member (13R).

22. Exercise device (1), according to claim 17, characterized in that the right-side and left-side configuration additionally includes a Q factor equal to or less than 220 mm, wherein the Q factor is the distance measured from the outside of the second connecting member (29L) at the foot support connection point to the outside of the opposite second connecting member (29R) at the foot support connection point.

23. Exercise device (1), according to claim 22, characterized by additionally including a variable Q factor equal to or less than 220 mm during the operation of the exercise device.

24. Exercise device (1), according to claim 1, characterized by additionally including a frame (2D) configured with a left structuring (2DL) and a right structuring (2DR).

25. Exercise device (1), according to claim 24, characterized by additionally including geometric axis (11L) with (2DL) and geometric axis (11R) with (2DR) a connection (17DL) of connecting member (13DL) with connecting member (29DL) a connection (17DR) of connecting member (13DR) with connecting member (29DR) the connection (17DL) located distal to the geometric axis (11DL) the connection (17DR) located distal to the geometric axis (11DR) The connecting member (29DL) is rotatable in one direction with the connection (17DL) with the connecting member (13DL) Petition 870250085852, dated 23 / 09 / 2025, p. 60 / 522 5 / 6 The one-way rotatable connecting member (29DR) with the connection (17DR) with the connecting member (13DR) a surface (35L) to support the body of a user connected to the connecting member (29DL) distal to the connection point (17DL) a surface (35R) to support the body of a user connected to the connecting member (29DR) distal to the connection point (17DR).

26. Exercise device (1), according to claim 25, characterized in that the left-side configuration additionally includes a one-way counterclockwise rotational connection device (17DL).

27. Exercise device (1), according to claim 25, characterized in that the right-side configuration additionally includes a one-way clockwise rotational connection device (17DR).

28. Exercise device (1), according to claim 24, characterized by additionally including unimpeded space between the right and left foot supports (35L & 35R) incorporated with the foot support shafts (37L & 37R) as they move and pass each other, wherein the space between the inside of the right and left foot supports (35L & 35R) incorporated with the foot support shafts (37L & 37R) relative to each other is as close as possible to allow clearance, step width > 0 between the right and left foot supports (35L & 35R) incorporated with the foot support shafts (37L & 37R) allowing free movement and rotation as they move and pass each other without any restriction, obstruction, wherein the step width is the space, distance measured from the inside of the foot support shaft (37L) to the inside of the foot support shaft (37R).

29. Exercise device (1), according to claim 1, characterized in that the second connecting member (29) is at least substantially composed of aluminum. Petition 870250085852, dated 23 / 09 / 2025, page 61 / 522 6 / 6 30. Exercise device (1), according to claim 1, characterized in that the second connecting member (29) is at least substantially composed of titanium.

31. Exercise device (1), according to claim 1, characterized in that the second connecting member (29) is at least substantially composed of material(s) other than steel.

32. Exercise device (1), according to claim 1, characterized by additionally including a resistance device (10).

33. Exercise device, according to claim 1, characterized in that the frame (2) is configured to be supported on the ground.

34. Exercise device according to claim 24, characterized in that the frame (2D) is configured to be supported on the ground.

35. Device according to claim 1, characterized in that the frame (2) is configured to be supported on one or more wheels supported on the ground.

36. Device according to claim 25, characterized in that the frame (2D) is configured to be supported on one or more wheels supported on the ground. Petition 870250085852, dated 09 / 23 / 2025, p. 62 / 522

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