Muscle stretching and strengthening device

Abstract

A muscle stretching and strengthening device can include a height-adjustable vertical member, a handlebar connected to a first end of the vertical member, a base, and a connector that indirectly connects a second end of the vertical member to the base. The connector includes a back range of motion limiter and a front range of motion limiter that can be defined by a plurality of matching pairs of holes that are in spatial alignment with each other. Pins can be inserted through any of the matching pairs of holes that prevent the vertical member and the handlebar from arcing forwards and backwards beyond the pins. A user can stretch and strengthen muscles in a seated position by placing their feet on the base, grasping the handlebar and leaning forward and then back; or by using the device to transition from a seated to standing position and back.

Description

TECHNICAL FIELD

[0001] The field relates to a stretching device for shoulder muscles and other muscles of a user's torso. The device can be used to strengthen leg and hip muscles from a sitting to standing or standing to sitting position. The device includes a hinged base that can include a mechanism to prevent injury to the user.BRIEF DESCRIPTION OF THE FIGURES

[0002] The features and advantages of the embodiments will be more readily appreciated when considered in conjunction with the accompanying figures. The figures are not to be construed as limiting any of the embodiments.

[0003] FIG. 1 is a perspective view of a stretching and strengthening device according to certain embodiments.

[0004] FIG. 2 is a top view of a handlebar of the device according to certain embodiments.

[0005] FIG. 3 is a top view of a handlebar of the device according to certain other embodiments.

[0006] FIG. 4 is a side-view illustration showing movement of a vertical member in relation to a base of the device according to certain embodiments.

[0007] FIG. 5 is an enlarged view of the base and multi-adjustable connector of the device according to certain embodiments.

[0008] FIG. 6 is an enlarged top view of the base and the connector of the device according to certain embodiments.

[0009] FIG. 7 is an enlarged side view of the connector of FIG. 6.

[0010] FIGS. 8A and 8B are side views of different pins for securing range of motion limiters of the connector according to certain embodiments.

[0011] FIG. 9 is an illustration of a user using the device in a seated position according to certain embodiments.

[0012] FIG. 10 is a perspective view of the connector with a back range of motion limiter according to certain other embodiments.

[0013] FIG. 11 is an exploded view showing attachment of the vertical member to the connector according to certain embodiments.DETAILED DESCRIPTION

[0014] Stretching and exercising the muscles, joints, tendons, etc. in the shoulder region and other muscles in the torso may be desirable or necessary for a variety of reasons. For example, stretching exercises are frequently recommended if an injury occurs to evaluate whether surgery is needed. Oftentimes and before a surgery is scheduled, a patient may be ordered to do 8 to 12 weeks of physical therapy to determine if surgery can be avoided. Stretching exercises can also be beneficial before surgery, which is called pre-habilitation. Post-operative exercises are also frequently ordered to help stretch and strengthen muscles after surgery.

[0015] There are other reasons why a person can benefit from stretching and strengthening exercises. For example, many people suffer from a condition known as frozen shoulder. Frozen shoulder, or adhesive capsulitis, is a condition characterized by pain and stiffness in the shoulder joint, which gradually limits movement. It typically develops in three stages: freezing, frozen, and thawing, and can take one to three years to improve. Stretching and strengthening exercises can improve the range of motion in the affected shoulder and reduce pain. By way of a second example, many people have difficulty standing from a seated position or sitting from a standing position without assistance or having to use their arms to support their legs. This difficulty may arise and be present due to problems in the person's knees, ankles, or hips. Therefore, these people need to build strength in their leg, abdominal, and hip muscles for example, so they can sit or stand unassisted and use only their legs and associated muscles. Also, certain exercises are critical in surgical recovery or needed to develop functional strength in the hips and legs. Improvement in leg strength allows people to perform sit to stand motions independently; thus, allowing greater independence and mobility.

[0016] Current techniques to treat frozen shoulder or other shoulder issues generally involve the use of pulleys and positional exercises. Equipment and exercises, such as squats, can be used to increase strength in a person's leg, abdominal, and hip muscles. However, these types of exercises and equipment often require a spotter to provide support and stability to the person. These approaches can be effective in a clinical setting or a gym with a spotter; however, in a home setting it is difficult to emulate. A patient may not be able to attend in-person therapy in a clinical setting as frequently as may be needed or recommended. Also, the lack of options for home exercise equipment can make it impossible for the patient to do exercises at home outside a clinical setting, which can delay recovery and extend clinical treatment time.

[0017] Some current devices that are designed for stretching or strengthening muscles include a handlebar that is attached to a vertical member that is attached to a base with a ball joint. However, there are several disadvantages to the use of a ball joint. Firstly, there is an insufficient amount of tension that is created during use, so when a user leans forward to stretch muscles in their arms or shoulders, the user can actually be injured or pull or strain muscles because the handlebar can undesirably extend too far away from the user's body. Secondly, in this situation, a user may not be able to control the device, and the user either risks injury by maintaining a grip on the handlebar or must let go of the handlebar to avoid injury in which case the vertical member and handlebar will easily fall to the floor. When they hit the floor, the user can get injured from the vertical member and / or the handlebar hitting a part of their body, such as the lower leg or foot, or potentially become injured from the base of the device. Moreover, a user may have difficulty picking the device up off the floor. Thirdly, a ball joint can allow the vertical member to arc from side-to-side in addition to arcing forward and back. As with the lack of tension discussed above, a user can injure muscles, ligaments, etc. by not being able to control the amount of the arc from side-to-side and from front to back. Accordingly, a ball joint can make the device and use of the device dangerous and does not provide a way to safely stretch and strengthen muscles. Other current designs have no way to prevent the handlebar and vertical member from arcing 180° forwards and backwards and / or 180° from side-to-side in relation to the base. Accordingly, these other designs are dangerous for the user as well as ball joints.

[0018] Thus, there is a need for a stretching and strengthening device that solves the problems of current designs. The disclosed muscle stretching and strengthening device makes it possible for an individual user to achieve safe and effective improvement in joint range of motion. The device also offers improved balance assistance to users during strengthening exercises, such as squats, safely with a mechanism to prevent a user from becoming injured during use.

[0019] It is to be understood that the discussion of any of the embodiments regarding the stretching and strengthening device is intended to apply to all of the apparatus and method embodiments without the need to repeat the various embodiments throughout.

[0020] Turning to the figures, FIG. 1 shows a muscle stretching and strengthening device 100 according to certain embodiments. The device 100 includes a handlebar 110. The handlebar 110 is connected to a first end of a first vertical segment 121 of a vertical member 120. A middle portion 113 of the handlebar 110 can be permanently attached to the first end of the first vertical segment 121, for example via spot welding or other permanent attachment means. According to any of the embodiments, the handlebar 110 does not tilt or rotate about a longitudinal axis of the vertical member 120, which can provide advantages over current designs, such as providing more control during use of the device 100.

[0021] FIGS. 2 and 3 show top views of the handlebar 110 according to 2 different embodiments. As can be seen in FIG. 2 the handlebar 110 can be straight along a line extending from a first end 111, through the middle portion 113, to a second end 112. As can be seen in FIG. 3, the handlebar 110 can include a straight middle portion 113 and the first end 111 and the second end 112 can extend from the middle portion 113 at an angle θ. The angles θ are preferably the same. The angle θ can be in a range, for example from 90° to 170°. The handlebar 110 shown according to FIG. 3 is oriented in relation to the vertical member 120 such that the first end 111 and the second end 112 are angled towards the front of a user during use.

[0022] All or a portion of the handlebar 110 can include padding or a slip-resistant material 114 located around the handlebar. According to any of the embodiments where only a portion of the handlebar 110 is covered with the padding or slip-resistant material 114, the padding or slip-resistant material 114 preferably covers at least a portion of the first end 111 and the second end 112 at the location where a user places their hands to grip the handlebar 110 during use. According to this embodiment, the padding or slip-resistant material 114 can cover at least 3 inches, for example, along a length of the first and second ends 111 / 112. Having a portion of the first end 111 and the second end 112 covered with the padding or slip-resistant material 114 provides advantages to the user, such as cushioning to the user's hands and increasing the amount of grip a user can maintain during use. The slip-resistant covering for the handlebar 110 can be made from materials such as rubber, soft plastics, neoprene, urethanes, or foam materials. Instead of a slip-resistant covering, all or a portion of the handlebar 110—or at least a portion of the first and second ends 111 / 112—can have the surface modified, for example via sanding, etching, or scoring, to provide improved gripping during use. The thickness of the slip-resistant covering can range from 0.1 to 1.5 inches and can be selected to provide comfort to a user and increased control of the device during use. The handlebar 110 can include etching, for example in the form of a pattern, in lieu of the slip-resistant covering to prevent a user's hand from slipping during use.

[0023] The handlebar 110 can have a variety of cross-sectional shapes including but not limited to circular, square, or rectangular. The handlebar 110 can be solid or hollow. The handlebar 110 can have a total length that is the sum of the lengths of the first end 111, middle portion 113, and second end 112 in a range of 8 to 36 inches.

[0024] Referring back to FIGS. 1 and 4, the vertical member 120 is height adjustable and includes the first vertical segment 121 and a second vertical segment 122. The vertical member 120 can be telescoping, such that the length of the vertical member 120 is adjustable as depicted by the double-headed arrow in FIG. 1. According to these embodiments, the second vertical segment 122 is hollow so a second end of the first vertical segment 121 can be inserted into a first end of the second vertical segment 122 and move up and down within the second vertical segment 122, for example as shown in FIG. 4. The first vertical segment 121 can be solid or hollow. This telescoping feature allows the height of the vertical member 120 as measured from the handlebar 110 to a base 130 to be adjustable. According to any of the embodiments, the total length of the vertical member 120 along a longitudinal axis is in a range from 30 to 70 inches, which equates to the height. Accordingly, the lengths of the first vertical segment 121 and the second vertical segment 122 can be selected such that the total length of the vertical member 120 is adjustable to fall within this range. It is to be understood that the length of the first vertical segment 121 can be the same or different from the length of the second vertical segment 122.

[0025] Any type of locking mechanism can be used to maintain the length of the vertical member 120 at a desired height after adjustment. By way of a first example and with reference to FIG. 4, the second vertical segment 122 can include a plurality of holes 123 that penetrate from an outside through to an inside of the second vertical segment 122. The holes 123 can be spaced a desired distance apart from each other, for example a hole every 1 or 2 inches apart. The number of holes 123 and the lengths of the first and second vertical segments 121 / 122 can be selected such that the total length of the vertical member 120 falls within the range. According to any of the embodiments, any holes 123 located near the first end of the second vertical segment 122 (i.e., the end located closest to the handlebar 110) are positioned such that a desired length of a the second end of the first vertical segment 121 (i.e., the end located farther away from the handlebar 110) is located within the second vertical segment 122. By way of example, if it is desirable that at least 2 inches of the second end of the first vertical segment 121 is located within the second vertical segment 122 then the topmost hole 123 may need to be located 2 inches from the first end of the second vertical segment 122. This can advantageously provide increased support to the device 100 during use. To temporarily lock the segments 121 / 122 together at a desired length, the first vertical segment 121 can include a locking protrusion 124. The locking protrusion 124 has dimensions such that it fits within the holes 123. The locking protrusion 124 can be depressed by a user in order to move the segments 121 / 122 in relation to each other and then fit within and protrude out of a desired hole 123 of the second vertical segment 122 to lock the segments 121 / 122 at the desired height. According to any of the embodiments, only one locking protrusion 124 is included on the first vertical segment 121. By way of a second example and referring back to FIG. 1, a tension screw lock 125 can be used as the locking mechanism in addition to or in lieu of the plurality of holes and the locking protrusion. A user can unscrew the tension screw lock 125 to allow the first vertical segment 121 to move within the second vertical segment 122 until the desired height is obtained. Then, the user can tighten the tension screw lock 125 to prevent telescoping movement and temporarily lock the segments 121 / 122 together at the desired height.

[0026] The first end of the second vertical segment 122 of the vertical member 120 is in telescopic connection with a second end of the first vertical segment 121. A second end of the second vertical segment 122 can be indirectly connected via a connector 140 to a central location of a base 130. The connector 140 can be any type of connector that indirectly or directly attaches the vertical member 120 to the base 130 and allows the vertical member 120 to arc forwards and backwards in relation to the base and a user. The connector can also be any type of connector that allows the connector to rotate around a longitudinal axis of the vertical member 120 in relation to the base 130. By way of example, the connector 140 can include a fixed connection 141 that is permanently attached to a top side 131 of the base 130. The fixed connection 141 can be stationary in relation to the top side 131 of the base 130 such that no movement of the fixed connection 141 occurs. As can be seen in FIG. 5 for example, the connector 140 can include a first side 144 and a second side 145. The vertical member 120 is meant to be stored in an upright position. As can be seen in FIG. 7, and a friction spring 150 can be located within the second end of the second vertical segment 122 and a bolt 151 can be inserted through a hole in the base 130 and a hole in the bottom of the connector 140 and screwed into the friction spring 150 to secure the vertical member 120 to the base 130. The friction spring 150 can be used to hold the vertical member 120 in an upright vertical position. According to other embodiments and with reference to FIGS. 10 and 11, the second end of the second vertical segment 122 can be directly and moveably connected to the first and second sides 144 / 145 of the connector 140. As can be seen, attachment holes 127 can be located on opposite sides of the second vertical segment 122 and each of the first and second sides 144 / 145 can include holes located at the top. A bolt 126 can be passed through the holes of the first and second sides 144 / 145 and the attachment holes 127 of the second vertical segment 122 and a nut 128 can be placed on an end of the bolt 126 to secure the second vertical segment 122 to the first and second sides 144 / 145 of the connector 140.

[0027] Referring back to FIG. 1 the first and second sides 144 / 145 of the connector 140 are rotatable around the base 130, which in turn allows the vertical member 120 and the handlebar 110 to be rotatable around a longitudinal axis of the vertical member 120 in relation to a plane of the base 130. In this manner, the handlebar 110 is rotatable in relation to a plane of the base 130 by a user rotating the handlebar 110, which rotates the connector 140. Some current designs allow the handlebar itself to rotate about a longitudinal axis of a vertical member. However, this can be dangerous or difficult for a user to control a device during use. One significant advantage to the embodiments described herein, is that because the handlebar 110 does not directly rotate but the connector 140 does (which causes indirect rotation of the handlebar 110) means that much greater control over the device is achieved due to the rotatable connector 140 being located on the base 130 and adjacent to a user's feet during use.

[0028] As can be seen in FIGS. 4 and 9, the vertical member 120 and the handlebar 110 can be angled towards or away from a user in relation to the base 130 during use. That is, the vertical member 120 and the handlebar 110 can arc forwards and backwards within the first and second sides 144 / 145 of the connector 140. A lower portion of the second vertical segment 122 can include a bolt 126 that is located atop the top of the first and second sides 144 / 145. The bolt 126 can be used to attach the vertical member 120 to the connector 140.

[0029] The connector 140 can include one or more range of motion limiters. As can be seen in FIGS. 4-7 for example, each of the first and second sides 144 / 145 can include matching holes defining a back range of motion limiter 142. As shown in FIG. 7, there can be two back range of motion limiters 142. That is, the first side 144 of the connector 140 and the second side 145 of the connector 140 can each have a hole whereby the holes are in alignment and location with each other for receiving a first pin 146. The first pin 146 can be solid or hollow and has an outer diameter that is less than the diameter of the holes. The first pin 146 can have an outer diameter, for example in a range of 0.1 to 0.5 inches. Thus, the diameter of the holes of the back range of motion limiter 142 can be slightly less than 0.1 to 0.5 inches. In this manner, with the holes in alignment, the first pin 146 can be inserted through each of the holes to create a physical stop of the second vertical segment 122 of the vertical member 120 from arcing beyond the first pin 146. A user can insert the first pin 146 through the holes of the back range of motion limiter 142 for example by grasping a knob 148 at a first end of the first pin 146, and aligning a second end of the first pin 146 that is the opposite side from the first end through both holes. The first pin 146 can be a clevis pin. The second end of the first pin 146 that is opposite from the knob 148 can have a hole that traverses entirely through the second end of the pin, like a clevis pin has. A cotter pin or spring cotter pin 149 (shown in FIGS. 8A and 8B, respectively), for example, can be inserted through this hole to prevent the first pin 146 from undesirably slipping out of the holes of the back range of motion limiter 142 during use. Other ways to secure the first pin 146 within the matching holes of the back range of motion limiter 142 can also be used. According to any of the embodiments, the back range of motion limiter 142 is located near a user's heels of the feet when in use. In this manner, it is less likely for the vertical member 120 and / or handlebar 110 to accidentally fall back towards the user and make contact with the user's body during use.

[0030] FIG. 10 shows a back range of motion limiter 142 according to other embodiments. According to these embodiments, the back range of motion limiter 142 can be permanently or removably attached to the top side 131 of the base 130. The back range of motion limiter 142 can include a straight portion that extends up from the top side 131 of the base 130 that is in the shape of a semi-circle such that the second vertical segment 122 can fit within the straight portion. A top of the back range of motion limiter 142 can include 2 curvature pieces that extend away from the straight portion to receive and secure the second vertical segment 122. An angled portion, such as a triangular-shaped or other shapes, can extend back and away from the straight portion to provide resistance to the vertical member 120 during use. The back range of motion limiter 142 can be made of a semi-rigid or rigid material, such as but not excluding metals, metal alloys, semi-rigid plastics or rubbers, or hard plastics. The back range of motion limiter 142 can have a height that extends up from the base 130 and can be in a range of 1 to 10 inches.

[0031] The first and second sides 144 / 145 of the connector 140 can also include a plurality of matching pairs of holes defining front range of motion limiters 143. The corresponding matching pair of holes of the front range of motion limiters 143 can range from 1 to 7, for example, and can have a spacing pattern along the first and second sides 144 / 145, for example as shown in FIGS. 4, 5, and 7. As used herein, the phrase “matching pair” means the first side 144 includes a hole at a specific location and the second side 145 includes a corresponding hole that matches the specific location of the hole on the first side 144. In this manner, the matching pair of holes are spatially aligned with each other to receive a second pin 147. The second pin 147 can be placed within any of the matching pair of holes of the front range of motion limiters 143. Preferably, all the matching pair of holes for the back range of motion limiter 142 and the front range of motion limiters 143 have the same diameter; and the first pin 146 and the second pin 147 have the same outer diameter. In this manner, either pin 146 / 147 can be inserted into any of the matching pair of holes. The embodiments discussed above related to the first pin 146, the knob 148, and the cotter or spring cotter pin 149, as well as the method of inserting the first pin 146 applies equally to the second pin 147 and front range of motion limiters 143 without the need to repeat those embodiments again.

[0032] The second end of the second vertical segment 122 of the vertical member 120 is positioned between the first pin 146 and the second pin 147 on the inside of the first and second sides 144 / 145. A distance D is created between the first pin 146 and the second pin 147, which is also created between the back range of motion limiter 142 and the front range of motion limiters 143, as shown in FIG. 6. The vertical member 120 and the handlebar 110 arcs forwards and backwards between the back range of motion limiter 142 and the front range of motion limiter 143. As shown in FIG. 7, the distance D can be increased or decreased depending on where a user inserts the first pin 146 into the back range of motion limiters 142 and inserts the second pin 147 into the front range of motion limiters 143. By way of example and as shown, there can be 2 matching pair of holes for the back range of motion limiter 142 and 5 matching pair of holes for the front range of motion limiters 143. Accordingly, a user can insert the second pin 147 into the top left matching pair of holes for the front range of motion limiters 143 and the first pin 146 into the topmost matching pair of holes for the back range of motion limiter 142 which creates distance D1. A user can also insert the second pin 147 into the bottommost matching pair of holes for the front range of motion limiters 143 and the first pin 146 into the bottom right matching pair of holes for the back range of motion limiter 142 which creates distance D4. The amount of arc, for example as shown in FIGS. 4, 7, and 9, during use can be determined based on the distance D. By way of example, if a user desires more arc, then the user can insert the first and second pins 146 / 147 to create distance D2, which is the greatest distance shown. If less arc is desired, then the user can insert the first and second pins 146 / 147 to create distance D3, which is a shorter distance than Dz. Accordingly, the device 100 is adjustable to provide as much arc as desired or needed for a particular user. A greater distance D may be desirable if the user is using the device 100 in a seated position to perform stretching and strengthening exercises for the shoulders, while a shorter distance D may be desirable if the user is using the device 100 for stretching and strengthening exercises for the leg muscles, hip muscles, etc. to transition between a seated position to a standing position and vice versa. Moreover, as a user advances in stretching exercises, the distance D can be increased to provide a greater stretch.

[0033] The muscle stretching and strengthening device 100 includes a base 130. With reference to example FIGS. 4, 5, and 9, the base 130 has a top side 131 and a bottom side 132. The top side 131 can be flat with an upper surface. “Flat” means that a plane of the side is 180° with no curvature. The bottom side 132 can also be flat and have a bottom surface. A user can place their feet on the top side 131 of the base 130 during use, for example as shown in FIG. 9. All or a portion of the upper surface of the base 130 can include a traction control component 133, preferably located on the base where a user's feet will be placed. As shown in FIG. 5, the upper surface of the top side 131 of the base 130 can be partially or wholly covered with a slip resistant material that serves as the traction control component 133. Sanding, etching, or scoring can also be used instead of the slip resistant material. As shown in FIG. 10, a plurality of anti-slip grooves or channels or raised sections can be used as the traction control component 133. In this manner, a user can obtain better traction during use and the traction control component inhibits or prevents their feet from slipping off the base 130 during use. The bottom side 132 of the base 130 can also be wholly or partially covered in a slip-resistant material and / or cushioning. This also can help prevent or inhibit the base 130 from slipping out or moving from underneath the user during use.

[0034] The base 130 can have a mostly rectangular or oval shape and include straight edges, curved edges, or combinations thereof. The base 130 has a perimeter and a length and a depth. The “length” is defined as a line along the plane of the base 130 that is perpendicular to a line along a user's feet spanning from the heels to toes. The “depth” is defined as a line along the plane of the base 130 that is parallel to a line along a user's feet spanning from the heels to toes. The depth can be different along the length of the base 130, for example if there are curved edges like shown in FIG. 5. The length can range from 10 to 36 inches, for example. The depth can range from 4 to 20 inches, for example. According to any of the embodiments, the length of the base 130 is greater than the depth of the base 130. The length and depth can be selected such that a user has a large enough surface area to place their feet during use and to maintain control and provide stability during use. By way of example, the length can be selected such that the entire width of a user's feet can be placed directly on the top side 131 of the base 130 without overhanging the outside edges of the base 130. By way of another example, the depth can be selected such that at least ⅓, ½, or the entire length of a user's feet can be placed directly on the top side 131 of the base 130. A larger surface area can allow more of the bottoms of a user's feet to be placed on the base 130, which can provide more stability and control over the device 100 during use.

[0035] The various components of the device 100 can be made from rigid materials, including but not limited to polymeric plastics, thermoset plastics, metals or metal alloys, fiberglass, or carbon fiber. As used herein, the term “metal alloy” means a mixture of two or more elements, wherein at least one of the elements is a metal. The other element(s) can be a non-metal or a different metal. An example of a metal and non-metal alloy is steel, comprising the metal element iron and the non-metal element carbon. An example of a metal and metal alloy is bronze, comprising the metallic elements copper and tin. As used herein, the term “metal” and all grammatical variations thereof means any substance that comprises a metal, which includes pure metals and metal alloys.

[0036] Examples of plastics include but are not limited to low-density polyethylene (LDPE), high-density polyethylene (HDPE), polyethylene terephthalate (PET or PETE), polyvinyl chloride (PVC), polypropylene (PP), polystyrene (PS), high-impact polystyrene (HIPS), acrylonitrile butadiene styrene (ABS), cellulose-acetate-butyrate (Cab), polycarbonate (PC), or polyvinylidene fluoride or polyvinylidene difluoride (PVDF). Examples of metals include but are not limited to iron, aluminum, steel, carbon steel, stainless steel, zinc, lead, copper, tin, brass, nickel, and chromium. While all of the components of the device 100 (e.g., the vertical member 120, handlebar 110, and base 130) can be made from the same material (e.g., stainless steel or HDPE), it is also possible to have some of the components made from a different material than the other components. Moreover, one or more of the components can also include a reinforcing layer that is made from a material having a higher ductile or tensile strength compared to the material of the components. Preferably, a given component is made from the same material. For example, the first vertical segment 121 and the second vertical segment 122 of the vertical member 120 are preferably made from the same material.

[0037] The handlebar 110 and vertical member 120 can each be cylindrical in shape having a circular cross-section or other geometric cross-sectional shapes, such as a triangle, square, or rectangle. The first vertical segment 121, second vertical segment 122 and handlebar 110 can have the same or different diameters ranging from 0.25 to 4 inches (0.63 to 10 cm). Additionally, the second vertical segment 122 can be hollow, while the first vertical segment 121 and the handlebar 110 can be solid. The diameter of the segments 121 / 122 and the handlebar 110 can be selected based on whether the component is solid or hollow and to provide structural integrity to the device 100 during use. By way of example, for solid components, the diameter may only need to be 0.25 inches to provide structural integrity; while for hollow components, the diameter may need to be 4 inches to provide structural integrity.

[0038] The device 100 can be used to stretch and / or strengthen a variety of muscles. Methods can include using the device 100 to stretch and / or strengthen the variety of muscles. A user can stand on the top side 131 of the base 130 when in a standing position or rest their feet upon on the top side 131 when in a seated position. When the user grips the handlebar 110, a mechanical gusset is formed to create support and leverage assistance to the user. As the user leans forward, the arc of the handlebar 110 in relation to the base 130 increases, which results in tension being created in the vertical member 120. The tension is translated throughout some or all of the upper arms, shoulders, torso, and legs; and thus, allows the muscles to be stretched and strengthened. With continued use, improved flexibility and strength can occur. Preferably, a user remains in a seated position to stretch the muscles in the arms, back, and shoulders.

[0039] The device 100 can also be used to strengthen the muscles in the leg, hips, and other areas of the body. According to this aspect, a user can begin in a seated position and place their hands on the handlebar 110 and their feet on the top side 131 of the base 130. The user can then bend their upper body slightly forward which increases the arc of the handlebar 110 in relation to the base 130 and use their legs to stand up. The tension created when the arc is increased also acts as a support mechanism that assists the user, so the user has proper balance and proper body mechanics when standing. The user can then sit back down from the standing position while maintaining a grip on the handlebar, which decreases the arc and brings the handlebar 110 back closer to the user's body. With continued use by sitting and then standing, the user's muscles can be strengthened. The connector 140 is critical in providing normal biomechanical movement so the user develops functional strength and flexibility. Because a user has more control over the device compared to other current designs, the user can feel more confident and safer without fear of unintentional injury, which allows the user to be more relaxed during use. Because the user is more relaxed, undesirable tension in the user's muscles and joints for example is significantly decreased. This allows for normal biomechanical movement and reduced risk of injury compared to being tense if using other current devices.

[0040] Another significant advantage to the device 100 is the safety features, which include the back range of motion limiter 142 and the front range of motion limiters 143. These safety features substantially inhibit or prevent accidental injury to the user when using the device because there is a very low possibility that the vertical member 120 and / or the handlebar 110 uncontrollably arc too much and make contact with a part of the user's body. Another significant advantage to the device 100 is that a user can select and adjust the amount of arc and / or rotation of the vertical member 120 and handlebar 110 by selecting a desired distance D between the back range of motion limiter 142 and front range of motion limiters 143. By way of example, a user just beginning to use the device 100 for stretching and strengthening exercises can decrease the distance D by selecting which matching pair of holes to place the first and second pins 146 / 147. With continued use and as the user advances with the exercises, a deeper stretch may be needed. Thus, the user can then increase the distance D so a deeper stretch can be achieved. This versatility allows a user to safely increase the amount of stretching and strengthening of their muscles. Thus, the muscle stretching and strengthening device 100 has many advantages over current designs intended for use in the home or other settings outside of a physical therapist's location, a gym, nursing home, or doctor's office.

[0041] Therefore, the apparatus, methods, and systems of the present disclosure are well adapted to attain the ends and advantages mentioned as well as those that are inherent therein. The particular embodiments disclosed above are illustrative only, as the present disclosure may be modified and practiced in different but equivalent manners apparent to those skilled in the art having the benefit of the teachings herein. Furthermore, no limitations are intended to the details of construction or design herein shown, other than as described in the claims below. It is, therefore, evident that the particular illustrative embodiments disclosed above may be altered or modified and all such variations are considered within the scope and spirit of the present disclosure.

[0042] As used herein, the words “comprise,”“have,”“include,” and all grammatical variations thereof are each intended to have an open, non-limiting meaning that does not exclude additional elements or steps. While the apparatus, systems, and methods are described in terms of “comprising,”“containing,” or “including” various components or steps, the apparatus, systems, and methods also can “consist essentially of” or “consist of” the various components and steps. It should also be understood that, as used herein, “first,”“second,” and “third,” are assigned arbitrarily and are merely intended to differentiate between two or more ends, vertical segments, etc., as the case may be, and does not indicate any sequence. Furthermore, it is to be understood that the mere use of the word “first” does not require that there be any “second,” and the mere use of the word “second” does not require that there be any “third,” etc.

[0043] Whenever a numerical range with a lower limit and an upper limit is disclosed, any number and any included range falling within the range is specifically disclosed. In particular, every range of values (of the form, “from about a to about b,” or, equivalently, “from approximately a to b,” or, equivalently, “from approximately a-b”) disclosed herein is to be understood to set forth every number and range encompassed within the broader range of values. Also, the terms in the claims have their plain, ordinary meaning unless otherwise explicitly and clearly defined by the patentee. Moreover, the indefinite articles “a” or “an,” as used in the claims, are defined herein to mean one or more than one of the element that it introduces. If there is any conflict in the usages of a word or term in this specification and one or more patent(s) or other documents that may be incorporated herein by reference, the definitions that are consistent with this specification should be adopted.

Examples

Embodiment Construction

[0014]Stretching and exercising the muscles, joints, tendons, etc. in the shoulder region and other muscles in the torso may be desirable or necessary for a variety of reasons. For example, stretching exercises are frequently recommended if an injury occurs to evaluate whether surgery is needed. Oftentimes and before a surgery is scheduled, a patient may be ordered to do 8 to 12 weeks of physical therapy to determine if surgery can be avoided. Stretching exercises can also be beneficial before surgery, which is called pre-habilitation. Post-operative exercises are also frequently ordered to help stretch and strengthen muscles after surgery.

[0015]There are other reasons why a person can benefit from stretching and strengthening exercises. For example, many people suffer from a condition known as frozen shoulder. Frozen shoulder, or adhesive capsulitis, is a condition characterized by pain and stiffness in the shoulder joint, which gradually limits movement. It typically develops in t...

TECHNICAL FIELD

[0001] The field relates to a stretching device for shoulder muscles and other muscles of a user's torso. The device can be used to strengthen leg and hip muscles from a sitting to standing or standing to sitting position. The device includes a hinged base that can include a mechanism to prevent injury to the user.BRIEF DESCRIPTION OF THE FIGURES

[0002] The features and advantages of the embodiments will be more readily appreciated when considered in conjunction with the accompanying figures. The figures are not to be construed as limiting any of the embodiments.

[0003] FIG. 1 is a perspective view of a stretching and strengthening device according to certain embodiments.

[0004] FIG. 2 is a top view of a handlebar of the device according to certain embodiments.

[0005] FIG. 3 is a top view of a handlebar of the device according to certain other embodiments.

[0006] FIG. 4 is a side-view illustration showing movement of a vertical member in relation to a base of the device according to certain embodiments.

[0007] FIG. 5 is an enlarged view of the base and multi-adjustable connector of the device according to certain embodiments.

[0008] FIG. 6 is an enlarged top view of the base and the connector of the device according to certain embodiments.

[0009] FIG. 7 is an enlarged side view of the connector of FIG. 6.

[0010] FIGS. 8A and 8B are side views of different pins for securing range of motion limiters of the connector according to certain embodiments.

[0011] FIG. 9 is an illustration of a user using the device in a seated position according to certain embodiments.

[0012] FIG. 10 is a perspective view of the connector with a back range of motion limiter according to certain other embodiments.

[0013] FIG. 11 is an exploded view showing attachment of the vertical member to the connector according to certain embodiments.DETAILED DESCRIPTION

[0014] Stretching and exercising the muscles, joints, tendons, etc. in the shoulder region and other muscles in the torso may be desirable or necessary for a variety of reasons. For example, stretching exercises are frequently recommended if an injury occurs to evaluate whether surgery is needed. Oftentimes and before a surgery is scheduled, a patient may be ordered to do 8 to 12 weeks of physical therapy to determine if surgery can be avoided. Stretching exercises can also be beneficial before surgery, which is called pre-habilitation. Post-operative exercises are also frequently ordered to help stretch and strengthen muscles after surgery.

[0015] There are other reasons why a person can benefit from stretching and strengthening exercises. For example, many people suffer from a condition known as frozen shoulder. Frozen shoulder, or adhesive capsulitis, is a condition characterized by pain and stiffness in the shoulder joint, which gradually limits movement. It typically develops in three stages: freezing, frozen, and thawing, and can take one to three years to improve. Stretching and strengthening exercises can improve the range of motion in the affected shoulder and reduce pain. By way of a second example, many people have difficulty standing from a seated position or sitting from a standing position without assistance or having to use their arms to support their legs. This difficulty may arise and be present due to problems in the person's knees, ankles, or hips. Therefore, these people need to build strength in their leg, abdominal, and hip muscles for example, so they can sit or stand unassisted and use only their legs and associated muscles. Also, certain exercises are critical in surgical recovery or needed to develop functional strength in the hips and legs. Improvement in leg strength allows people to perform sit to stand motions independently; thus, allowing greater independence and mobility.

[0016] Current techniques to treat frozen shoulder or other shoulder issues generally involve the use of pulleys and positional exercises. Equipment and exercises, such as squats, can be used to increase strength in a person's leg, abdominal, and hip muscles. However, these types of exercises and equipment often require a spotter to provide support and stability to the person. These approaches can be effective in a clinical setting or a gym with a spotter; however, in a home setting it is difficult to emulate. A patient may not be able to attend in-person therapy in a clinical setting as frequently as may be needed or recommended. Also, the lack of options for home exercise equipment can make it impossible for the patient to do exercises at home outside a clinical setting, which can delay recovery and extend clinical treatment time.

[0017] Some current devices that are designed for stretching or strengthening muscles include a handlebar that is attached to a vertical member that is attached to a base with a ball joint. However, there are several disadvantages to the use of a ball joint. Firstly, there is an insufficient amount of tension that is created during use, so when a user leans forward to stretch muscles in their arms or shoulders, the user can actually be injured or pull or strain muscles because the handlebar can undesirably extend too far away from the user's body. Secondly, in this situation, a user may not be able to control the device, and the user either risks injury by maintaining a grip on the handlebar or must let go of the handlebar to avoid injury in which case the vertical member and handlebar will easily fall to the floor. When they hit the floor, the user can get injured from the vertical member and / or the handlebar hitting a part of their body, such as the lower leg or foot, or potentially become injured from the base of the device. Moreover, a user may have difficulty picking the device up off the floor. Thirdly, a ball joint can allow the vertical member to arc from side-to-side in addition to arcing forward and back. As with the lack of tension discussed above, a user can injure muscles, ligaments, etc. by not being able to control the amount of the arc from side-to-side and from front to back. Accordingly, a ball joint can make the device and use of the device dangerous and does not provide a way to safely stretch and strengthen muscles. Other current designs have no way to prevent the handlebar and vertical member from arcing 180° forwards and backwards and / or 180° from side-to-side in relation to the base. Accordingly, these other designs are dangerous for the user as well as ball joints.

[0018] Thus, there is a need for a stretching and strengthening device that solves the problems of current designs. The disclosed muscle stretching and strengthening device makes it possible for an individual user to achieve safe and effective improvement in joint range of motion. The device also offers improved balance assistance to users during strengthening exercises, such as squats, safely with a mechanism to prevent a user from becoming injured during use.

[0019] It is to be understood that the discussion of any of the embodiments regarding the stretching and strengthening device is intended to apply to all of the apparatus and method embodiments without the need to repeat the various embodiments throughout.

[0020] Turning to the figures, FIG. 1 shows a muscle stretching and strengthening device 100 according to certain embodiments. The device 100 includes a handlebar 110. The handlebar 110 is connected to a first end of a first vertical segment 121 of a vertical member 120. A middle portion 113 of the handlebar 110 can be permanently attached to the first end of the first vertical segment 121, for example via spot welding or other permanent attachment means. According to any of the embodiments, the handlebar 110 does not tilt or rotate about a longitudinal axis of the vertical member 120, which can provide advantages over current designs, such as providing more control during use of the device 100.

[0021] FIGS. 2 and 3 show top views of the handlebar 110 according to 2 different embodiments. As can be seen in FIG. 2 the handlebar 110 can be straight along a line extending from a first end 111, through the middle portion 113, to a second end 112. As can be seen in FIG. 3, the handlebar 110 can include a straight middle portion 113 and the first end 111 and the second end 112 can extend from the middle portion 113 at an angle θ. The angles θ are preferably the same. The angle θ can be in a range, for example from 90° to 170°. The handlebar 110 shown according to FIG. 3 is oriented in relation to the vertical member 120 such that the first end 111 and the second end 112 are angled towards the front of a user during use.

[0022] All or a portion of the handlebar 110 can include padding or a slip-resistant material 114 located around the handlebar. According to any of the embodiments where only a portion of the handlebar 110 is covered with the padding or slip-resistant material 114, the padding or slip-resistant material 114 preferably covers at least a portion of the first end 111 and the second end 112 at the location where a user places their hands to grip the handlebar 110 during use. According to this embodiment, the padding or slip-resistant material 114 can cover at least 3 inches, for example, along a length of the first and second ends 111 / 112. Having a portion of the first end 111 and the second end 112 covered with the padding or slip-resistant material 114 provides advantages to the user, such as cushioning to the user's hands and increasing the amount of grip a user can maintain during use. The slip-resistant covering for the handlebar 110 can be made from materials such as rubber, soft plastics, neoprene, urethanes, or foam materials. Instead of a slip-resistant covering, all or a portion of the handlebar 110—or at least a portion of the first and second ends 111 / 112—can have the surface modified, for example via sanding, etching, or scoring, to provide improved gripping during use. The thickness of the slip-resistant covering can range from 0.1 to 1.5 inches and can be selected to provide comfort to a user and increased control of the device during use. The handlebar 110 can include etching, for example in the form of a pattern, in lieu of the slip-resistant covering to prevent a user's hand from slipping during use.

[0023] The handlebar 110 can have a variety of cross-sectional shapes including but not limited to circular, square, or rectangular. The handlebar 110 can be solid or hollow. The handlebar 110 can have a total length that is the sum of the lengths of the first end 111, middle portion 113, and second end 112 in a range of 8 to 36 inches.

[0024] Referring back to FIGS. 1 and 4, the vertical member 120 is height adjustable and includes the first vertical segment 121 and a second vertical segment 122. The vertical member 120 can be telescoping, such that the length of the vertical member 120 is adjustable as depicted by the double-headed arrow in FIG. 1. According to these embodiments, the second vertical segment 122 is hollow so a second end of the first vertical segment 121 can be inserted into a first end of the second vertical segment 122 and move up and down within the second vertical segment 122, for example as shown in FIG. 4. The first vertical segment 121 can be solid or hollow. This telescoping feature allows the height of the vertical member 120 as measured from the handlebar 110 to a base 130 to be adjustable. According to any of the embodiments, the total length of the vertical member 120 along a longitudinal axis is in a range from 30 to 70 inches, which equates to the height. Accordingly, the lengths of the first vertical segment 121 and the second vertical segment 122 can be selected such that the total length of the vertical member 120 is adjustable to fall within this range. It is to be understood that the length of the first vertical segment 121 can be the same or different from the length of the second vertical segment 122.

[0025] Any type of locking mechanism can be used to maintain the length of the vertical member 120 at a desired height after adjustment. By way of a first example and with reference to FIG. 4, the second vertical segment 122 can include a plurality of holes 123 that penetrate from an outside through to an inside of the second vertical segment 122. The holes 123 can be spaced a desired distance apart from each other, for example a hole every 1 or 2 inches apart. The number of holes 123 and the lengths of the first and second vertical segments 121 / 122 can be selected such that the total length of the vertical member 120 falls within the range. According to any of the embodiments, any holes 123 located near the first end of the second vertical segment 122 (i.e., the end located closest to the handlebar 110) are positioned such that a desired length of a the second end of the first vertical segment 121 (i.e., the end located farther away from the handlebar 110) is located within the second vertical segment 122. By way of example, if it is desirable that at least 2 inches of the second end of the first vertical segment 121 is located within the second vertical segment 122 then the topmost hole 123 may need to be located 2 inches from the first end of the second vertical segment 122. This can advantageously provide increased support to the device 100 during use. To temporarily lock the segments 121 / 122 together at a desired length, the first vertical segment 121 can include a locking protrusion 124. The locking protrusion 124 has dimensions such that it fits within the holes 123. The locking protrusion 124 can be depressed by a user in order to move the segments 121 / 122 in relation to each other and then fit within and protrude out of a desired hole 123 of the second vertical segment 122 to lock the segments 121 / 122 at the desired height. According to any of the embodiments, only one locking protrusion 124 is included on the first vertical segment 121. By way of a second example and referring back to FIG. 1, a tension screw lock 125 can be used as the locking mechanism in addition to or in lieu of the plurality of holes and the locking protrusion. A user can unscrew the tension screw lock 125 to allow the first vertical segment 121 to move within the second vertical segment 122 until the desired height is obtained. Then, the user can tighten the tension screw lock 125 to prevent telescoping movement and temporarily lock the segments 121 / 122 together at the desired height.

[0026] The first end of the second vertical segment 122 of the vertical member 120 is in telescopic connection with a second end of the first vertical segment 121. A second end of the second vertical segment 122 can be indirectly connected via a connector 140 to a central location of a base 130. The connector 140 can be any type of connector that indirectly or directly attaches the vertical member 120 to the base 130 and allows the vertical member 120 to arc forwards and backwards in relation to the base and a user. The connector can also be any type of connector that allows the connector to rotate around a longitudinal axis of the vertical member 120 in relation to the base 130. By way of example, the connector 140 can include a fixed connection 141 that is permanently attached to a top side 131 of the base 130. The fixed connection 141 can be stationary in relation to the top side 131 of the base 130 such that no movement of the fixed connection 141 occurs. As can be seen in FIG. 5 for example, the connector 140 can include a first side 144 and a second side 145. The vertical member 120 is meant to be stored in an upright position. As can be seen in FIG. 7, and a friction spring 150 can be located within the second end of the second vertical segment 122 and a bolt 151 can be inserted through a hole in the base 130 and a hole in the bottom of the connector 140 and screwed into the friction spring 150 to secure the vertical member 120 to the base 130. The friction spring 150 can be used to hold the vertical member 120 in an upright vertical position. According to other embodiments and with reference to FIGS. 10 and 11, the second end of the second vertical segment 122 can be directly and moveably connected to the first and second sides 144 / 145 of the connector 140. As can be seen, attachment holes 127 can be located on opposite sides of the second vertical segment 122 and each of the first and second sides 144 / 145 can include holes located at the top. A bolt 126 can be passed through the holes of the first and second sides 144 / 145 and the attachment holes 127 of the second vertical segment 122 and a nut 128 can be placed on an end of the bolt 126 to secure the second vertical segment 122 to the first and second sides 144 / 145 of the connector 140.

[0027] Referring back to FIG. 1 the first and second sides 144 / 145 of the connector 140 are rotatable around the base 130, which in turn allows the vertical member 120 and the handlebar 110 to be rotatable around a longitudinal axis of the vertical member 120 in relation to a plane of the base 130. In this manner, the handlebar 110 is rotatable in relation to a plane of the base 130 by a user rotating the handlebar 110, which rotates the connector 140. Some current designs allow the handlebar itself to rotate about a longitudinal axis of a vertical member. However, this can be dangerous or difficult for a user to control a device during use. One significant advantage to the embodiments described herein, is that because the handlebar 110 does not directly rotate but the connector 140 does (which causes indirect rotation of the handlebar 110) means that much greater control over the device is achieved due to the rotatable connector 140 being located on the base 130 and adjacent to a user's feet during use.

[0028] As can be seen in FIGS. 4 and 9, the vertical member 120 and the handlebar 110 can be angled towards or away from a user in relation to the base 130 during use. That is, the vertical member 120 and the handlebar 110 can arc forwards and backwards within the first and second sides 144 / 145 of the connector 140. A lower portion of the second vertical segment 122 can include a bolt 126 that is located atop the top of the first and second sides 144 / 145. The bolt 126 can be used to attach the vertical member 120 to the connector 140.

[0029] The connector 140 can include one or more range of motion limiters. As can be seen in FIGS. 4-7 for example, each of the first and second sides 144 / 145 can include matching holes defining a back range of motion limiter 142. As shown in FIG. 7, there can be two back range of motion limiters 142. That is, the first side 144 of the connector 140 and the second side 145 of the connector 140 can each have a hole whereby the holes are in alignment and location with each other for receiving a first pin 146. The first pin 146 can be solid or hollow and has an outer diameter that is less than the diameter of the holes. The first pin 146 can have an outer diameter, for example in a range of 0.1 to 0.5 inches. Thus, the diameter of the holes of the back range of motion limiter 142 can be slightly less than 0.1 to 0.5 inches. In this manner, with the holes in alignment, the first pin 146 can be inserted through each of the holes to create a physical stop of the second vertical segment 122 of the vertical member 120 from arcing beyond the first pin 146. A user can insert the first pin 146 through the holes of the back range of motion limiter 142 for example by grasping a knob 148 at a first end of the first pin 146, and aligning a second end of the first pin 146 that is the opposite side from the first end through both holes. The first pin 146 can be a clevis pin. The second end of the first pin 146 that is opposite from the knob 148 can have a hole that traverses entirely through the second end of the pin, like a clevis pin has. A cotter pin or spring cotter pin 149 (shown in FIGS. 8A and 8B, respectively), for example, can be inserted through this hole to prevent the first pin 146 from undesirably slipping out of the holes of the back range of motion limiter 142 during use. Other ways to secure the first pin 146 within the matching holes of the back range of motion limiter 142 can also be used. According to any of the embodiments, the back range of motion limiter 142 is located near a user's heels of the feet when in use. In this manner, it is less likely for the vertical member 120 and / or handlebar 110 to accidentally fall back towards the user and make contact with the user's body during use.

[0030] FIG. 10 shows a back range of motion limiter 142 according to other embodiments. According to these embodiments, the back range of motion limiter 142 can be permanently or removably attached to the top side 131 of the base 130. The back range of motion limiter 142 can include a straight portion that extends up from the top side 131 of the base 130 that is in the shape of a semi-circle such that the second vertical segment 122 can fit within the straight portion. A top of the back range of motion limiter 142 can include 2 curvature pieces that extend away from the straight portion to receive and secure the second vertical segment 122. An angled portion, such as a triangular-shaped or other shapes, can extend back and away from the straight portion to provide resistance to the vertical member 120 during use. The back range of motion limiter 142 can be made of a semi-rigid or rigid material, such as but not excluding metals, metal alloys, semi-rigid plastics or rubbers, or hard plastics. The back range of motion limiter 142 can have a height that extends up from the base 130 and can be in a range of 1 to 10 inches.

[0031] The first and second sides 144 / 145 of the connector 140 can also include a plurality of matching pairs of holes defining front range of motion limiters 143. The corresponding matching pair of holes of the front range of motion limiters 143 can range from 1 to 7, for example, and can have a spacing pattern along the first and second sides 144 / 145, for example as shown in FIGS. 4, 5, and 7. As used herein, the phrase “matching pair” means the first side 144 includes a hole at a specific location and the second side 145 includes a corresponding hole that matches the specific location of the hole on the first side 144. In this manner, the matching pair of holes are spatially aligned with each other to receive a second pin 147. The second pin 147 can be placed within any of the matching pair of holes of the front range of motion limiters 143. Preferably, all the matching pair of holes for the back range of motion limiter 142 and the front range of motion limiters 143 have the same diameter; and the first pin 146 and the second pin 147 have the same outer diameter. In this manner, either pin 146 / 147 can be inserted into any of the matching pair of holes. The embodiments discussed above related to the first pin 146, the knob 148, and the cotter or spring cotter pin 149, as well as the method of inserting the first pin 146 applies equally to the second pin 147 and front range of motion limiters 143 without the need to repeat those embodiments again.

[0032] The second end of the second vertical segment 122 of the vertical member 120 is positioned between the first pin 146 and the second pin 147 on the inside of the first and second sides 144 / 145. A distance D is created between the first pin 146 and the second pin 147, which is also created between the back range of motion limiter 142 and the front range of motion limiters 143, as shown in FIG. 6. The vertical member 120 and the handlebar 110 arcs forwards and backwards between the back range of motion limiter 142 and the front range of motion limiter 143. As shown in FIG. 7, the distance D can be increased or decreased depending on where a user inserts the first pin 146 into the back range of motion limiters 142 and inserts the second pin 147 into the front range of motion limiters 143. By way of example and as shown, there can be 2 matching pair of holes for the back range of motion limiter 142 and 5 matching pair of holes for the front range of motion limiters 143. Accordingly, a user can insert the second pin 147 into the top left matching pair of holes for the front range of motion limiters 143 and the first pin 146 into the topmost matching pair of holes for the back range of motion limiter 142 which creates distance D1. A user can also insert the second pin 147 into the bottommost matching pair of holes for the front range of motion limiters 143 and the first pin 146 into the bottom right matching pair of holes for the back range of motion limiter 142 which creates distance D4. The amount of arc, for example as shown in FIGS. 4, 7, and 9, during use can be determined based on the distance D. By way of example, if a user desires more arc, then the user can insert the first and second pins 146 / 147 to create distance D2, which is the greatest distance shown. If less arc is desired, then the user can insert the first and second pins 146 / 147 to create distance D3, which is a shorter distance than Dz. Accordingly, the device 100 is adjustable to provide as much arc as desired or needed for a particular user. A greater distance D may be desirable if the user is using the device 100 in a seated position to perform stretching and strengthening exercises for the shoulders, while a shorter distance D may be desirable if the user is using the device 100 for stretching and strengthening exercises for the leg muscles, hip muscles, etc. to transition between a seated position to a standing position and vice versa. Moreover, as a user advances in stretching exercises, the distance D can be increased to provide a greater stretch.

[0033] The muscle stretching and strengthening device 100 includes a base 130. With reference to example FIGS. 4, 5, and 9, the base 130 has a top side 131 and a bottom side 132. The top side 131 can be flat with an upper surface. “Flat” means that a plane of the side is 180° with no curvature. The bottom side 132 can also be flat and have a bottom surface. A user can place their feet on the top side 131 of the base 130 during use, for example as shown in FIG. 9. All or a portion of the upper surface of the base 130 can include a traction control component 133, preferably located on the base where a user's feet will be placed. As shown in FIG. 5, the upper surface of the top side 131 of the base 130 can be partially or wholly covered with a slip resistant material that serves as the traction control component 133. Sanding, etching, or scoring can also be used instead of the slip resistant material. As shown in FIG. 10, a plurality of anti-slip grooves or channels or raised sections can be used as the traction control component 133. In this manner, a user can obtain better traction during use and the traction control component inhibits or prevents their feet from slipping off the base 130 during use. The bottom side 132 of the base 130 can also be wholly or partially covered in a slip-resistant material and / or cushioning. This also can help prevent or inhibit the base 130 from slipping out or moving from underneath the user during use.

[0034] The base 130 can have a mostly rectangular or oval shape and include straight edges, curved edges, or combinations thereof. The base 130 has a perimeter and a length and a depth. The “length” is defined as a line along the plane of the base 130 that is perpendicular to a line along a user's feet spanning from the heels to toes. The “depth” is defined as a line along the plane of the base 130 that is parallel to a line along a user's feet spanning from the heels to toes. The depth can be different along the length of the base 130, for example if there are curved edges like shown in FIG. 5. The length can range from 10 to 36 inches, for example. The depth can range from 4 to 20 inches, for example. According to any of the embodiments, the length of the base 130 is greater than the depth of the base 130. The length and depth can be selected such that a user has a large enough surface area to place their feet during use and to maintain control and provide stability during use. By way of example, the length can be selected such that the entire width of a user's feet can be placed directly on the top side 131 of the base 130 without overhanging the outside edges of the base 130. By way of another example, the depth can be selected such that at least ⅓, ½, or the entire length of a user's feet can be placed directly on the top side 131 of the base 130. A larger surface area can allow more of the bottoms of a user's feet to be placed on the base 130, which can provide more stability and control over the device 100 during use.

[0035] The various components of the device 100 can be made from rigid materials, including but not limited to polymeric plastics, thermoset plastics, metals or metal alloys, fiberglass, or carbon fiber. As used herein, the term “metal alloy” means a mixture of two or more elements, wherein at least one of the elements is a metal. The other element(s) can be a non-metal or a different metal. An example of a metal and non-metal alloy is steel, comprising the metal element iron and the non-metal element carbon. An example of a metal and metal alloy is bronze, comprising the metallic elements copper and tin. As used herein, the term “metal” and all grammatical variations thereof means any substance that comprises a metal, which includes pure metals and metal alloys.

[0036] Examples of plastics include but are not limited to low-density polyethylene (LDPE), high-density polyethylene (HDPE), polyethylene terephthalate (PET or PETE), polyvinyl chloride (PVC), polypropylene (PP), polystyrene (PS), high-impact polystyrene (HIPS), acrylonitrile butadiene styrene (ABS), cellulose-acetate-butyrate (Cab), polycarbonate (PC), or polyvinylidene fluoride or polyvinylidene difluoride (PVDF). Examples of metals include but are not limited to iron, aluminum, steel, carbon steel, stainless steel, zinc, lead, copper, tin, brass, nickel, and chromium. While all of the components of the device 100 (e.g., the vertical member 120, handlebar 110, and base 130) can be made from the same material (e.g., stainless steel or HDPE), it is also possible to have some of the components made from a different material than the other components. Moreover, one or more of the components can also include a reinforcing layer that is made from a material having a higher ductile or tensile strength compared to the material of the components. Preferably, a given component is made from the same material. For example, the first vertical segment 121 and the second vertical segment 122 of the vertical member 120 are preferably made from the same material.

[0037] The handlebar 110 and vertical member 120 can each be cylindrical in shape having a circular cross-section or other geometric cross-sectional shapes, such as a triangle, square, or rectangle. The first vertical segment 121, second vertical segment 122 and handlebar 110 can have the same or different diameters ranging from 0.25 to 4 inches (0.63 to 10 cm). Additionally, the second vertical segment 122 can be hollow, while the first vertical segment 121 and the handlebar 110 can be solid. The diameter of the segments 121 / 122 and the handlebar 110 can be selected based on whether the component is solid or hollow and to provide structural integrity to the device 100 during use. By way of example, for solid components, the diameter may only need to be 0.25 inches to provide structural integrity; while for hollow components, the diameter may need to be 4 inches to provide structural integrity.

[0038] The device 100 can be used to stretch and / or strengthen a variety of muscles. Methods can include using the device 100 to stretch and / or strengthen the variety of muscles. A user can stand on the top side 131 of the base 130 when in a standing position or rest their feet upon on the top side 131 when in a seated position. When the user grips the handlebar 110, a mechanical gusset is formed to create support and leverage assistance to the user. As the user leans forward, the arc of the handlebar 110 in relation to the base 130 increases, which results in tension being created in the vertical member 120. The tension is translated throughout some or all of the upper arms, shoulders, torso, and legs; and thus, allows the muscles to be stretched and strengthened. With continued use, improved flexibility and strength can occur. Preferably, a user remains in a seated position to stretch the muscles in the arms, back, and shoulders.

[0039] The device 100 can also be used to strengthen the muscles in the leg, hips, and other areas of the body. According to this aspect, a user can begin in a seated position and place their hands on the handlebar 110 and their feet on the top side 131 of the base 130. The user can then bend their upper body slightly forward which increases the arc of the handlebar 110 in relation to the base 130 and use their legs to stand up. The tension created when the arc is increased also acts as a support mechanism that assists the user, so the user has proper balance and proper body mechanics when standing. The user can then sit back down from the standing position while maintaining a grip on the handlebar, which decreases the arc and brings the handlebar 110 back closer to the user's body. With continued use by sitting and then standing, the user's muscles can be strengthened. The connector 140 is critical in providing normal biomechanical movement so the user develops functional strength and flexibility. Because a user has more control over the device compared to other current designs, the user can feel more confident and safer without fear of unintentional injury, which allows the user to be more relaxed during use. Because the user is more relaxed, undesirable tension in the user's muscles and joints for example is significantly decreased. This allows for normal biomechanical movement and reduced risk of injury compared to being tense if using other current devices.

[0040] Another significant advantage to the device 100 is the safety features, which include the back range of motion limiter 142 and the front range of motion limiters 143. These safety features substantially inhibit or prevent accidental injury to the user when using the device because there is a very low possibility that the vertical member 120 and / or the handlebar 110 uncontrollably arc too much and make contact with a part of the user's body. Another significant advantage to the device 100 is that a user can select and adjust the amount of arc and / or rotation of the vertical member 120 and handlebar 110 by selecting a desired distance D between the back range of motion limiter 142 and front range of motion limiters 143. By way of example, a user just beginning to use the device 100 for stretching and strengthening exercises can decrease the distance D by selecting which matching pair of holes to place the first and second pins 146 / 147. With continued use and as the user advances with the exercises, a deeper stretch may be needed. Thus, the user can then increase the distance D so a deeper stretch can be achieved. This versatility allows a user to safely increase the amount of stretching and strengthening of their muscles. Thus, the muscle stretching and strengthening device 100 has many advantages over current designs intended for use in the home or other settings outside of a physical therapist's location, a gym, nursing home, or doctor's office.

[0041] Therefore, the apparatus, methods, and systems of the present disclosure are well adapted to attain the ends and advantages mentioned as well as those that are inherent therein. The particular embodiments disclosed above are illustrative only, as the present disclosure may be modified and practiced in different but equivalent manners apparent to those skilled in the art having the benefit of the teachings herein. Furthermore, no limitations are intended to the details of construction or design herein shown, other than as described in the claims below. It is, therefore, evident that the particular illustrative embodiments disclosed above may be altered or modified and all such variations are considered within the scope and spirit of the present disclosure.

[0042] As used herein, the words “comprise,”“have,”“include,” and all grammatical variations thereof are each intended to have an open, non-limiting meaning that does not exclude additional elements or steps. While the apparatus, systems, and methods are described in terms of “comprising,”“containing,” or “including” various components or steps, the apparatus, systems, and methods also can “consist essentially of” or “consist of” the various components and steps. It should also be understood that, as used herein, “first,”“second,” and “third,” are assigned arbitrarily and are merely intended to differentiate between two or more ends, vertical segments, etc., as the case may be, and does not indicate any sequence. Furthermore, it is to be understood that the mere use of the word “first” does not require that there be any “second,” and the mere use of the word “second” does not require that there be any “third,” etc.

[0043] Whenever a numerical range with a lower limit and an upper limit is disclosed, any number and any included range falling within the range is specifically disclosed. In particular, every range of values (of the form, “from about a to about b,” or, equivalently, “from approximately a to b,” or, equivalently, “from approximately a-b”) disclosed herein is to be understood to set forth every number and range encompassed within the broader range of values. Also, the terms in the claims have their plain, ordinary meaning unless otherwise explicitly and clearly defined by the patentee. Moreover, the indefinite articles “a” or “an,” as used in the claims, are defined herein to mean one or more than one of the element that it introduces. If there is any conflict in the usages of a word or term in this specification and one or more patent(s) or other documents that may be incorporated herein by reference, the definitions that are consistent with this specification should be adopted.

Examples

Embodiment Construction

[0014]Stretching and exercising the muscles, joints, tendons, etc. in the shoulder region and other muscles in the torso may be desirable or necessary for a variety of reasons. For example, stretching exercises are frequently recommended if an injury occurs to evaluate whether surgery is needed. Oftentimes and before a surgery is scheduled, a patient may be ordered to do 8 to 12 weeks of physical therapy to determine if surgery can be avoided. Stretching exercises can also be beneficial before surgery, which is called pre-habilitation. Post-operative exercises are also frequently ordered to help stretch and strengthen muscles after surgery.

[0015]There are other reasons why a person can benefit from stretching and strengthening exercises. For example, many people suffer from a condition known as frozen shoulder. Frozen shoulder, or adhesive capsulitis, is a condition characterized by pain and stiffness in the shoulder joint, which gradually limits movement. It typically develops in t...

Claims

1. A muscle stretching and strengthening device comprising:a height-adjustable vertical member;a handlebar connected to a first end of the vertical member;a base; anda connector, wherein the connector indirectly connects a second end of the vertical member to the base, wherein the connector comprises:a back range of motion limiter; anda front range of motion limiter,wherein the vertical member and the handlebar arcs forwards and backwards between the back range of motion limiter and the front range of motion limiter to stretch and strengthen the muscles.

2. The muscle stretching and strengthening device according to claim 1, wherein the vertical member comprises:a first vertical segment comprising a first end and a second end; anda second vertical segment comprising a first end and a second end.

3. The muscle stretching and strengthening device according to claim 2, wherein the vertical member is telescoping, wherein the second vertical segment is hollow, wherein the second end of the first vertical segment is insertable into the first end of the second vertical segment, and wherein the first vertical segment is movable up and down within the second vertical segment.

4. The muscle stretching and strengthening device according to claim 2, further comprising a locking mechanism that maintains a length of the vertical member at a desired height after adjustment.

5. The muscle stretching and strengthening device according to claim 4, wherein the locking mechanism comprises a plurality of holes that penetrate from an outside through to an inside of the second vertical segment and a depressible locking protrusion extending from an outside of the first vertical segment, wherein the depressible locking protrusion has dimensions such that the depressible locking protrusion fits within any one of the plurality of holes.

6. The muscle stretching and strengthening device according to claim 4, wherein the locking mechanism is a tension screw lock located at the first end of the second vertical segment.

7. The muscle stretching and strengthening device according to claim 2, wherein the second end of the second vertical segment is indirectly connected to a central location of the base via the connector.

8. The muscle stretching and strengthening device according to claim 2, wherein a middle portion of the handlebar is connected to the first end of the first vertical segment.

9. The muscle stretching and strengthening device according to claim 1, wherein the handlebar does not tilt or rotate independently around a longitudinal axis of the vertical member.

10. The muscle stretching and strengthening device according to claim 1, wherein the handlebar comprises a first end, a middle portion, and a second end, and wherein the handlebar is straight along a line extending from the first end, through the middle portion, to the second end.

11. The muscle stretching and strengthening device according to claim 1, wherein the handlebar comprises a first end, a middle portion, and a second end, wherein the handlebar comprises a straight middle portion, and wherein the first end and the second end extend from the middle portion at an angle.

12. The muscle stretching and strengthening device according to claim 1, wherein the handlebar further comprises a padding, a slip-resistant material, or sanding or etching located partially or wholly around the handlebar.

13. The muscle stretching and strengthening device according to claim 1, wherein the connector comprises a first side and a second side.

14. The muscle stretching and strengthening device according to claim 13, wherein the first side and the second side are rotatable around the base, and wherein rotation of the first side and the second side causes the vertical member and the handlebar to rotate around a longitudinal axis of the vertical member in relation to a plane of the base.

15. The muscle stretching and strengthening device according to claim 13, wherein both of the first side and the second side comprise one or more matching pairs of holes defining the back range of motion limiter and the front range of motion limiter.

16. The muscle stretching and strengthening device according to claim 15, further comprising:a first pin, wherein the first pin is inserted through the one or more matching pairs of holes defining the back range of motion limiter; anda second pin, wherein the second pin is inserted through the one or more matching pairs of holes defining the front range of motion limiter,wherein the first pin and the second pin create a physical stop for the vertical member from arcing beyond the first pin and the second pin.

17. The muscle stretching and strengthening device according to claim 16, wherein a distance is created between the first pin and the second pin, wherein the vertical member and the handlebar arc within the distance, and wherein the distance is adjustable.

18. The muscle stretching and strengthening device according to claim 16, wherein the first pin and the second pin are a clevis pin, and wherein a second end of the first pin and the second pin comprise a hole that traverses entirely through the second end of the first pin and the second pin.

19. The muscle stretching and strengthening device according to claim 18, further comprising a cotter pin or a spring cotter pin that is insertable through the hole to prevent the first pin and the second pin from undesirably slipping out of the matching pair of holes during use.

20. The muscle stretching and strengthening device according to claim 1, wherein the back range of motion limiter is made from a rigid or semi-rigid material and comprises: a straight portion that extends up from a top side of the base having a semi-circle shape; two curvature pieces that extend away from the straight portion to receive and secure the vertical member within the straight portion; and an angled portion that extends back and away from the straight portion.

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