GYMNASTICS BALL ELEVATION TRAINING DEVICE SET FOR TRAINING THE BACK EXTRUDER MUSCLES AND USE

Description

TECHNICAL FIELD

[0001] The present invention relates to a set with multiple elevation devices for training the back extensor muscles using an exercise ball, comprising at least one exercise ball and at least two elevation training devices, each of which can be stored on the ground and each of which has a ring-shaped exercise ball holder. Furthermore, the present invention relates to corresponding uses of device components for providing such a set. In particular, the invention relates to a set or a device according to the preamble of the independent claim. BACKGROUND OF THE INVENTION

[0002] Balls are frequently used in gymnastics, physical exercises, and athletic training. The balls vary in size and inflate to varying degrees depending on body size and weight and the intended exercise. It has been shown that, for many exercises, a secure and precise ball position is advantageous, at least temporarily, and especially the ball's height is as precise as possible.

[0003] According to the state of the art, exercise balls of various sizes / circumferences are used for performing a wide variety of fitness and health exercises. However, particularly for the back extensor muscles, the exercise ball devices available to date disadvantageously limit the range of motion due to their height, particularly depending on their circumference, particularly for exercises that are performed lying on the exercise ball in a prone position. It has been shown that many exercises cannot be performed from the maximum forward bend of the upper body; rather, the exerciser can only bend over the exercise ball until their hands and / or legs touch the floor; in particular, a backward extension movement cannot be assumed from a full forward bend.This is also disadvantageous from a sports physiological perspective, particularly due to a limited range of motion and insufficient muscular work. Therefore, there is interest in improved exercise ball devices.

[0004] An example is publication DE 20 2018 101 669 U1, which describes a type of pipe section on which a ball can be elevated, and which is suitable, for example, as a step for step gymnastics exercises. Other elevated ball supports are known, for example, from the following publications, which, however, do not relate to the inventive application described here: US 6,730,005 B1, US 6,447,070 B1, US 2012 / 0220431 A1, US 6,461,284 B1, US 9,084,909 B1, US 2016 / 0236042 A1, US 2013 / 154333 A1, and WO 2020 / 096276 A1.

[0005] Based on the state of the art, there is a need for gymnastics and sports exercise equipment by means of which the training of the back extensor muscles in particular can be carried out more precisely, more specifically and more effectively, especially with regard to more advantageous training methods in the prone position for the training of the back extensor muscles. SUMMARY OF THE INVENTION

[0006] The objective is to provide a device for gymnastics and sports exercises, particularly for training the back extensor muscles, using at least one ball. This ensures good freedom of movement during training and a favorable range of motion for the muscular exercises, particularly while maintaining a high level of safety. The objective is also to design the device in such a way that variations in the ball size and / or the size of the person exercising and / or the type of exercise can be easily and quickly compensated for, particularly without compromising the safety of the person exercising.Last but not least, it is the task of designing the device in such a way that the device can be provided comparatively inexpensively and, if possible, can be easily moved / repositioned manually in a weight-optimized manner and is equally suitable for both professional and leisure use and, if possible, can also be used by a large number of different people, in particular in the event that the device is to be purchased, for example, for a whole family at home or for a professional area for a group of people who are comparatively inhomogeneous in terms of body size.

[0007] This object is achieved by a gymnastic ball elevation training device set ("set") according to claim 1 and by uses according to the subordinate use claims. Advantageous developments of the invention are explained in the respective subclaims. The features of the exemplary embodiments described below can be combined with one another unless explicitly stated otherwise.

[0008] Provided is a gymnastic ball elevated training device set for training the back extensor muscles, comprising at least one gymnastic ball and at least two elevated training devices, each of which can be stored on the ground and each of which has a ring-shaped gymnastic ball holder; According to the invention, it is proposed that the elevated training devices have different heights and provide the respective gymnastic ball holder at an individual training height in such a way that when the ball is placed on an individually selected / selectable gymnastic ball holder (orWhen the exercise ball is placed on the elevated training device (selected individually for a particular exercise), a person training in a prone position on the exercise ball (i.e., at least one of the individually selectable training heights) is provided with a training clearance relative to the ground for an upper body or lower body bending angle relative to the horizontal plane of at least 45°, preferably at least 60°, more preferably at least 70° for training the back extensor muscles. This allows, on the one hand, a very individual adjustment of the training height, and, on the other hand, very efficient training using one or more elevated training devices that can be provided comparatively inexpensively and with reduced weight. The training height can be adjusted quickly and easily, especially without any physical exertion, even with the same ball size.

[0009] In particular, the user's (training person's) pelvis can rest on the ball, and the upper body and legs can reach an upper or lower body bending angle of up to 90° (downward), depending on the relative height of the raised support relative to the floor. In other words: The device described here is designed to accommodate the user in a prone position, with the entire body weight being absorbed and supported.

[0010] The term "gymnastic ball elevation training device set" clarifies that the set consists of several elevation training devices for physical training with the aid of an (exercise) ball. The generic term "gymnastic ball elevation training device set" was deliberately chosen instead of "gymnastic ball elevation training set" because the present invention essentially relates to the elevation devices and their coordination with one another to provide the elevation function for training with a ball. In this respect, the term also clarifies that, although the set also includes an exercise ball, the type and individual design of the ball is not the primary focus, but rather that the invention can be applied to a wide variety of (exercise) balls.In the following, the abbreviated term "set" is sometimes used for the exercise ball elevation training device set according to the invention. The term "exercise ball elevation training device set" can therefore also be explained or understood as follows: a set comprising several devices, each for elevating an (exercise) ball during training.

[0011] The "training height" specified by the respective elevated support device is understood to be the relative height of the ball's contact point (or the corresponding, particularly annular, contact surface) relative to the ground / floor. Accordingly, the height of the person training on the ball deviates upwards, especially when the ball is highly inflated, neglecting any compression of the ball when the person rests on it. Depending on the compressibility of the ball and the person's weight (and also depending on the ambient air pressure), the actual training height may be several percent lower.

[0012] In other words, the invention relates to gymnastics and sports training apparatus for elevated storage / positioning of exercise balls during their use by exercisers, and thus also for elevated storage / positioning of the respective exerciser on the ball.

[0013] Exercise balls come in various sizes and circumferences for performing a wide variety of fitness and health exercises. Particularly for the back extensor muscles, exercise balls, due to their comparatively low height and their circumference, limit the range of motion for exercises performed while lying prone on the exercise ball. Therefore, the exercises cannot be performed from the maximum forward bend of the upper body. The exerciser can only bend over the exercise ball until their hands and / or legs touch the floor. This prevents them from performing a backward bend from a full forward bend. From a sports physiological perspective, this also leads to a disadvantageously reduced range of motion and reduced muscular work. The present invention provides a simple and quite pragmatic remedy for this.

[0014] According to the invention, commercially available balls, especially exercise balls, can be safely positioned relatively high in the room and stored for training, allowing the trainee to assume a maximum forward bend position. This also achieves the maximum possible range of motion and increased muscular work from a sports physiological perspective. The increase in the active range of motion and the increased muscular activity lead to increased muscle contractility and thus to an optimization of the training stimulus. In addition, additional resistance bands can be attached to optionally provided fastening rings or similar attachment devices on the ball holder for further progression of the training, particularly for varying the exercise intensity.To accommodate different body sizes, the set preferably includes three devices, each in three different sizes, with different heights, widths, and diameters. The ball holder preferably has a rounded profile, especially to ensure the ball can be stored sustainably and gently, even with a large body weight of the person exercising.

[0015] The areas of application are in particular: fitness, therapy and health facilities such as sports clubs that work with exercise balls as part of training and / or therapeutic approaches.

[0016] For higher and safer positioning of commercially available exercise balls in the room, the following features can also be implemented according to the invention: preferably cylindrical and / or conical stand construction (in particular with a strut / rod-like conical intermediate structure without built-in components with an empty, defined internal volume); positioning and fixing options for an exercise ball on the ball holder, which is in particular designed as a ring; coverage of several size ranges for different circumferences / diameters of the exercise balls that can be used, in particular depending on the size and inflation pressure of the respective exercise ball and the body weight of the person exercising; optionally: fastening rings for attaching resistance bands to the stand construction, in particular to the ball holder.Stackability of at least three devices in three sizes, in particular the ability to be arranged inside each other when positioned on the floor to save space for storage (when using the largest device in the stack, the smaller devices can optionally remain inside the largest device, even during training, which further simplifies / speeds up handling); optional: adjustability of the size or circumference of the ball holder, in particular by means of tensioning straps and / or locking clamps with different length fixations, for optional fine adjustment of the depth at which a ball is inserted into the device, and thus also even more precise fine adjustment of the training height.);

[0017] Side note: Personified terms, unless formulated in the neuter, can refer to all genders within the scope of this disclosure.

[0018] According to one embodiment, the set comprises a first and a second elevated training device and optionally at least one further elevated training device, wherein the elevated training devices each have a conical (narrowing towards the top) outer contour and an annular upper side and a circular or annular lower side (in particular defined by an annular support) and a strut / rod-like intermediate structure between the upper and lower sides, in particular with four struts. This provides not only a simple structure and easy handling, especially when stacking the devices, but also good stability relative to the ground, especially when using comparatively large exercise balls by comparatively heavy persons. The angle of the conicity is, for example, 10-20°.

[0019] According to one embodiment, the height-adjustable training devices are scaled in size such that they can be stacked or completely nested, in particular scaled by a factor of 1.1 to 1.3, especially when each device is positioned on the ground. This also provides one of the prerequisites for implementing the size variation concept according to the invention without the disadvantageous need for a large amount of space.

[0020] According to one embodiment, the elevated training devices are each also scaled in terms of diameter, in particular by a factor of 1.1 to 1.3, in particular such that the elevated training devices can be stored or stored / stored one inside the other (inside each other). This also makes it possible to provide the entire set with the space required by only the largest device (all devices can be stored within the internal volume bounded by the envelope / surface of the largest device).

[0021] According to one embodiment, the exercise ball holder of at least one of the elevated training devices defines the corresponding individual training height in such a way that the training freedom relative to the ground is provided for an upper body or lower body bending angle relative to the horizontal plane of up to 90° for training the back extensor muscles. Such a large freedom of movement for training in a prone position also offers the advantage that the upper body (or at least the arms) and / or the legs can be completely relaxed before reactivation of the muscles for moving back upwards occurs. This allows for further variations both in terms of the type of exercise and the movement path, making training even more versatile and efficient.

[0022] According to one embodiment, the individual training heights defined by the ball holders are in the range from 55 cm to 95 cm, in particular in the range from 60 cm to 90 cm, for example, with three or four increments (e.g., in 10 cm increments). According to one embodiment, the respective ball holder is arranged at a first height in the range from 60 to 70 cm, or at a second height in the range from 70 to 80 cm, or at a third height in the range from 80 to 90 cm. This makes it possible to cover a wide range of training heights for numerous applications and people of different builds.

[0023] According to one embodiment, the (inner) diameter of the respective ball holder is in the range of 25 cm to 65 cm, in particular in the range of 30 cm to 60 cm, for example, in three or four increments (e.g., in 10 cm increments). This also allows for comparatively large variations in the balls that can be used.

[0024] According to one embodiment, the diameter of one or more circular or ring-shaped supports of the respective elevated training device is in the range from 55 cm to 95 cm, in particular in the range from 60 cm to 90 cm, for example in three or four increments (e.g., in 10 cm increments). This allows the respective device to be securely supported on the floor even with a comparatively large ball support, in particular by observing a diameter ratio between the ball support and the support such that the entire construction has a conicity of at least 10°. The ball preferably immerses at least approximately 25% of its diameter into the ball support. This ensures sufficiently stable support on the device and also advantageous compression behavior of the ball (particularly with ring-shaped, full-circumference support).

[0025] According to one embodiment, size / diameter adjustment means (e.g., comprising a tensioning strap and / or a locking clamp) are provided on the respective ball holder for adjusting the diameter of the ball holder, in particular for a diameter variation of at least 5%. This allows for further variations, in particular depending on the weight of the person exercising and the inflation pressure in the ball. A fine adjustment option in the range of approximately 5% of the diameter has proven sufficient. Depending on the ring diameter, a set of several exercise ball elevation training devices thus allows diameter variations in the range of approximately 1.5 to 2 cm, 2 to 2.5 cm, or 2.5 to 3 cm. These variations are sufficiently precise and varied for optimized (possibly user-specific) fixation and training height variation or adjustment.

[0026] According to one embodiment, fastening means, in particular fastening rings / eyelets, for resistance bands that can be arranged around the exercise ball are provided on the respective ball holder, with the set preferably comprising at least one resistance band. Such fastening means not least expand the training options and can also secure the storage / arrangement of the ball on the respective device.

[0027] According to one embodiment, an individual elevated training device has a maximum weight of 3 kg, preferably a maximum weight of 2 kg, with all elevated training devices of the set together (especially with three or four elevated training devices) having a maximum weight of 10 kg, preferably a maximum weight of 6 kg. This can also ensure easy handling when setting up and storing the devices or the set, in particular without straining the back.

[0028] According to one embodiment, the material of the structurally rigid components of the respective elevated training device (in particular the mount, support, and struts) is metal, in particular provided as a welded construction consisting at least of the mount, support, and struts components. This also provides good stability at reasonable material costs. The structurally rigid construction can be constructed from comparatively thin struts and rings, which also allows for cost advantages, especially since individual size variations can be provided from standardized material units or profiles.

[0029] According to one embodiment, the maximum load capacity of the respective elevated training device is adapted to the maximum load capacity of the corresponding exercise ball in the set or is designed to correspond thereto, preferably with a safety factor included. This also prevents overloading of the respective device.

[0030] According to one embodiment, the set, when stacked one inside the other, has a space requirement (height and footprint) of only the largest elevated training device, with the additional elevated training devices each in a nested arrangement within an envelope around the next largest elevated training device (or within an envelope defined by the next largest elevated training device, with a preferably conical geometry of the enclosed internal volume). This provides, not least, optimal use of space and greatly minimized space / space requirements, whether for private use at home or for professional applications, especially in larger quantities.

[0031] According to one embodiment, the respective elevated training device, when used as intended, stores the ball at a training height that is at least 0.5 times, preferably at least 0.7 times, higher than the ball diameter (ratio of height difference Δz to ball diameter), in particular at an immersion depth of at least approximately 25% of the ball diameter into the ball rest.

[0032] The set can optionally include several balls of different sizes, so that, for example, an exercise can be provided in which the exerciser's sense of balance and fine motor skills can be trained using a comparatively large ball on a comparatively small elevated training device. Conversely, an exercise specifically for strength training can be provided using a comparatively small ball on a comparatively large / high elevated training device, for example, using additional weights on the exerciser's limbs.

[0033] The above-mentioned object is also achieved by using a ring-shaped exercise ball holder and a circular or ring-shaped support and a plurality of struts for connecting the exercise ball holder and the support of a first and a second elevated training device and optionally also at least one further elevated training device of an exercise ball elevated training device set, wherein the exercise ball holder and the support and the struts provide a construction scalable in height and diameter for defining a respective individual training height for a training clearance relative to the ground for an upper body or lower body bending angle relative to the horizontal plane of at least 45°, preferably at least 60°, more preferably at least 70° for training the back extensor muscles,The individual elevated training devices in the set are provided in a size-matched scale and can be used individually, in particular for providing a gymnastic ball elevated training device set described above. This allows the aforementioned advantages to be realized, particularly with regard to providing an easily scalable and cost-optimized, robust construction.

[0034] The above-mentioned object is also achieved by using at least one ring-shaped exercise ball holder and at least one circular or ring-shaped support and a plurality of struts for providing a high-position training device and optionally also at least one further high-position training device of an exercise ball high-position training device set, wherein the (respective) exercise ball holder and the (respective) support and the struts provide a construction scalable in height and diameter for defining a respective individual training height for a training clearance relative to the ground for an upper body or lower body bending angle relative to the horizontal plane of at least 45°, preferably at least 60°, more preferably at least 70° for training the back extensor muscles,The (respective) exercise ball holder and the (respective) circular or ring-shaped support and the (respective) struts are connected to one another in such a way that the (respective) elevated training device is scalable in size and can be provided in a set for at least two different training heights, in particular for providing an exercise ball elevated training device set as described above, comprising at least two or three nestable or nestable elevated training devices. This allows the aforementioned advantages to be realized, in particular with regard to a structural design that is as simple and robust as possible and easily scalable, which can also advantageously be characterized by the lowest possible weight.

[0035] The aforementioned object is also achieved by a gymnastic ball elevation training device set described above, in which the respective elevation training device is provided / manufactured by welding a metallic ball holder (in particular ring-shaped) to metallic struts (in particular rod-like) and by welding these struts to a metallic support (in particular ring-shaped) in such a way that a conical welded construction consisting at least of the components holder, support, and struts is created, in particular with a conicity of at least 10-15° (tapering upwards). This allows the aforementioned advantages to be realized, in particular with regard to providing the set in a cost-effective manner in a robust condition for safe and uncomplicated use, even by private users.

[0036] Summary: When training the back extensor muscles using balls, especially in the prone position on the ball, the difficulty has so far been to provide a device that is as easy to handle and as inexpensive to provide as possible, by means of which an adequate training height can be provided for a large number of different people and also for different types of exercises on the ball.The present invention provides a set of exercise ball elevation training devices designed for training the back extensor muscles, comprising at least one exercise ball and at least two elevation training devices, each of which can be supported on the ground and each of which has a ring-shaped exercise ball holder. The elevation training devices have different heights and each provide the respective exercise ball holder at an individual training height such that the largest possible upper body or lower body bending angle relative to the horizontal plane can be achieved. This also makes it possible to improve training, in particular to make it more effective / efficient. The individual devices of the set can be easily scaled for different applications and, for example, also individually combined to form the respective set.For example, only three or four standard sizes of fixtures are provided, and a set of two or three fixtures includes only a selection of these standard sizes. This also provides even greater cost efficiency. SHORT DESCRIPTION OF THE CHARACTERS

[0037] The invention is described in more detail in the following drawing figures. Reference numbers not explicitly described in a particular drawing figure refer to the other drawing figures. They show: Figure 1 in a perspective side view in a schematic representation of an elevated training device of a gymnastic ball elevated training device set ("set") according to an embodiment; Figure 2 in a perspective side view a set according to an embodiment; Figure 3in a perspective side view, a high-level training device of a set according to an embodiment, wherein a training person trains on a ball stored on the device at the training height; DETAILED DESCRIPTION OF THE FIGURES

[0038] The invention will first be explained with general reference to all reference numerals and figures. Special features or individual aspects of the present invention, or aspects that are clearly visible / depictable in the respective figure, will be addressed individually in connection with the respective figure.

[0039] A gym ball elevated training device set 10 ("set") comprises at least two elevated training devices, namely a first elevated training device 11 and a second elevated training device 12, and optionally also at least one further (third) elevated training device 13. The respective elevated training device has a comparatively slim and simple structural design, which is particularly advantageous with regard to handling and cost-effectiveness: A gym ball 1 can be mounted and secured on a ring-shaped gym ball holder 14 (in particular comprising a ring 14.1, in particular adjustable in size) and supported on a circular or annular support 16 (or support, in particular comprising a ring 16.1) on the floor G via a strut / rod-like intermediate structure 15 (in particular comprising four struts 15.1).As a result, the ball 1 can be provided for a training person P in an advantageously high position for training (in particular, the height difference Δz of the elevated position of the exercise ball relative to the ground), whereby a comparatively large training freedom T can be provided for a comparatively long training movement of the upper body and / or the legs. The contact point of the training person on the ball is located at a height z1, which approximately corresponds to the training height z10 plus the ball diameter minus the immersion depth (neglecting any compression of the ball). The exercise ball 1 can be stored at the training height z10 (or at the height of the contact point of the ball on the device 11) during training, wherein the ball 1 can optionally also be fastened by means of one or more resistance bands 3 guided by fastening means 18 (in particular fastening rings / eyelets).

[0040] Optionally, reinforcing struts or ring segments 19 can be provided to further increase stability. Thanks to the redundantly provided devices 11, 12, 13 of set 10, the training height z10 can be varied very easily by selecting a different one of the devices. Optionally, fine adjustment can also be performed using size / diameter adjustment means 17, which are preferably provided on the exercise ball holder 14 and include, for example, a tensioning strap and / or a locking clamp. This also allows for fine adjustment of the ball's immersion depth.

[0041] The individual devices 11, 12, 13 can be stored one inside the other, in particular thanks to a free internal or enclosed volume V (in particular conical internal volume of the respective device), as in Fig. 2 This also minimizes space requirements.

[0042] Advantageously, the construction 15 has an opening angle or a conicity β relative to the vertical (z-direction), whereby good stability can be ensured even during comparatively dynamic exercises.

[0043] The following directional and coordinate specifications facilitate understanding: radial direction r, longitudinal direction x, width direction y perpendicular to the longitudinal direction, vertical direction z, and the horizontal plane can be described with the reference symbol xy (plane spanned by the coordinate axes x and y). The exercise ball holder 14 is preferably aligned / arranged in a horizontal plane extending parallel to the ground.

[0044] Thanks to the comparatively high training height z10, a comparatively large upper body or lower body flexion angle α (angle of elevation or angle of depth) relative to the horizontal plane or relative to the floor can be achieved. This usable flexion angle α is advantageously at least 60-85°; the training person can therefore move the upper body and / or legs almost completely downwards without touching the floor; the training person can therefore perform exercises (particularly for the back extensor muscles) that would not be possible with the ball resting on the floor or just slightly above it. Advantageously, the training height z10 is at least three-quarters as high as the ball diameter; optionally, the training person's support height z1 can therefore be at least doubled.

[0045] In Fig. 1a high-position training device 11 with a ball 1 placed thereon is shown; the conicity β of the intermediate structure 15 ensures stable positioning relative to the ground G.

[0046] In Fig. 2 is shown in set 10 with three devices 11, 12, and 13. The devices can be nested, as they are scaled accordingly in size (height and diameter); all devices can be stored on the floor and therefore do not need to be stacked, which also makes it possible to use the largest device 11 for training without requiring any modifications or handling of the other devices. At least one ball 1 (not shown) can also be provided as part of set 10.

[0047] In Fig. 3 a person P training can be seen; the usable flexion angle α is, for example, at least 50°. List of reference symbols

[0048] 1 Exercise ball 3 Resistance band 10 Exercise ball elevation training device set ("Set") 11 First elevation training device 12 Second elevation training device 13 Further (third) elevation training device 14 Ring-shaped exercise ball holder 14.1 Ring, in particular size-adjustable 15 Strut / rod-like intermediate construction 15.1 Strut 16 Circular or ring-shaped support or bearing 16.1 Ring 17 Size / diameter adjustment means, e.g. tensioning strap, locking clamp 18 Fastening means, in particular fastening ring / eyelet 19 Reinforcing strut or ring segment G Subsurface or floor P Training person T Training space V Internal or enclosed volume, in particular conical internal volume r Radial direction x Longitudinal direction y Width direction transverse to the longitudinal direction z Vertical direction x y Horizontal plane (plane, which is spanned by the coordinate axes x and y) z10Training height orHeight of the contact point of the ball on the respective device z1Height of the contact point of the training person on the ball ΔzHeight difference elevated position of the exercise ball relative to the ground αUpper body or lower body bending angle (height angle or depth angle) relative to the horizontal plane or relative to the floor βOpening angle / conicity relative to the vertical.

Claims

1. Gymnastic ball elevation training device set (10) configured for training the back extensor muscles, comprising at least one gymnastic ball (1) and at least two elevation training devices (11, 12, 13) which can each be placed on the ground and each have a ring-shaped gymnastic ball holder (14); characterised in that the elevation training devices (11, 12, 13) have different heights (z10) and each provide the respective gymnastic ball holder at an individual training height such that when a gymnastic ball (1) is placed on an / the individually selected / selectable gymnastic ball holder (14), for a person training in a prone position on the gymnastic ball, a training clearance (T) relative to the ground (G) is provided for an upper body or lower body bending angle (α) relative to the horizontal plane of at least 45°, for training the back extensor muscles, wherein the elevation training devices (11, 12, 13) are also scaled in terms of diameter.

2. Gymnastic ball elevation training device set according to claim 1, wherein the gymnastic ball elevation training device set (10) comprises a first and a second elevation training device and optionally at least one further elevation training device (13), wherein the elevation training devices each have a conical outer contour and a ring-shaped upper side and a circular or ring-shaped lower side and a strut / rod-like intermediate structure (15) between the upper and lower sides, in particular with four struts (15.1).

3. Gymnastic ball elevation training device set according to one of the preceding claims, wherein the elevation training devices (11, 12, 13) are scaled in size such that the elevation training devices can be stacked inside one another or arranged completely inside one another, in particular each scaled by a factor of 1.1 to 1.3, in particular when arranged on the ground.

4. Gymnastic ball elevation training device set according to one of the preceding claims, wherein the elevation training devices (11, 12, 13) are also scaled in terms of diameter, in particular each by a factor of 1.1 to 1.3, namely such that the elevation training devices can be stored or placed inside one another.

5. Gymnastic ball elevation training device set according to one of the preceding claims, wherein the gymnastic ball holder (14) of at least one of the elevation training devices defines the corresponding individual training height value in such a way that the training clearance (T) relative to the ground is provided for an upper body or lower body bending angle (α) relative to the horizontal plane of up to 90°, for training the back extensor muscles.

6. Gymnastic ball elevation training device set according to one of the preceding claims, wherein the individual training heights (z10) defined by the ball holders are in the range of 55 cm to 95 cm, in particular in the range of 60 cm to 90 cm; and / or wherein the respective ball holder (14) is arranged at a first height in the range of 60 to 70 cm or at a second height in the range of 70 to 80 cm or at a third height in the range of 80 to 90 cm; and / or wherein the inner diameter of the respective ball holder (14) is in the range of 25 cm to 65 cm, in particular in the range of 30 cm to 60 cm; and / or wherein the diameter of a / the circular or ring-shaped support (16) of the respective elevation training device (11, 12, 13) is in the range of 55 cm to 95 cm, in particular in the range of 60 cm to 90 cm.

7. Gymnastic ball elevation training device set according to one of the preceding claims, wherein size / diameter adjustment means (17) are provided on the respective ball holder (14) for adjusting the diameter of the ball holder, in particular for a diameter variation of at least 5%; and / or wherein fastening means (18), in particular fastening rings / eyes, are provided on the respective ball holder (14) for resistance bands which can be arranged around the gymnastic ball, wherein the gymnastic ball elevation training device set (10) preferably comprises at least one resistance band (3).

8. Gymnastic ball elevation training device set according to one of the preceding claims, wherein a / the single elevation training device (11, 12, 13) has a weight of at most 3 kg, preferably at most 2 kg, and wherein all elevation training devices of the set (10) together have a weight of at most 10 kg, preferably at most 6 kg.

9. Gymnastic ball elevation training device set according to one of the preceding claims, wherein the material of the structurally rigid components of the respective elevation training device (11, 12, 13) is metal, in particular provided as a welded construction consisting of a receptacle, a support and struts; and / or wherein the maximum load capacity of the respective elevation training device (11, 12, 13) is adapted to the maximum load capacity of the corresponding gymnastic ball (1) of the set (10), or is designed correspondingly.

10. Gymnastic ball elevation training device set according to one of the preceding claims, wherein the gymnastic ball elevation training device set (10), when the devices (11, 12, 13) are stacked inside one another, has a space requirement of only the largest elevation training device of the set (10), with the other elevation training devices each arranged one inside the other within an envelope surface placed around the next largest elevation training device, in particular with a conical envelope surface or conical outer contour of the respective elevation training device.

11. Gymnastic ball elevation training device set according to one of the preceding claims, wherein the gymnastic ball elevation training device set (10), when the devices (11, 12, 13) are stacked inside one another, has a base area requirement with a diameter or a longitudinal-transverse extension of at most 100 cm or at most 95 cm or at most 90 cm.

12. Gymnastic ball elevation training device set according to one of the preceding claims, wherein the respective elevation training device, when used as intended, elevates the ball (1) to a training height that is at least 0.5 times, preferably at least 0.7 times, higher than the ball diameter, in particular with a depth of immersion of at least approx. 25% of the ball diameter into the ball holder.

13. Use of a ring-shaped gymnastic ball holder (14) and a circular or ring-shaped support (16) and a plurality of struts (15.1) for connecting the gymnastic ball holder and the support of a first and a second elevation training device (11, 12), respectively, and optionally also at least one further elevation training device (13) of a gymnastic ball elevation training device set (10) comprising at least one gymnastic ball (1), wherein the gymnastic ball holder and the support and the struts have a height- and diameter-scalable design for defining a / the respective individual training height (z10) for providing a training clearance (T) relative to the ground (G) for an upper body or lower body bending angle (α) relative to the horizontal plane of at least 45°, preferably at least 60°, more preferably at least 70°, for training the back extensor muscles, wherein the individual elevation training devices (11, 12) are provided in the set in sizes that are scaled to match each other and can be used individually from each other, wherein the elevation training devices (11, 12, 13) are also scaled in terms of diameter, in particular for providing a gymnastic ball elevation training device set according to one of the preceding claims.

14. Use of a ring-shaped gymnastic ball holder (14) and a circular or ring-shaped support (16) and a plurality of struts (15.1) for providing an elevation training device (11) and optionally also at least one further elevation training device (12, 13) of a gymnastic ball elevation training device set comprising at least one gymnastic ball (1), wherein the gymnastic ball holder and the support and the struts have a height- and diameter-scalable design for defining a / the respective individual training height (z10) for providing a training clearance (T) relative to the ground (G) for an upper body or lower body bending angle (α) relative to the horizontal plane of at least 45°, preferably at least 60°, more preferably at least 70°, for training the back extensor muscles, wherein the gymnastic ball holder (14) and the circular or ring-shaped support (16) and the struts (15.1) are connected to each other in such a way that the respective elevation training device (11, 12) is scalable in size and can be provided in a set for at least two different training heights, wherein the elevation training devices (11, 12, 13) are also scaled in terms of diameter, in particular for providing a gymnastic ball elevation training device set according to one of claims 1 to 12 with at least two or three elevation training devices (11, 12, 13) which can be stacked or stored inside one another.

15. Gymnastic ball elevation training device set (10) configured for training the back extensor muscles, comprising at least one gymnastic ball (1) and at least two elevation training devices (11, 12, 13) which can each be stored on the ground and each have a ring-shaped gymnastic ball holder (14), namely a gymnastic ball elevation training device set according to one of claims 1 to 12, wherein the respective elevation training device is processed by welding a metal ball holder to metal struts, and by welding these struts to a metal support in such a way that a conical welded construction is formed, consisting at least of the components holder, support and struts, in particular with a conicity of at least 10-15°.