EP3269429A1 - Training device - Google Patents

Abstract

Exercise device (1) for increasing the mobility of a trainee, comprising: a first (2) and a second footrest (3), a guide rail (4) on which the first (2) and second footrest (3) are displaceably mounted, - A braking device (5), with which the displacement of the first (2) and second footrest (3) along the guide rail (4) can be braked, wherein - The braking device (5) has a braking element (6) which is adapted to decelerate the displacement of the first (2) and second footrest (3) along the guide rail (4) to a substantially constant speed.

Description

• eine erste und eine zweite Fußstütze,
• eine Führungsschiene, an welcher die erste und zweite Fußstütze verschieblich gelagert sind,
• eine Bremseinrichtung, mit welcher die Verschiebung der ersten und zweiten Fußstütze entlang der Führungsschiene abbremsbar ist.

The invention relates to a training device for increasing the mobility of a trainee, comprising:

• a first and a second footrest,
• a guide rail on which the first and second footrest are displaceably mounted,
• a braking device with which the displacement of the first and second footrest along the guide rail can be braked.

Such a device is in particular from the WO 0126746 A1 known.

The physical mobility or the range of motion ("ROM") is an important functional parameter that determines the performance of some athletic disciplines and limits performance for almost all others in the case of a lack of expression. Adequate mobility is not only important for sporting achievements but also for activities of daily life. For example, in advanced age, mobility may be impaired if appropriate stress stimuli such as stretching and, above all, strengthening are not exercised. Restricted mobility promotes the onset of musculoskeletal and capsular ligament injuries and inhibits coordinative skills such as the sense of balance, which often plays a crucial role in accident prevention and fall prevention. Scientifically, the level of knowledge about what constitutes physiologically good mobility is rather limited. In the article Blazevich et al. "Neuromuscular factors influencing the maximum stretch limit of human plantar flexors", J. Appl. Physiol (1985), 113 (9): 1446-55 (2012 ) discusses the relative importance of the mechanical muscle tendon versus the neuronal factors. That is, better mobility depends either on the physiological willingness to tolerate stress (tension receptors in the muscle or tendon apparatus) or to respond to a stress load from an individually different potential of the muscle tendon tissue. Out Scientific research is firstly known that the flexibility depends on the anatomical structures, which - at least in adulthood - can be influenced by training only minimal or not at all, but also that various stretching techniques at any age can lead to improvements in mobility , The item Franchi et al. "Architectural, functional and molecular responses to concentric and eccentric loading in human skeletal muscle", Acta Physiol (Oxf), 210 (3): 642-54 (2014 ) shows that the adaptation of the length of the muscle fibers (or fiber bundles) depends on the type of strength training stimulus. Based on current training studies, eccentric training tends to increase the number of sarcomers in series, thereby increasing muscle fiber length (or length of muscle fiber bundles). On the other hand supports the article Csapo et al. "Time kinetics of acute changes in muscle architecture in response to resistance exercises", J. Sci. Med. Sport., 14 (3): 270-4 (2011 ) the thesis that concentric training rather promotes the increase of parallel sarcomeres, which increases the muscle relaxation angle and the muscle cross section. This can even lead to a shortening of the involved muscle fiber (and thus reduce the ROM). The articles Sharman et al. "Proprioceptive Neuromuscular Facilitation Stretching: Mechanisms and Clinical Implications" Sports Med. 36 (11): 929-939 (2006 ); Rowlands et al. "Chronic flexibility gains: effect of isometric contraction duration during proprioceptive neuromuscular facilitation techniques", Res. Q. Exerc. Sport, 74 (1): 47-51 (2003 ) discuss the physiological mechanisms leading to an increase in the range of motion. These mechanisms include autogenic inhibition, reciprocal inhibition, stress-relaxation and control-impulse theory. All these theoretical mechanisms are based on reflexes that occur when Golgi tendon receptors in the stretched muscle or in the antagonistic muscle detect stretching stimuli, which pose potential dangers to the active musculoskeletal system and temporarily increase the stress tolerance through appropriate stretching methods and thus to an extended ROM during training and thereby lead to better training performance.

The US 4,240,627 A discloses a device for strengthening the leg and arm muscles, in which the exercising person can, among other things, strengthen abductions and adductors of the hip by applying the force to a leg support element, which is connected to a fluid resistance element, within a predetermined range of motion. However, due to a constant force acting on the leg musculature of the exerciser, this device does not allow the abducors to be trained in their full physiologically possible range of motion. In addition, in this device due to the training while sitting no passive component of mobility training available. Furthermore, the implementation of leading to increase the range of motion autogenic and reciprocal inhibition with this device is not possible because the sequence of movements between tensioning and relaxing is not given. Last but not least, this device is a massive structure that does not have high mobility and thus are difficult to transport.

Devices for passive training of the extensibility of the leg muscles up to a spread angle of 200 ° are known in the art (cf., for example DE 102011051473 B4 . US 4,445,684 A . DE 9400596 U1 . US 4,531,730 A . DE 8813040 U1 . US 5,620,404 A . US 4,506,884 and US 2009/298655 ). The influence on the spread angle takes place in all these devices either by cranks on a crank element, by adjusting rolling elements rolling on the ground or by using gravity. These systems do not allow strength training of the hip muscles. Likewise, they do not use the method of reciprocal and autogenic inhibition to increase the range of motion. Thus, the active range of motion of the target muscles is not expanded.

Devices are also known in the art which use reciprocal inhibition. By an elastic resistance (see. US 5,725,462 A . US 2004053752 . WO 0126746 . US 7,438,673 . US 2007179027 ) or a brake roller (see. WO 2005049149 ) is doing the abduction (ie the lateral bending of the legs) counteracted and thus generates a strength training stimulus. With differently heavy and large exercisers, this leads to different loads or muscle power, which may be too high or too low. Furthermore, by the steadily increased resistance, with increasing abduction, no maximum spread angle can be achieved. Likewise, in the known devices, no mechanism is provided for utilizing the autogenous inhibition or strength training of the agonists (muscles to be stretched). Accordingly, little or no physiological adjustments (enlargement of the muscle length) of the agonists take place.

It is an object of the invention to alleviate or eliminate at least individual disadvantages of the prior art. Accordingly, preferably a strengthening of the target musculature, a training with high power use in the full physiological range of motion and a physiological extension and temporary Tonussenkung be made possible by reflex activation of the target muscles.

This object is achieved by a training device having the features of claim 1. Preferred embodiments of the invention are specified in the dependent claims.

According to the invention, the braking device has a braking element, which is set up to decelerate the displacement of the first and second footrest along the guide rail by the trainee to a substantially constant speed. Accordingly, the braking element is configured to allow the displacement of the first and second footrest independently of the force applied by the exerciser and in any longitudinal position of the first and second foot braces along the guide rail at a substantially constant speed of displacement. For this purpose, the first and / or the second footrest is connected to the brake element. Depending on the design of the braking element, the maximum braking force of the braking element, up to which such a force-independent displacement of the footrests is made possible by the exerciser, at least 500 Newton, preferably at least 1000 Newton, more preferably at least 2000 Newton, especially at least 3000th Newton, amount. This allows training up to the maximum muscular strength of the exerciser, which, taking into account the gravity component, can be around 500 Newtons. Depending on the design, the brake element may also cause a minimum braking force of less than 40 Newton, preferably less than 30 Newton, in particular substantially 20 Newton. With the exercise device according to the invention thus an isokinetic training effect is achieved. It is advantageous that the strength training can be ensured using the maximum force at each spread angle of the exerciser. Advantageously, a temporary extension of the range of motion (ROM) is achieved, which makes a subsequent training session more effective. The strength training in the full range of motion also a permanent physiological extension of the range of motion is achieved.
For purposes of this disclosure, the location and directional indications, such as "horizontal" and "vertical," refer to the condition of use of the exerciser 1 on a flat, horizontal surface.

According to a particularly preferred embodiment, the braking element of the braking device for braking a displacement of the first and second footrest away from each other and a displacement of the first and second footrest is designed to double-acting on each other. In this embodiment, the braking element causes a substantially constant speed of displacement both when diverging and when merging the first and second footrest. This has the consequence that, when the footrests are separated, a reciprocal inhibition and, when the footrests are brought together, autogenous inhibition in the adductor of the exerciser is made possible.

For carrying out an isokinetic training, it is favorable if the brake element has at least one preferably hydraulic linear damper, in particular a cylinder-piston damper. Such linear dampers are known per se in the prior art. In a preferred embodiment, the Linear damper having a cylinder with a pressure chamber, a piston displaceable in the cylinder, a throttle bore and a piston rod connected to the piston. Such linear dampers allow in their operating range a substantially constant feed rate of the piston rod, regardless of the force exerted on the piston rod longitudinal force. In the case of a double-acting or double-sided linear damper, a substantially constant retraction and extension speed of the piston rod is achieved. As a result, the speed of displacement of the first and second footrest can be precisely controlled.

In a further preferred embodiment, the brake element has an electric brake unit, in particular a servomotor, a stepping motor or an eddy current brake.

In a preferred embodiment, the braking element comprises an adjusting device for adjusting the substantially constant speed of displacement of the first and second footrest. Preferably, the speed of displacement of the first and second footrests is adjustable to a substantially constant value between 0.1 and 0.8 m / s (meters per second), preferably to substantially 0.2 m / s.

In the case of the linear damper, the adjusting device may be arranged to increase or decrease a throttle bore of the linear damper.
In a preferred embodiment, the brake element is free of a biased by the displacement of the footrest spring, so that the displacement is independent of the longitudinal position of the first and second footrest.

In another preferred embodiment, the brake element has a spring which can be switched on and off as required. In the off state of the spring, the isokinetic training mode is feasible, which was previously described. In the switched-state of the spring, the spring is tensioned when the first and second footrest apart relaxed when merging the first and second footrest. In this training mode, abduction can be made more difficult and adduction easier.

In order to allow a uniform training, the first footrest in a preferred embodiment is connected to the brake element, wherein the second footrest is coupled via a coupling device with the first footrest. Thereby, a displacement of the first footrest in the one direction is converted into a corresponding displacement of the second footrest in the opposite direction.

With regard to a structurally simple embodiment, the coupling device preferably has an endless element, in particular a rope or a belt.

The endless element preferably runs around two deflection rollers, which are preferably arranged on opposite end regions of the guide rail.

In order to ensure the coupling between the first and second footrest in continuous use, a clamping device for tensioning the endless element is preferably provided. The tensioning device can be connected to a circulating roller, around which the endless element revolves. Preferably, the clamping device has a locking element for locking the circulating roller in different longitudinal positions relative to the guide rail. In addition, a slot guide may be provided on the guide rail, with which a guide of the clamping device is achieved when adjusting the longitudinal position of the circulating roller.

In order to facilitate the execution of the splits on the exercise device, the first and second footrest in a preferred embodiment each have a foot receiving unit for receiving a foot of the trainees and a sliding unit for slidable mounting on the guide rail, wherein a tilting device for tilting the foot receiving unit the sliding unit is provided.

In order to ensure the stability of the exerciser when performing the splits on the exercise equipment, a damper, in particular a radial damper, is preferably provided for damping the tilting of the foot receiving unit relative to the slide unit.

To allow the execution of a Seitspagats and a Längsspagats on the same training device, the Fußaufnahmeeinheit preferably a Fußaufnahmeelement with a footprint for the trainee, a bearing element for tiltable mounting on the sliding unit and a pivot bearing between the Fußaufnahmeelement and the bearing element, wherein the Fußaufnahmeelement means of the rotary bearing is mounted rotatably about a in use state substantially vertical axis of rotation on the bearing element.

In order to enable a stable arrangement of the footrests in the various exercises, a locking device for locking the foot receiving element is preferably arranged in a substantially perpendicular to the direction of the longitudinal axis of the guide rail first position for performing a Seitspagats and a substantially in the direction of the longitudinal axis of the guide rail arranged second position for carrying a Längsspagats is provided.

In a preferred embodiment, the locking device has at least one in particular connectable to the Fußaufnahmeelement retaining bolt, a first retaining hole in particular on the bearing element for passage of the retaining bolt in the first position and a second retaining hole in particular on the bearing element for the passage of the retaining bolt in the second position. Alternatively, the retaining bolt may be provided on the bearing element and the first and second retaining hole on the Fußaufnahmeelement.

In order to enable smooth guidance of the first and second footrest along the guide rail, the slide unit preferably has a cross-sectionally substantially U-shaped Sliding on which preferably two upper rollers are mounted for rolling on upper guide surfaces of the guide rail and two lower rollers for rolling on lower guide surfaces of the guide rail.

In order to facilitate the transport of the training device, the guide rail preferably has a first guide part for the first footrest, a second guide part for the second footrest and an intermediate part between the first guide part and the second guide part, wherein the first guide part and / or the second guide part is pivotally mounted from a position of use in a transport position to the intermediate part.

In order to facilitate, in particular, the adduction of the legs (i.e., the lateral introduction of the legs), it is preferable to provide at least one holding unit with a handle, wherein preferably the holding unit is pivotably attached to the intermediate part via a hinge.

The transport of the training device can also be facilitated by the fact that at least one rolling unit is provided for rolling during transport, which is preferably arranged on a side facing away from the ground in use of the upper side of the guide rail.

• Fig. 1 ein erfindungsgemäßes Trainingsgerät in Draufsicht;
• Fig. 2 einen Schnitt entlang der Linie A-A in Fig. 1;
• Fig. 3 einen Schnitt entlang der Linie B-B in Fig. 1;
• Fig. 4 eine schaubildliche Ansicht des Trainingsgeräts gemäß Fig. 1 bis 3;
• Fig. 5 eine Ansicht des Trainingsgeräts gemäß Fig. 1 bis 4 beim Zusammenklappen des Trainingsgeräts für den Transport;
• Fig. 6 eine Ansicht des Trainingsgeräts gemäß Fig. 1 bis 5 im zusammengeklappten Zustand;
• Fig. 7 eine auseinandergezogene Ansicht einer Fußstütze des Trainingsgeräts gemäß Fig. 1 bis 6;
• Fig. 8 eine Schnittansicht der Fußstütze gemäß Fig. 7;
• Fig. 9 eine auseinandergezogene Ansicht einer Spanneinrichtung des Trainingsgeräts gemäß Fig. 1 bis 8; und
• Fig. 10 eine Schnittansicht der Spanneinrichtung gemäß Fig. 9.

The invention will be explained below with reference to a preferred embodiment, to which, however, it should not be limited. In the drawing shows:

• Fig. 1 an inventive training device in plan view;
• Fig. 2 a section along the line AA in Fig. 1 ;
• Fig. 3 a section along the line BB in Fig. 1 ;
• Fig. 4 a perspective view of the training device according to Fig. 1 to 3 ;
• Fig. 5 a view of the training device according to Fig. 1 to 4 when folding the training device for transport;
• Fig. 6 a view of the training device according to Fig. 1 to 5 in the folded state;
• Fig. 7 an exploded view of a footrest of the exercise device according to Fig. 1 to 6 ;
• Fig. 8 a sectional view of the footrest according to Fig. 7 ;
• Fig. 9 an exploded view of a tensioning device of the training device according to Fig. 1 to 8 ; and
• Fig. 10 a sectional view of the clamping device according to Fig. 9 ,

Fig. 1 shows a training device 1, which can be provided both for a short time for a subsequent training session as well as in the long term for improving the mobility of a trainee. The training device 1 has a first footrest 2 and a second footrest 3, which are formed essentially ident. The first footrest 2 and the second footrest 3 are mounted linearly displaceable along a guide rail 4. Furthermore, a braking device 5 is provided, with which the displacement of the first footrest 2 and the second footrest 3 along the guide rail 4 can be braked due to a force exerted by the exerciser.

As in particular from Fig. 2 As can be seen, the braking device 5 has a braking element 6, which counteracts the displacement of the first 2 and second footrest 3 along the guide rail 4 in such a way that the first 2 and second footrest 3 move apart at a substantially constant speed independently of the force application of the trainee be merged. Accordingly, the brake element 6 of the brake device 5 is double-acting in the embodiment shown.

As in particular from Fig. 2 can be seen, the brake element 6 at least one, in the embodiment shown, two hydraulic linear damper 7, 8, which are each designed as a cylinder-piston damper with a cylinder 7a, 8a and a piston rod 7b, 8b. To the cylinder 7a of a linear damper 7, the piston rod 8b of the other linear damper 8 is connected. Instead of the successively arranged linear damper 7, 8, a single, longer linear damper could be used (not shown).

The first footrest 2 is connected via a locking pin 9 with the brake element 6, here the piston rod 7b of the linear damper 7. The second footrest 3 is connected via a coupling device 10 with the first footrest 2. The coupling device 10 has an endless element 11 in the form of a rope, which rotates about two deflection rollers 12 at opposite end regions of the guide rail 4. The deflection rollers 12 are arranged on opposite end regions of the guide rail 4.

The training device 1 also has two holding units 13 for the trainee. Each holding unit 13 has a handle 14, a stand 15 and a height adjustment device 15a. The uprights 15 are attached to side members 16 which are connected to the guide rail 4.

How out 4 to 6 As can be seen, the guide rail 4 has a first guide part 17 for the first footrest 2, a second guide part 18 for the second footrest 3 and an intermediate part 19 between the first guide part 17 and the second guide part 18. The first guide part 17 and the second guide part 18 are each articulated to the intermediate part 19, so that the first guide part 17 and the second guide part 18 each of a use position (see. Fig. 4 ) in a transport position (see. Fig. 6 ) are pivotable. Fig. 5 shows an intermediate position between the position of use according to Fig. 4 and the transport position according to Fig. 6 , In the position of use, the first guide part 17 is arranged in extension of the second guide part 18. In the transport position, the first 17 and second guide part 18 arranged parallel to each other. For transfer to the transport position, the first 17 and second guide part 18 are each pivoted by substantially 90 °. In addition, the side parts 16 of the holding units 13 in each case via a joint 21 (see. Fig. 3 ) is pivotally attached to the intermediate part 19. As a result, the side parts 16 can each be folded by substantially 90 ° onto the folded guide parts 17, 18.

Furthermore, a roller unit 22 for unrolling the training device 1 on the ground in the transport position is provided on the upper side of the guide rail 3.

How out Fig. 7, 8 can be seen, the first footrest 2 - the second footrest 3 is constructed accordingly - a foot receiving unit 23 for receiving a foot of the exerciser and a sliding unit 24 for slidably mounting the footrest 2 on the guide rail 4. In addition, a tilting device 25 is provided for the tiltable arrangement of the foot receiving unit 23 on the slide unit 24 about a substantially perpendicular to the longitudinal direction of the guide rail 4, extending in a horizontal plane pivot axis. The tilting device 25 has a first bearing block 26 on the sliding unit 24, a second 27 and third bearing block 28 on the foot receiving unit 23 and a pivot pin 29 projecting through the first 26, second 27 and third bearing block 28. Between the foot receiving unit 23 and the sliding unit 24, a damper 30 is further provided in the form of a radial damper, with which the tilting of the foot receiving unit 23 with respect to the sliding unit 24 is damped or braked.

The foot receiving unit 23 has a foot receiving element 31 with a footprint 32 for the trainee, a foot bracket 33 for lateral confinement of the foot and two fastening tabs 34 for fixing the foot to the footprint 32. In addition, the foot receiving element 31 has a bearing element 35 for tiltable mounting on the sliding unit 24 and a pivot bearing 36 between the foot receiving element 31 and the bearing element 35. The foot receiving element 31 is by means of the pivot bearing 36 to a in use substantially pivotable about the vertical axis of rotation on the bearing element 35 in order to arrange the first 2 and second footrest 3 for the exercise of a Seitspagats substantially perpendicular to the guide rail 4 or for the exercise of a Längsspagats substantially in the direction of the guide rail 4.

The slide unit 24 has a substantially U-shaped sliding element 37 in cross section, on which two upper rollers 38 for rolling on upper guide surfaces 39 of the guide rail 4 and two lower rollers 40 for rolling on lower guide surfaces 41 of the guide rail 4 are mounted.

The training device 1 also has an arresting device 42 for locking the foot receiving element 31 in each case in a first position arranged substantially perpendicular to the longitudinal axis of the guide rail 4 (cf. Fig. 1 to 8 ) for executing a Seitspagats and arranged substantially in the direction of the longitudinal axis of the guide rail 4 second position for performing a Längsspagats (not shown). In the embodiment shown, the locking device 42 has at least one retaining bolt 43 which can be connected to the foot receiving element 31, a first retaining hole 44 on the bearing element 35 for the passage of the retaining bolt 43 in the first position and a second retaining hole 44 (cf. Fig. 8 ) on the bearing element 35 for the passage of the retaining bolt 43 in the second position.

Fig. 9, 10th shows a termination member 45 at an end portion of the guide rail 4, to which a tensioning device 46 is mounted for tensioning the guided around the guide rollers 12 endless member 11. The tensioning device 46 has a locking element 47 with a star grip 48, which is connected to a screw 49. The screw 49 passes through the deflection roller 12 and a slot 50 on the end portion 45 of the guide rail 4. In the embodiment shown also an adjusting screw 51 is provided, which is screwed into a driving element 52. The driving element 52 has flanges 53 with openings 54 through which the screw 49 is inserted. For tightening the endless element 11, first the adjusting screw 51 operated, wherein the guide roller 12 is adjusted in the longitudinal direction. By tightening the star grip 48 on the end portion 45, the guide roller 12 can be set in the tensioned state of the endless member 11 in the respective longitudinal position on the slot 50.

Claims (15)

Exercise device (1) for increasing the mobility of a trainee, comprising: a first (2) and a second footrest (3), a guide rail (4) on which the first (2) and second footrest (3) are displaceably mounted, - A braking device (5), with which the displacement of the first (2) and second footrest (3) along the guide rail (4) can be braked, characterized in that - The braking device (5) has a braking element (6) which is adapted to decelerate the displacement of the first (2) and second footrest (3) along the guide rail (4) to a substantially constant speed. Training device (1) according to claim 1, characterized in that the braking element (6) of the braking device (5) for decelerating a displacement of the first (2) and second footrest (3) away from each other and a displacement of the first (2) and second footrest (3) is designed to double acting to each other. Training device (1) according to claim 1 or 2, characterized in that the brake element (6) has at least one preferably hydraulic linear damper (7), in particular a cylinder-piston damper. Training device (1) according to one of claims 1 to 3, characterized in that the first footrest (2) is connected to the brake element (6), wherein the second footrest (3) via a coupling device (10) with the first footrest (2 ) is coupled. Training device (1) according to claim 4, characterized in that the coupling device (10) comprises an endless element (11), in particular a rope or a belt. Training device (1) according to claim 5, characterized in that the endless element (11) revolves around two deflection rollers (12), which preferably at opposite end portions of Guide rail (4) are arranged. Training device (1) according to claim 5 or 6, characterized in that a tensioning device (47) is provided for tensioning the endless element. Training device (1) according to one of claims 1 to 7, characterized in that the first (2) and second footrest (3) each have a Fußaufnahmeeinheit (23) for receiving a foot of the trainees and a sliding unit (24) for slidable mounting on the Guide rail (4), wherein a tilting means (25) for tiltable arrangement of the foot receiving unit (23) on the slide unit (24) is provided. Training device (1) according to claim 8, characterized in that a damper (30), in particular a radial damper, for damping the tilting of the foot receiving unit (23) relative to the slide unit (24) is provided. Training device (1) according to claim 8 or 9, characterized in that the foot receiving unit (23) has a Fußaufnahmeelement (31) with a footprint (32) for the trainee, a bearing element (35) for tiltable mounting on the slide unit (24) and a Pivot bearing (36) between the Fußaufnahmeelement (31) and the bearing element (35), wherein the Fußaufnahmeelement (31) by means of the pivot bearing (36) about a substantially vertical axis of use in use pivotally mounted on the bearing element (35). Training device (1) according to claim 10, characterized in that a locking device (42) for locking the Fußaufnahmeelements (31) respectively in a substantially perpendicular to the direction of the longitudinal axis of the guide rail (4) arranged first position for performing a Seitspagats and a substantially in the direction of the longitudinal axis of the guide rail (4) arranged second position for carrying a Längsspagats is provided, wherein preferably the locking device (42) at least one in particular with the Fußaufnahmeelement (31) connectable retaining bolt (43), a first holding hole (44) in particular on the bearing element (35) for the passage of the retaining bolt (43) in the first position and a second retaining hole (45) in particular on the bearing element (35) for the passage of the retaining bolt (43) in the second position. Training device (1) according to one of claims 8 to 11, characterized in that the sliding unit (24) has a cross-sectionally substantially U-shaped sliding element (37) on which preferably two upper rollers (38) for rolling on upper guide surfaces ( 39) of the guide rail and two lower rollers (40) for rolling on lower guide surfaces (341) of the guide rail (4) are mounted. Training device (1) according to one of claims 1 to 12, characterized in that the guide rail (4) has a first guide part (17) for the first footrest (2), a second guide part (18) for the second footrest (3) and a Intermediate part (19) between the first guide part (2) and the second guide part (3), wherein the first guide part (2) and / or the second guide part (3) from a use position in a transport position pivotally attached to the intermediate part (19) is. Training device (1) according to one of claims 1 to 13, characterized in that at least one holding unit (13) with a handle (14) is provided, wherein preferably the holding unit (13) via a hinge (21) pivotally mounted on the intermediate part (19 ) is attached. Training device (1) according to one of claims 1 to 14, characterized in that at least one rolling unit (22) is provided for rolling during transport, which is preferably arranged on a side facing away from the ground in use of the top of the guide rail (4).

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