Ankle training and / or rehabilitation device and method for controlling such a device

Abstract

The invention relates to a training and / or rehabilitation device (1) comprising: a first support (10) for supporting a first foot (P1) of a subject, the first support (10) being movable relative to a support surface (5) and having a first support face (10A) for the first foot; and a second support (20). The first support (10) includes a first fastening system (15, 16) for the foot (P1) on the first support (10). The first support (10) is pivotally mounted relative to the support surface (5) about a single first pivot axis (BB) substantially parallel to the support surface, the first pivot axis (BB) making an angle (β) with respect to a first external direction (CC) of the foot (P1) which is within a range between 13° and 33°. (See Figure 2 for abbreviations)

Description

Title of the invention: Ankle training and / or rehabilitation device and method for controlling such a device. Technical field

[0001] The invention relates to the field of apparatus and devices for the rehabilitation of human joints and in particular the ankle.

[0002] The invention relates more specifically to a device for training and / or rehabilitating an ankle and a method for training and / or rehabilitating it. Prior art

[0003] In the case of a lateral ankle sprain, which represents the vast majority of ankle sprains, without appropriate rehabilitation, the recurrence rate is relatively high. Proprioceptive training and post-traumatic muscle strengthening are therefore essential to prevent such a recurrence. Consequently, ankle rehabilitation and training protocols and devices specifically designed for this proprioceptive and muscle strengthening work have been developed.

[0004] Conventional devices are generally based on a platform made unstable, for example, by means of a hemisphere, a half-cylinder, or a contact edge as the unstable contact surface of said platform. However, it is known that the most important muscles for reacting to an involuntary inversion of the foot are the evertor muscles. While such a platform allows for proprioceptive and overall muscle strengthening exercises, it is based solely on uncontrolled work in terms of direction, angle, and force, and is in no way suitable for targeting the evertor muscles. Thus, the proprioceptive and muscle strengthening exercises provided by this type of device are not entirely appropriate and may require a longer ankle rehabilitation period than a more suitable device would allow.

[0005] To overcome these drawbacks, there are training and / or rehabilitation devices, such as those described in documents FR2818912A1, FR2641183A1, and EP1767249B1, which allow the ankle to be subjected to stress in certain directions of instability, some of which involve the application of a resisting force. Thus, the ability to define the directions of instability and the potential application of constraints allows for the optimization of ankle rehabilitation and strengthening exercises. Since this exercise can be more targeted and more effective than that provided by the unstable platforms mentioned above, ankle rehabilitation is improved.

[0006] However, these devices are not perfectly suited.

[0007] For some of these devices the axis of rotation of the instability is incongruent with the natural axis of rotation of the ankle which is poorly adapted and results in muscle work that is also poorly adapted or not adapted (instability putting strain on extensor muscles, flexor muscles, ...).

[0008] Similarly, for some of these devices, the fact that the physiotherapist must define the direction(s) of instability makes them difficult to use. However, the directions of instability conducive to ankle rehabilitation are difficult to identify anatomically, which makes this adjustment challenging. Furthermore, adapting the footwear to the patient's foot shape often affects the instability direction settings, preventing a physiotherapist from choosing a single setting for all of their patients.

[0009] For some of these devices, the positioning of the foot is done by poorly adapted clamping systems which leave the foot with significant degrees of freedom and means that the work done is a more global work of the ankle muscles, rather than the specific work of the evertor muscles.

[0010] Finally, for some of these devices, only one foot is positioned on its mobilization system, without taking into account the second foot, which leaves the patient the freedom to choose postures in which he will mobilize muscles other than the muscles to be re-educated.

[0011] Thus, there would be an interest in providing a training and / or rehabilitation device that can provide specific muscle work and effective proprioceptive work without requiring a physiotherapist to define the direction of instability to ensure such specificity and effectiveness. Description of the invention

[0012] The invention aims to meet the above needs.

[0013] The invention relates to this purpose to a training and / or rehabilitation device for at least one ankle of a subject, the training and / or rehabilitation device comprising: - at least one support surface by which the training and / or rehabilitation device is intended to rest against a floor, - a first support intended to support the first foot of the subject corresponding to the first ankle, the first support being mounted movable relative to the bearing surface and presenting a first bearing face for the first foot, - a second support intended to support a second foot of the subject and having a second bearing surface, the first support and the second support being arranged, in at least one configuration of the training and / or rehabilitation device in which the first and second bearing surfaces are parallel to the bearing surface, at the same distance from at least one bearing surface so that the the first and second support faces are at a substantially equal height relative to the ground in said at least one configuration, the first support includes a first fixing system for the first foot on the first support shaped to fix a first orientation and a first positioning of the first foot relative to the first support, said first orientation and first positioning defining a first external direction of the first foot corresponding to a projection of an external edge of a midfoot of the first foot onto the first support face, the second support having a positioning system for the second foot in order to define a second orientation and a second positioning of the second foot on the second support, the first support being mounted pivoting relative to the support surface around a single first pivot axis substantially parallel to the support surface,the first pivot axis making an angle with respect to the first external direction which is included in a range between 13° and 33°, or even between 18° and 28° and advantageously between 21° and 25° along a direction of rotation going from the inside to the outside of the first foot, and intercepting a projection of a heel of the subject's first ankle onto the first support face when the orientation of their first foot is fixed by the first fixation system.

[0014] With such a device, the combination of the first fixation system and the mounting of the first pivoting support relative to the bearing surface ensures that foot rehabilitation occurs in a direction corresponding substantially to a horizontal projection of Henke's axis, thereby providing optimized stimulation of the ankle muscles, and especially the evertor muscles. This optimizes proprioceptive and muscle strengthening. Furthermore, this optimization is also made possible by the correct positioning of the first foot, facilitated by the first fixation system and the positioning system of the second foot, thus ensuring that the body is properly positioned and that the pivoting axis of the first support is aligned with a horizontal projection of Henke's axis of the first ankle. Moreover, this positioning can be achieved without the intervention of a physiotherapist.

[0015] Moreover, the use of two supports with such an arrangement ensures that the subject is able to use the support in a standing position. This standing position, not necessarily permitted by prior art devices, is a position where body weight is involved in the exercise, which is advantageous due to its similarity to the actual stresses experienced by the ankle. This contributes significantly to optimizing proprioceptive and muscle strengthening work made possible by the training and / or rehabilitation device.

[0016] While, as indicated in the introductory section of this document, the training and / or rehabilitation device according to the invention is particularly suitable for enabling post-traumatic muscle strengthening and proprioceptive training, the present device can also be used preventively as part of sports training for an individual who has not suffered any trauma. Indeed, such ankle strengthening exercises for an athlete help reduce the risk of injuries that could hinder their athletic performance.

[0017] It should be noted that, advantageously, the support of the bearing surface on the ground is stable and, in particular, of the hyperstatic type. In this way, the subject is able to use the device according to the invention safely.

[0018] In this document, references to the different parts of the subject's foot, in particular the forefoot, midfoot, and hindfoot, correspond to the anatomical definitions of said parts. Thus, forefoot, midfoot, and hindfoot are understood, here and throughout the rest of this document, respectively, to mean the part corresponding to the phalanges / metatarsals of said foot, the part corresponding to the cuboid, medial, intermediate, and lateral cuneiform bones, and navicular bone of said foot, and the part corresponding to the talus and calcaneus of said foot. Similarly, the median axis of a foot is understood to mean the axis of the foot passing through the center of the heel and between the second and third metatarsals.

[0019] The first fixation system, by allowing the positioning and orientation of the first foot to be fixed, can, in particular, provide support for the foot against the first support. With such support, the first foot is thus secured against detachment when the subject uses the training and / or rehabilitation device and is therefore held in position during the pivoting of the first support. In this way, proprioceptive and / or muscle strengthening work is particularly optimized, and the subject is reassured regarding the risk of foot displacement during the use of the device.

[0020] The second foot positioning system may include a second fixing system for the second foot on the second support shaped to fix the second orientation and second positioning of the second foot relative to the second support, said second orientation and second positioning defining a second external direction of the second foot corresponding to a projection of an external edge of a midfoot of the second foot onto the second support face, in which the second support is mounted pivoting relative to the bearing surface about a single second pivot axis substantially parallel to the bearing surface, the second pivot axis making an angle with respect to the second external direction which is included in a range between 13° and 33°, or even between 18° and 28° and advantageously between 21° and 25° along a direction of rotation going from the inside to the outside of the second foot, and intercepting a projection of a heel of the subject's second ankle onto the supporting face when the orientation of his second foot is fixed by the second fixing system, the training and / or rehabilitation device preferably comprising a pivoting locking system configured to allow pivoting locking of the first support and the second support.

[0021] In this way, the device allows training and / or rehabilitation of the subject's second ankle, with the same advantages as for the first ankle.

[0022] The second support can be fixed in movement to the bearing surface with the second bearing face arranged parallel to the bearing surface.

[0023] Thus, the training and / or rehabilitation device can be simpler and therefore less expensive to manufacture while still benefiting from the advantages related to the invention.

[0024] The training and / or rehabilitation device may further include at least one first constraint element arranged to exert a constraint force on the pivoting of the first support along a direction of inversion rotation of the first foot of the subject which is intended to be supported thereon, the at least first constraint element being preferably selected from the group of gravitational constraint elements, elastic constraint elements and electromagnetic constraint elements.

[0025] Such a constraint element allows for active training and / or rehabilitation of the first ankle and thus an optimization of the work offered by the device.

[0026] The first system for fixing the first foot on the first support may include a first strap arranged to hold a forefoot of the first foot in contact with the first support face and at least a first wedge on which an external edge of the midfoot and / or a rearfoot of the first foot is intended to come into contact when it is supported by the first support face, the first strap and the first wedge being preferably arranged to constrain the first foot to rest on the first support but also to constrain an external side of the first foot to rest on the first wedge so as to fix the first external direction.

[0027] With such a system the position and orientation of the first foot are perfectly fixed, while ensuring, thanks to the strap, good support of the first foot during the entire use of the training and / or rehabilitation device by the subject.

[0028] The first fastening system may further comprise a second wedge on which an inner edge of the midfoot and / or a rearfoot of the first foot is intended to come into contact when supported by the first bearing face, said second wedge being able to be mounted movable with respect to the first support, the first wedge being fixed to the first support.

[0029] In this way, the training and / or rehabilitation device allows for good support of the first foot regardless of its morphology.

[0030] The first strap may include a support portion intended to bear against an external part of the top of the forefoot of the first foot of the subject, said support portion preferably having an external part and an internal part following each other in a lateral direction of the first foot intended to be held by the strap going from the outside to the inside of said first foot, the external part having a greater hardness than that of the internal part.

[0031] Such a configuration provides support for the outer part of the first foot when it is highly mobilized during the exercises permitted by the training and / or rehabilitation device. This results in a particularly optimized proprioceptive and muscle strengthening workout offered by the device according to the invention.

[0032] The at least first constraint element may include at least one first elastic return element and preferably a second elastic return element, or even a third or more elastic return element, the training and / or rehabilitation device further including a gripping system configured to engage said at least one first elastic return element with the first support, and, where the first constraint means include a second elastic return element, or even a third elastic return element, the gripping system may have a configuration in which it engages the second elastic return element, or even the third elastic return element with the first or more support.

[0033] Such a constraint element allows the training and / or rehabilitation device to provide both relatively unconstrained work, i.e. under “body weight”, lightened if the subject is seated or complete if the patient is standing, particularly aimed at proprioception when the first support is not in contact with an elastic return element, and more constrained work particularly aimed at muscle building / re-muscle building, when the first support is in contact with an elastic return element.

[0034] The training and / or rehabilitation device may further include at least one sensor capable of providing information relating to the positioning and / or angular displacement of the first support with respect to the support surface.

[0035] Such a sensor makes it possible to qualify the subject's reaction to the instability caused by the pivoting of the first support and the possible constraint applied to it.

[0036] The training and / or rehabilitation device may further include a first locking element configured to lock the first support in a rest position in which the first bearing face is parallel to the bearing surface, the first locking element being preferably automated in such a way as to allow a command to switch the locking system from an unlocked configuration in which the first support is free to leave the rest position to a locked configuration in which the first support is held in the rest position.

[0037] When the training and / or rehabilitation device includes a second foot positioning system comprising a second fixing system and includes a pivoting locking system, the pivoting locking system may include said first locking element.

[0038] The training and / or rehabilitation device may further include at least one first stop configured to limit the angle of rotation of the first support with respect to the support surface, said stop preferably providing a rotation stop along the direction of inversion rotation of the first foot of the subject which is intended to be supported by the first support, the at least one first stop preferably being adjustable.

[0039] In this way, the pivoting range of the first support can be limited and thus the stress on the first ankle by the training and / or rehabilitation device can be adapted as precisely as possible to the training and / or rehabilitation needs of the subject.

[0040] Method for controlling a training and / or rehabilitation device for at least one ankle of a subject according to the invention, comprising the following steps: - placement of the first support in a rest position in which the first bearing face is parallel to the bearing surface, - release of the first support from its resting position with preferentially an application of a constraint force to the pivoting of the first support according to a direction of rotation of inversion of the first foot of the subject which is intended to be supported there, - detection of a return of the first support to the resting position.

[0041] A control method enables the implementation of the training and / or rehabilitation device according to the invention. Brief description of the drawings

[0042] The present invention will be better understood upon reading the description of exemplary embodiments, given purely by way of illustration and in no way limiting, with reference to the accompanying drawings in which:

[0043] [Fig.IA] illustrates a top view of a first example of the arrangement of a training and / or rehabilitation device according to the invention,

[0044] [Fig.1B] illustrates a top view of a second example of the arrangement of a training and / or rehabilitation device according to the invention,

[0045] [Fig.2] schematically illustrates, in perspective, a training and / or rehabilitation according to a first embodiment of a training and / or rehabilitation device according to the invention,

[0046] [Fig.3] schematically illustrates, in perspective, a variant of the device training and / or rehabilitation according to the first embodiment illustrated in [Fig.2],

[0047] [Fig.4] illustrates, according to a side perspective view, a drive device and / or rehabilitation according to a second embodiment corresponding to a practical implementation of the invention, incorporating a support bar,

[0048] [Fig.5A] illustrates, in a side perspective view, the training and / or rehabilitation device according to a second embodiment in which the support bar has been removed,

[0049] [Fig.5B] illustrates, from a rear view, the training and / or rehabilitation device according to a second embodiment with the support bar removed,

[0050] [Fig.5C] illustrates, from a front view, the training and / or rehabilitation device according to a second embodiment with the support bar removed,

[0051] [Fig.5D] illustrates, in a side view, the training and / or rehabilitation device according to a second embodiment with the support bar removed,

[0052] [Fig.6] illustrates, according to a perspective view, the constraint element equipping the training and / or rehabilitation device,

[0053] [Fig.7] schematically illustrates, in perspective, a third embodiment of a training and / or rehabilitation device according to the invention in which the training and / or rehabilitation device comprises a separate element for each of the subject's feet.

[0054] Identical, similar or equivalent parts of the different figures bear the same numerical references so as to facilitate the transition from one figure to another.

[0055] The different parts represented in the figures are not necessarily shown on a uniform scale, in order to make the figures more legible.

[0056] The different possibilities (variants and embodiments) should be understood as not being mutually exclusive and can be combined with each other.

[0057] Detailed description of particular embodiments

[0058] Figures IA and IB illustrate, from a top view, two examples of the arrangement of a training and / or rehabilitation device 1 for a subject according to the invention.

[0059] It can thus be seen from these figures that such a training and / or rehabilitation device 1 comprises: - at least one support surface 5, not shown in Figures IA and IB and visible in [Fig.2], by which the training and / or rehabilitation device 1 is intended to be in support of a floor 2, - a first support 10 intended to support a first foot PI of the subject corresponding to the first ankle, the first support 10 being mounted movable relative to the support surface 5 and presenting a first support face 10A for the first foot, - a second support 20 intended to support a second foot P2 of the subject corresponding to a second ankle, the second support 20 being mounted movable relative to the support surface 5 and presenting a second support face 20A for the second foot P2.

[0060] Of course, if in the present configurations the support surface 5 is materialized by a face of the training and / or rehabilitation device 1, this support surface can also be virtual and be defined, for example, by the lower edges of the training and / or rehabilitation device 1 by which the device rests on the ground. This possibility is shown in particular in Figures 4 to 5D in the context of the second embodiment in which the lower edges are provided by the support profiles of the base.

[0061] The first support 10 and the second support 20 are arranged, in a resting configuration of the training and / or rehabilitation device 1 in which the first and second support faces 10A, 20A are parallel to the support surface 5, at the same distance from at least one support surface 5 so that the first and second support faces 10A, 20A are at a substantially equal height with respect to the ground in said at least one configuration.

[0062] According to the principle of the invention, the first support 10 comprises a first fastening system 17A for attaching the first foot PI to the first support 10, configured to fix a first orientation and a first positioning of the first foot PI relative to the first support 10. Said first orientation and first positioning define a first external direction (or external line) of the first foot CC, corresponding to a projection of an external edge of a midfoot of the first foot PI onto the first support face 10A. In these configurations, the first fastening system comprises a single wedge 17A, having an unreferenced pad, on which an external portion of the first foot rests. Alternatively, the entire wedge 17A may advantageously be covered with foam to provide more comfortable contact with the external edge of the foot.

[0063] According to the present configurations illustrated in Figures IA and IB, in a way Identical to the first support 10, the second support 20 includes a second fixing system 27A for the second foot P2 on the second support 20, configured to fix a second orientation and a second positioning of the second foot P2 relative to the second support 20. Said second orientation and second positioning define a second external direction (or second external line) of the first foot C'-C', corresponding to a projection of an external edge of a midfoot of the second foot P2 onto the second support face 20A. Identical to the first fixing system, the second fixing system includes a single wedge 27A, having an unreferenced cushion, on which an external part of the forefoot of the second foot P2 rests.

[0064] According to these configurations of the training and / or rehabilitation device 1, the single wedge 17A, 27A, which is associated with each of the first and second supports 10, 20, is preferably adjustable to adapt to the morphology of the first and second feet PI, P2. Such an adjustment, not shown, can be provided, for example, by means of a wedge 17A, 27A mounted to move in translation, with a fixed orientation relative to the corresponding support 10, 20, and placed in contact with the foot, or adjusted with a positioning indicator based on a morphological characteristic of said foot, such as a shoe size or a measurement of the foot width. Such an adjustment can thus allow the positioning of foot PI, P2 to be adjusted relative to the movement of the first and second supports 10, 20 with respect to the support surface 5.As indicated above, this single wedge 17A, 27A preferably includes an unreferenced cushion made of an elastically deformable material, such as foam. This cushion is advantageously arranged so that an external part of the forefoot of the corresponding foot PI, P2 comes into contact with the latter when said foot PI, P2 has its orientation and positioning fixed by the fixation system. It should be noted that, of course, according to an unillustrated variant and in order to fine-tune the orientation and positioning of the foot, the movable assembly of the wedge 17A, 17B may include an angular adjustment of the wedge with a degree of freedom between -3° and +3° with respect to a working direction (corresponding to the projection of the Henke axis of foot PI, P2) in order to adapt to any possible morphological particularities of the subject's feet PI, P2.

[0065] Of course, these configurations illustrate an example of the conformation and arrangement of the first and second supports 10, 20. Thus, the shape and dimensions of the first and second supports 10, 20 can be modified and adapted without departing from the scope of the invention. For example, if the inner edges (i.e., edges facing each other) of the first and second supports 10, 20 are straight and parallel to each other, this is a choice made by the inventors. Thus, the first and second supports 10, 20 can also have a curved shape, to be at closer to the shape of the foot PI, P2, than a general rectangular shape to facilitate its manufacture, without departing from the scope of the invention. It should also be noted that, preferably, the first and second supports, and their respective fixing systems, can be shaped such that the centers of the projections T1, T2 of the heels of the first and second feet PI, P2 on the corresponding bearing faces 10A, 20A are at a distance of between 18 and 40 cm, or even between 20 and 30 cm or between 22 and 28 cm, this distance being particularly advantageously approximately equal to 25 cm.

[0066] According to the invention, the first support 10 is mounted to pivot relative to the support surface 5 about a single first pivot axis BB substantially parallel to the support surface. The first pivot axis BB makes an angle [3] with respect to the first external direction CC that is substantially equal to 23° along a direction of rotation from the inside to the outside of the first foot PI, and intercepts the projection T1 of a heel of the subject's first ankle onto the first support surface when the orientation of their first foot PI is fixed by the first fixation system. In such a configuration, the pivot axis BB corresponds substantially to a projection of the Henke axis of the first foot onto the first support surface 10A, which is ideal for the rehabilitation and strengthening of the first ankle.

[0067] It will be noted that in such a configuration, the pivot axis BB makes approximately an angle a of 16° with respect to a median axis MM of the first foot PI, which corresponds to a projection of the Henke axis onto the first support face 10A.

[0068] It will be noted that according to a more general possibility of the invention allowing good rehabilitation and strengthening of the first ankle of the subject, the angle [3 vis-à-vis the first external direction CC can be included in a range between 13° and 33°, or even between 18° and 28° and advantageously between 21° and 25° according to a direction of rotation going from the inside to the outside of the first foot PI.

[0069] In the configurations illustrated in Figures IA and IB, the second support 20 has a similar configuration. Thus, the second support 20 is mounted pivotally relative to the support surface 5 about a single second pivot axis B'-B' substantially parallel to the support surface, the second pivot axis B'-B' making an angle [3'] with respect to the second external direction C'-C' which is substantially equal to 23° along a direction of rotation from the inside to the outside of the second foot P2, and intercepting a projection T2 of a heel of the subject's second ankle onto the second support face 20A when the orientation of their second foot P2 is fixed by the second fixation system 27. Identical to the first support 10 and generally, the angle [3'] with respect to the second external direction C'-C' can be included in a range between 13° and 33°, or even between 18 and 28° and advantageously between 21° and 25° according to a direction of rotation going from the inside to the outside of the second foot P2.

[0070] The configurations of [Fig. 1A] and [Fig. 1B] differ only in the opening angle between the first and second orientations CC, C'-C' defined by the first and second fixing systems 17A, 27A, the angles [3, [3'] between the pivot axes BB, B'-B' and the first and second directions CC, C'-C being identical in these two configurations. Indeed, in the case of the configuration of [Fig. 1A], which is particularly advantageous, the first and second feet PI, P2 with their first and second orientations, defined by their median axes MM, M'-M', fixed by the first and second fixing systems 17A, 27A define an angle of 12°. In the second configuration illustrated in [Fig.1B], the first and second feet PI, P2 with their first and second orientation fixed by the first and second fixing system 17A, 27A define an angle of 20° between the median axes MM, M'-M' of the first and second feet PI, P2.It should be noted that in a typical configuration of the invention, the first and second feet PI, P2, with their first and second orientations fixed by the first and second fixing systems 17A, 27A, define an angle between the median axes MM, M'-M' of the first and second feet PI, P2 of between 0° and 30°, preferably between 6° and 18°, or even between 9° and 15°. This angle between the median axes MM, M'-M' of the first and second feet PI, P2 is particularly advantageous, as is the case in [Fig. 1A], approximately equal to 12°.

[0071] It should be noted that, according to a possibility not shown in the present configurations illustrated by Figures IA and IB and allowing for optimization of ankle muscle strengthening (or re-muscle strengthening), the training and / or rehabilitation device 1 may also include at least one of the following elements: - at least one first constraint element arranged to exert a constraint force on the pivoting of the first support 10 along a direction of inversion of the first foot PI of the subject which is intended to be supported thereon, - at least one sensor capable of providing information relating to the positioning and / or angular displacement of the first support 10 with respect to the bearing surface 5, - a first locking element configured to lock the first support in a rest position in which the first bearing face 10A is parallel to the bearing surface 5, and - at least one first stop configured to limit the angle of rotation of the first support 10 with respect to the bearing surface 5.

[0072] In order to illustrate more specifically some of these elements of a training and / or rehabilitation device 1 according to the invention, [Fig. 2] illustrates such a device according to a first embodiment. In this first embodiment, Only the first support 10 is mobile relative to the support surface 5; the second support 20 is fixed relative to the support surface 5 and includes a positioning system 25A comprising an imprint of the second foot P2 on which the subject must position their second foot P2 as an alternative to a second fixation system 27A as described in the configurations of Figures IA and IB. Apart from these differences and the use of a first fixation system which is advantageous due to the use of a first strap 15, 16, this first embodiment has a configuration consistent with that illustrated in [Fig. 1A].

[0073] In this first embodiment, the second support 20 is fixed in movement from the support surface 5 with the second support face 20A arranged parallel to the support surface 5. A fixing is provided by a second support coinciding with a superior surface of the training and / or rehabilitation device.

[0074] It can also be seen in [Fig. 2] that, since only the first support 10 is mounted pivotally relative to the support surface 5, the training and / or rehabilitation device 1 is dedicated to the subject's left foot PI. Of course, alternatively, it is perfectly conceivable, for example by providing a first and second support 10, 20 independent of each other as described below in relation to [Fig. 7], to provide a training and / or rehabilitation device 1 having a first support 10 shaped to allow work on both the left and right foot PI, P2, without any inventive step being required.

[0075] In order to ensure that the first foot PI is held securely on the first support 10 and that the first orientation and positioning are maintained, the first fastening system comprises: - a first strap 15, 16 arranged to hold a forefoot of the first foot PI in support of the first support face - a first wedge 17A on which an external edge of the rear foot of the first foot PI is intended to rest when it is supported by the first support face, - a second wedge 17B on which an internal rear foot edge of the first foot PI is intended to rest when it is supported by the first support face 10A.

[0076] In the present embodiment, the first strap 15, 16 and the first wedge 17A are arranged to bear against one external side of the first foot PI so as to fix the first external direction CC. Thus, in this first embodiment, it is this assembly of the first strap 15, 16 and the first wedge 17A that defines the first external direction CC, whereas in the first and second configurations illustrated in Figures IA and IB, it was the single first wedge 17A that allows for such a definition.

[0077] In order to allow adjustment of the first fastening system to the morphology of the first PI foot of the subject: - the first strap 15, 16 is adjustable to allow adaptation to the morphology of the foot PI, by including a support portion 15, intended to fold down to rest on an external part of the top of the forefoot of the first foot and equipped with a closure system, such as a buckle, and a portion of the strap 16 shaped to cooperate with the closure system so as to allow the foot PI to be held against the first support face 10A by the first strap 15, 16, - the second wedge 17B is mounted movable vis-à-vis the first support 10 so as to allow the external part of the first foot PI to rest on the first wedge 17A.

[0078] As shown in [Fig. 2], the bearing face 20A of the second support comprises a single imprint of the second foot 25A as a positioning system. It is, of course, conceivable that the positioning system could be different without departing from the scope of the invention. Thus, it is perfectly conceivable that, alternatively, the positioning system 25A could comprise a plurality of markers, each marker corresponding to a foot morphology or foot placement information, or even include one or more wedges of the same type as those in the configurations of Figures IA and IB or those shown in connection with [Fig. 7].

[0079] It will be noted that if in the present embodiment, the first and second wedges 17A, 17B are arranged to be in support of respectively an external edge and an internal edge of the rearfoot, it is perfectly conceivable without departing from the scope of the invention, that at least one of the first and second wedges 17A, 17B is arranged to be in support of an edge of the midfoot instead of the rearfoot.

[0080] The movable mounting of the second wedge 17B, not shown in [Fig. 2], is advantageously referenced with respect to a morphological data point of said foot, such as a shoe size PI of the subject. This movable mounting of the second wedge 17B can be of different types without departing from the scope of the invention, such as, for example, a sliding friction mounting on the first support 10 or a removable mounting with a plurality of locations arranged on the first support, each corresponding to a range of values ​​of said morphological data point.

[0081] Similarly, in order to provide optimized support of the first foot on the first support, the support portion 15 is in the form of a wide band designed to conform to and be pressed against the forefoot and the base of the instep when This is tensioned by the strap section 16 using a tensioning system. To ensure good foot support while maintaining comfortable contact for the top of the foot, the support section 15 is designed to have an external part 15A and an internal part 15B following each other in a lateral direction of the first foot PI, each comprising a respective comfort foam.

[0082] In order to promote the proprioceptive and muscle-strengthening work offered by the device according to the invention, it is advantageous to ensure good support for the external part of the foot, which is highly mobilized in the exercises permitted by the device. To this end, the comfort foam of the external part 15A may comprise a relatively rigid foam, for example, a 70 SHORE A hardness foam. The comfort foam of the internal part 15B, which covers the internal part of the foot, less mobilized in the exercises permitted by the device and more sensitive, may comprise a foam of lower hardness than that of the external part 15A, for example, a 40 SHORE A hardness foam. Thus, the external part 15A has a greater hardness than that of the internal part 15B.

[0083] If, in the present embodiment, the first constraint element is not shown, with the exception of an adjustment lever 186, in accordance with the possibility of the invention, such a first constraint element is arranged to exert a constraint force on the pivoting of the first support 10 along a direction of rotation of the first foot PI of the subject intended to be supported thereon. Such a first constraint element may, in particular, be selected from the group comprising: - gravitational constraint elements, such as one or more masses arranged to constrain the first support 10 to pivot along the inversion direction of the first foot PI, - elastic stress elements, such as springs and elements made of elastically deformable materials, - the electromagnetic constraint element, such as an electric motor arranged to constrain the first support 10 to pivot according to the inversion direction of the first foot PI.

[0084] These elements all have the capacity to constrain pivoting. It should be noted that by using an electromagnetic constraint element as a means of constraining pivoting, such a design can also allow operation in passive resistance or friction, and offer exercises where the patient is the driving force and fights against a force hindering the pivoting of the first support 10.

[0085] In the context of the embodiments of the invention, at least one first constraint element may comprise, as specified below in the context of the second embodiment illustrated in Figures 4 to 6, a pluralization of elements of elastic return 181, 182, 183 associated with a locking system 185. Thus according to this possibility, the handle 186 can allow control of the locking system 185 in order to allow locking of one or more elastic return elements 181, 182, 183 with the first support 10 and thus allow control of the application of the constraint force to the pivoting of the first support 10 and its adjustment.

[0086] In this embodiment, the engagement system is configured to allow each of the elastic return elements 181, 182, 183 to engage with the first support 10 independently of whether or not the other return elements 181, 182, 183 are engaged, thus offering considerable flexibility in the applicable stress force values. Of course, other configurations of the engagement system are perfectly conceivable without departing from the scope of the invention. For example, the engagement system can be configured to allow individual coupling of the first support 10 with each of the stress elements, the accessible stress force values ​​corresponding solely to those provided by each stress element individually.Similarly, it is perfectly conceivable that the engagement system could be adapted to allow incremental coupling of the constraint elements, with the engagement of the second constraint element necessarily having to be with the first opposing element, and that of the third constraint element requiring the coupling of the first and second constraint elements.

[0087] Similarly, although the present embodiment does not show a first locking element configured to lock the first support 10 in the rest position, [Fig. 2] nevertheless shows a mechanical actuator 19 capable of implementing such a lock. In this way, using such a mechanical actuator 19, the subject or the physiotherapist is able to unlock the first support 10 to allow its pivoting relative to the support surface 5 and to begin the strengthening and proprioceptive work of the subject's ankle. Of course, if the first locking element is not shown in this application, it may consist of a simple retractable latch, capable of locking the first support 10 in its rest position when it is in an active, i.e., non-retracted position.

[0088] It should also be noted, although not shown in Figures IA to 2, that the first support and / or its pivot axis BB may be equipped with at least one sensor capable of providing information relating to the positioning and / or angular displacement of the first support 10 with respect to the bearing surface 5. Such a sensor may thus be: - a positioning sensor, such as a switch (limit switch, (bulb switch or reed switch), capable of providing information when the first support occupies a well-defined position in which it activates said switch, - that an angular sensor capable of providing angular positioning information for the first support 10, or - that an accelerometer capable of providing information concerning the displacement of the first support 10.

[0089] Such a sensor makes it possible to qualify the subject's reaction to the instability caused by the pivoting of the first support 10 and the possible constraint applied to it by at least one first constraint element 18. Such qualification of the subject's reaction can allow the physiotherapist to know the muscle tone and to qualify the subject's proprioception and possibly adjust the configuration of the training and / or rehabilitation device 1.

[0090] According to a common embodiment of the invention, which is described later in connection with the second embodiment, the training and / or rehabilitation device 1 may also include one or more stops, not shown in [Fig. 2], in order to limit the angular range of pivoting of the first support 10 relative to the support surface 5. Thus, according to this common embodiment, two stops may be provided: a first stop arranged to limit the pivoting of the first support 10 in the direction of inversion rotation of the first foot PI, and a second stop arranged to limit the pivoting of the first support 10 in the direction of eversion rotation of the first foot PI. The first stop thus limits the possible pivoting of the first support in order to avoid stressing the first ankle in an extreme movement that could be painful or even harmful to the subject.The second stop, when it corresponds to a pivot beyond the rest position of the first support 10, allows the first ankle to be everted, which can be useful in the context of proprioceptive work and rehabilitation of said ankle.

[0091] The first stop can be adjusted to allow the first support 10 to pivot along the maximum inversion rotation direction of the first foot PI, between 20° and 45°, preferably between 25° and 40°, and particularly advantageously between 32.5° and 37.5°, or even substantially equal to 35°. Similarly, the second stop can be adjusted to allow the first support 10 to pivot along the eversion rotation direction of the first foot PI beyond the rest position, through a maximum angle between 5° and 22°, preferably between 10° and 18°, or even substantially equal to 15°. In both cases, of course, 0° of rotation corresponds to the rest position of the first support 10. Thus, in one embodiment, the first and second stops can be arranged to allow a pivoting of the first support 10 of 35° in inversion and 15° in eversion with respect to the rest position.

[0092] Advantageously, the first and second stops can be adjustable to allow the physiotherapist to adapt the range of rotation accessible by the first support 10 to suit the subject's recovery status and / or the flexibility of the ankle joint. Alternatively, the device may include a plurality of retractable first and / or second stops, said stops being positioned in the non-retracted state, i.e., blocking the rotation of the first support, according to the desired angular range.

[0093] In the context of using such a training and / or rehabilitation device 1 according to the invention, the device can be controlled by means of a control method comprising the following steps: A - placement of the first support 10 in the rest position in which the first bearing face 10A is parallel to the bearing surface 5, B - release of the first support 10 from its resting position, preferably with the application of a constraint force to pivot the first support in a direction of inversion of the first foot PI of the subject intended to be supported by it; D - detection of the return position of the first support 10 to the resting position.

[0094] Furthermore, when, according to this embodiment, the training and / or rehabilitation device 1 includes at least one sensor, a step C - detection of the maximum angular position in inversion - may also be provided between steps B and D. Similarly, once the return of the first support 10 to the resting position has been detected in step D, a step E - locking of the first support 10 in the resting position - may be provided.

[0095] Of course, when required, as is generally the practice, a repetition of the stimulus exerted by the training and / or rehabilitation device 1 is possible; thus, step C, and the possible step D of the control method according to the invention can be repeated in order to obtain the required number of stimuli.

[0096] Similarly, if in the present embodiment, the training and / or rehabilitation device 1 is adapted to only stimulate the first foot PI of the subject (the left foot), when the training and / or rehabilitation device is adapted to allow stimulation of the second foot P2, as is the case in the variant described below in connection with [Fig.3] and the second and third embodiments described in connection with Figures 4 to 6, the training and / or rehabilitation device 1 is able to allow the implementation of a control method comprising identical steps for the second support 20.

[0097] During this command, when the device is equipped with at least one sensor, it is possible to obtain information relating to positioning and / or movement angular of the first support 10 in order to qualify the displacement of the first support 10 between the release step and the detection of the return of the first support 10 to the rest position.

[0098] Fig. 3 illustrates a variant of the training and / or rehabilitation device 1 according to the first embodiment which differs from a device according to the first embodiment in that the second support 20 is mounted pivotally with respect to the support surface 5 and includes a second fixing system, as a positioning system comprising a first and a second wedge 27A, 27B intended for the second foot P2 and which is suitable for receiving a strap of the same type as that of the first fixing system 15, 16, 17A, 17B whose conformation is adapted to the second foot P2.

[0099] Thus according to this variant, the second support is also mounted pivoting relative to the support surface 5 and allows, unlike the training and / or rehabilitation device 1 according to the first embodiment, training and / or rehabilitation 1 of both the right foot P2 and the left foot PI.

[0100] Since such training of each of these feet P1, P2 should preferably be carried out independently of each other, the training and / or rehabilitation device 1 includes a pivoting locking system configured to allow pivoting of the first support and the second support 10, 20 in their first position. Thus, similarly to that of the first embodiment, the training and / or rehabilitation device 1 according to the present variant includes a second locking element configured to lock the second support 20 in the resting position; [Fig. 3] nevertheless shows a second mechanical actuator 29 capable of implementing such a locking.In this way, using such a second mechanical actuator 29, the subject or the physiotherapist is able to unlock the second support 20 in order to allow its pivoting relative to the support surface 5 and to begin proprioceptive work on the subject's second ankle. It should be noted that, preferably, the mechanical actuator 19 and the second mechanical actuator 29 are configured to allow the pivoting release of only one support 10, 20 between the first and second supports 10, 20 at the same time.

[0101] Of course, according to this embodiment, the second support 20 being pivotally mounted, at least one constraint element is also arranged to exert a constraint force on the pivoting of the second support 20 in a direction of rotation of the second foot P2 of the subject intended to be supported thereon. Thus, the adjustment lever 186 can also allow control of the engagement system in order to engage one or more elastic return elements 181, 182, 183 with the second support 20 and thus allow control The application of the constraint force to the pivoting of the second support 20 and its adjustment. Thus, according to this possibility, at least one constraint element is configured to apply a constraint force to the pivoting of both the first support 10 and the second support 20. Of course, alternatively, the training and / or rehabilitation device 1 may include, in addition to the first constraint element configured to apply a constraint force to the pivoting of the first support 10, a second constraint element configured to apply a constraint force to the pivoting of the second support 20.

[0102] Apart from the absence of a strap, the second fastening system has an identical configuration to that of the first fastening system. Thus, the second fastening system comprises a first wedge 27A fixed to the second support 20 and a second wedge 27B mounted movably relative to the second support 20. In addition, to allow a change of configuration, the second support 20, depending on this second support, may include an attachment system configured to allow the attachment of a second strap, similar to that of the first fastening system 15, 16, 17A, 17B, to the second support 20. Thus, if the training and / or rehabilitation device 1 has the configuration illustrated in [Fig.3] adapted to allow work on the subject's right ankle, the subject or the physiotherapist is able, by placing this second strap, to move the training and / or rehabilitation device 1 into a configuration adapted to allow work on the subject's left ankle.

[0103] Of course, such a training and / or rehabilitation device 1 is suitable for enabling the implementation of a control method conforming to the first embodiment.

[0104] Figures 4 to 5D illustrate a training and / or rehabilitation device 1 according to a second embodiment, based on a practical implementation example of a training and / or rehabilitation device 1 according to the invention. A training and / or rehabilitation device 1 according to this second embodiment differs from a training and / or rehabilitation device 1 according to the variant of the first embodiment, in that each of the first and second supports 10, 20 has a respective strap 15, 16, 25, 26, in that the device includes a control module to enable, in particular, control of the constraint element(s) and retrieval of information provided by the sensor(s), and in that the device includes a support bar 6 to facilitate the subject remaining upright during the use of the training and / or rehabilitation device 1.

[0105] It should be noted that in order to show the different components of the constraint element, the first stops of the first and second supports 10, 20, the drive device and / or rehabilitation 1 as illustrated in figures 4 to 5D presents its lateral walls removed.

[0106] The training and / or rehabilitation device 1 according to the present embodiment thus has a frame of profiles defining a general rectangular parallelepiped shape, the support profiles of the base together defining the bearing surface 5.

[0107] On a raised surface comprising the first and second supports 10, 20, the training and / or rehabilitation device 1 has two openings 6A, each extending into a tubular portion forming a respective cavity to accommodate an upright of the support bar 6. Thus, when its uprights have their ends accommodated in the openings 6A, the support bar 6 is fixed to the rest of the training and / or rehabilitation device 1 and thus provides a stable grip for the subject

[0108] Furthermore, while this support bar 6 allows the subject to secure themselves during the use of the training and / or rehabilitation device 1, it also allows for use in an alternative standing configuration, which consists of performing the exercises on only the first foot PL. Such single-foot use significantly increases the load on the exercised foot and raises the difficulty of the exercise. This configuration is particularly suitable for a healthy foot to train its reactivity and power in response to an inversion.

[0109] For reasons of simplification, the training and / or rehabilitation device 1 according to this second embodiment is shown without the support bar in figures 5A to 5D.

[0110] As can be seen in Figures 5C to 6, the stress element comprises: - a first, a second, a third and a fourth elastic return element 181, 182, 183, - the engagement system 185 configured to engage each of the elastic return elements 181, 182, 183 with the first and second supports 10, 20, - the control module, not shown, arranged to control the 185 engagement system and thus allow the subject or the physiotherapist to adjust the force of the constraint.

[0111] In this second embodiment, the first to fourth elastic return elements are constant force springs in order to provide a substantially constant stress during the entire movement of the first support 10. Of course, alternatively, the elastic return elements 181, 182, 183 can be of another type, such as helical springs, without departing from the scope of the invention.

[0112] As illustrated in [Fig. 6], the engagement system 185 comprises: - a 185B shuttle arranged to slide relative to the support surface 5 cor- corresponding to a support plate 186, - a first transmission belt 185A and a first pulley associated with it coupled with the first support 10, - a second 185A transmission belt and a second pulley coupled to it with the second support 20, - a first and a second electromagnetic actuator 185C arranged to allow the coupling of the shuttle 185B with respectively the first belt 185A, and therefore with the first support 10, the second belt, and therefore the second support 20, - a third to a sixth electromagnetic actuator 185D arranged to couple respectively the first to the fourth elastic return element 181, 182, 183 with the shuttle 185B.

[0113] It will be noted that in [Fig.6], only the fourth electromagnetic actuator 185D couples the second elastic return element 182, here a constant force spring, with the shuttle 185B, the shuttle 185B being itself coupled by the first electromagnetic actuator 185C with the first belt 185A and therefore with the first support 10.

[0114] Thus, with such a configuration, the third to sixth electromagnetic actuators 185D allow the shuttle 185B to be coupled with the various elastic return elements 181, 182, 183 according to the desired value of the constraint force. Thus, once the shuttle 185B is coupled to the first or second belt 185A, by means of the first or second electromagnetic actuator 185C, the pivoting of the corresponding support 10, 20 causes the shuttle to move and therefore the application of the constraint force exerted by the elastic return elements of said support 10, 20.

[0115] The control module can also be configured to control the first locking element to allow the first support 10 to move from a rest position, in which it is in its rest position, to a configuration in which it is free to pivot and is subjected to any constraint force exerted by the constraint element. Accordingly, the control module can also be configured to control the second locking element to allow the second support 20 to move from a rest position, in which it is in its rest position, to a configuration in which it is free to pivot and is subjected to any constraint force exerted by the constraint element.Thus, the therapist and / or the subject are able to choose the support 10, 20, and therefore the foot PI, P2, that they wish to use for training and / or proprioception work, and the force of constraint exerted on said support 10, 20, by simple communication with the control module. To do this, the module of... The command may be capable of communicating according to a communication protocol, advantageously wirelessly, with a computer device of the physiotherapist or the subject such as a computer, a smartphone or a tablet.

[0116] Figures 5C to 5D also show the first stop 12 of the first support 10. This first stop is arranged to intercept the first support 10 when its pivoting tends to exceed a threshold value for the inverted pivoting of the first support 10. This threshold value for inverted pivoting can, for example, be 35°. It should be noted that, as mentioned above, this threshold value for inverted pivoting can be adjusted to allow for adjustment by the physiotherapist and / or the patient. While such adjustment can be manual, for example by a screw-locking system for the first stop 12, according to an advantageous embodiment of the invention, this adjustment can also be made using a dedicated actuator, thus allowing adjustment via the control module.As specified in the configurations of figures IA and IB, the training and / or rehabilitation device 1 also includes the second stop, not shown, to allow a limitation of the eversion pivoting of the first support 10.

[0117] Of course, in order to limit the pivoting of the second support 20, the training and / or rehabilitation device 1 also includes a first and a second stop 22 for the second support 20, only the first stop being illustrated, presenting a configuration similar to that of the first and second stops 12 of the first support 10.

[0118] As discussed in the first embodiment of the training and / or rehabilitation device 1, each of the first and second supports 10, 20 can be equipped with sensors capable of providing information relating to a positioning and / or angular displacement of said support 10, 20 with respect to the support surface 5. Each of these sensors is advantageously arranged to communicate with the control module so that said information relating to the positioning and / or angular displacement of the first and second supports 10, 20 can be provided to the physiotherapist and / or the subject, for example, by means of a communication of this information, or of values ​​determined from this information, to the computer device of the physiotherapist or the subject.

[0119] With such a configuration, the training and / or rehabilitation device 1, particularly through the presence of the control module, can enable the implementation of a control method as described in the first embodiment, with the additional: - during step B of releasing the first support 10 from its rest position, the release of the first support 10 is carried out by a command of the locking system by the control module, the constraint force applied by the element of constraint having been previously adjusted, for example through this same control module, - during step D of detection of the return of the first support 10 to the rest position and of the possible step C of detection of the maximum angular position in inversion, this return and this possible maximum position are detected by the sensor(s) associated with the first support 10, the information provided by the sensor(s), or the values ​​determined from this information, can be transmitted to the physiotherapist or to the subject.

[0120] Figure 7 illustrates a training and / or rehabilitation device 1 according to a third embodiment of the invention in which the first and second support 10, 20 are arranged independently of each other and in which the first and second fixing system 15', 17A, 17B, 25', 27A, 27B include a third semi-enclosing wedge 15', 25', i.e. partially surrounding the foot PI, P2, in place of the strap 15, 16, 25, 26.Thus, a training and / or rehabilitation device 1 according to a third embodiment differs from a device according to the variant of the first embodiment in that the training and / or rehabilitation device 1 comprises a first part IA associated with the first support 10 and a second part IB associated with the second support 20 and in that, similarly to the training and / or rehabilitation device 1 according to the second embodiment, each of the first and second parts comprises a dedicated control module allowing control of the training and / or rehabilitation device 1 and retrieval of information provided by the sensor(s) present in the training and / or rehabilitation device 1.

[0121] According to this third embodiment, each of the first part IA and the second part IB of the training and / or rehabilitation device has a respective support surface and is arranged in such a way that when the first and second parts IA, IB are arranged on the same flat ground, the first and second supports 10, 20 in a resting configuration are arranged parallel to the two support surfaces and to the ground at the same distance from the ground.

[0122] In addition to a configuration of the first and second support 10, 20 independent of each other, each of the first and second part IA, IB includes a respective constraint element arranged to exert a constraint force on the pivoting of the support 10, 20 corresponding to a direction of inversion rotation of the foot PI, P2 of the subject intended to be supported on said support.

[0123] As shown in [Fig. 7], the first fastening system 15', 17A, 17B comprises, in addition to the first and second wedges 17A, 17B, a third wedge 15' in place of the first strap 15, 16. Accordingly, this third wedge 15' can be shaped to partially surround a part of the forefoot and / or the The instep is positioned to allow the first foot PI to be placed on the first support 10 when the second wedge 17B comes into contact with the first PI. To ensure good support by the third wedge 15', this wedge may comprise, similarly to the support portion 15 of the first strap in the first and second embodiments, an external part 15A and an internal part 15B following one another in a lateral direction of the first foot PI, each comprising a respective comfort foam.

[0124] Such a training and / or rehabilitation device 1, by virtue of the presence of the control module, also allows the training and / or rehabilitation device to implement a control method as already described in the second embodiment.

Claims

1. Demands Training and / or rehabilitation device (1) for at least one ankle of a subject, the training and / or rehabilitation device (1) comprising: - at least one support surface (5) by which the training and / or rehabilitation device (1) is intended to be supported by a floor, - a first support (10) intended to support a first foot (PI) of the subject corresponding to the first ankle, the first support (10) being mounted movable relative to the bearing surface (5) and presenting a first bearing face (10A) for the first foot, - a second support (20) intended to support a second foot of the subject and having a second bearing surface (20A), the first support (10) and the second support (20) being arranged, in at least one configuration of the training and / or rehabilitation device (1) in which the first and second bearing surfaces (10A, 20A) are parallel to the bearing surface (5), at the same distance from the at least one bearing surface (5) so that the first and second bearing surfaces (10A, 10B) are at a substantially equal height relative to the ground in said at least one configuration, the training and / or rehabilitation device being characterized in that the first support (10) comprises a first fixing system (15, 16, 17A, 17B) of the first foot (PI) on the first support (10) shaped to fix a first orientation and a first positioning of the first foot relative to the first support (10), said first orientation and first positioning defining a first external direction of the first foot (CC) corresponding to a projection of an external edge of a midfoot of the first foot (PI) onto the first support face (10A), the second support (20) having a positioning system (25A, 25, 26, 27) for the second foot (P2) in order to define a second orientation and a second positioning of the second foot (P2) on the

2.

3. second support (20), the first support (10) being mounted pivoting relative to the support surface (5) around a single first pivot axis (BB) substantially parallel to the support surface, the first pivot axis (BB) making an angle (|3) with respect to the first external direction (CC) which is included in a range between 13° and 33°, or even between 18° and 28° and advantageously between 21° and 25° along a direction of rotation going from the inside to the outside of the first foot (PI), and intercepting a projection (Tl) of a heel of the subject's first ankle onto the first support face when the orientation of his first foot is fixed by the first fixing system, Training and / or rehabilitation device (1) for at least one first ankle of a subject according to claim 1, wherein the positioning system of the second foot (P2) comprises a second fixation system (25, 26, 27A, 27B) of the second foot on the second support (20) shaped to fix the second orientation and second positioning of the second foot relative to the second support (10), said second orientation and second positioning defining a second external direction (C'-C') of the second foot corresponding to a projection of an external edge of a midfoot of the second foot (P2) onto the second support face (20A), wherein the second support (20) is mounted pivotally relative to the support surface (5) about a single second pivot axis (B'-B') substantially parallel to the support surface,the second pivot axis (B'-B') making an angle ([3') with respect to the second external direction (C'-C') which is included in a range between 13° and 33°, or even between 18° and 28° and advantageously between 21° and 25° along a direction of rotation going from the inside to the outside of the second foot (P2), and intercepting a projection (T2) of a heel of the subject's second ankle onto the supporting face when the orientation of his second foot (P2) is fixed by the second fixation system, the training and / or rehabilitation device (1) preferably comprising a pivot locking system configured to allow pivot locking of the first support and the second support. Training and / or rehabilitation device (1) for at least one ankle of a subject according to claim 1, wherein the second support (20) is fixed to the moving surface support (5) with the second support face (20A) arranged parallel to the support surface (5).

4. Training and / or rehabilitation device (1) for at least one first ankle of a subject according to any one of claims 1 to 3 further comprising at least one first constraint element (181, 182, 183, 185) arranged to exert a constraint force on the pivoting of the first support (10) in a direction of inversion rotation of the first foot (PI) of the subject which is intended to be supported thereon, the at least first constraint element (181, 182, 183, 185) being preferably selected from the group of gravitational constraint elements, elastic constraint elements and electromagnetic constraint elements.

5. A training and / or rehabilitation device (1) for at least one first ankle of a subject according to any one of claims 1 to 4, wherein the first fixation system (15, 16, 17A, 17B) of the first foot on the first support (10) comprises a first strap (15, 16) arranged to maintain a forefoot of the first foot in contact with the first support face and at least one first wedge (17A) to which an external edge of the midfoot and / or a hindfoot of the first foot (PI) is intended to come into contact when supported by the first support face, wherein the first strap (15, 16) and the first wedge (17A) are preferably arranged to constrain a support of the first foot (PI) on the first support (10) and to constrain a support on an external side of the first foot (PI) so as to fix the first external direction (CC).

6. Training and / or rehabilitation device (1) of at least one first ankle of a subject according to claim 5, wherein the first fixation system (15, 16, 17A, 17B) further comprises a second wedge (17B) on which an inner edge of the midfoot and / or a hindfoot of the first foot (PI) is intended to come into contact when supported by the first bearing face (10A), wherein said second wedge (17B) is mounted movable relative to the first support (10), the first wedge (17A) being fixed to the first support (10).

7. A training and / or rehabilitation device (1) for at least one first ankle of a subject according to claim 5 or 6, wherein the first strap (15, 16) comprises a support portion (15) intended to to come to rest on an external part of the top of the forefoot of the first foot (PI) of the subject, said support portion (15) preferentially having an external part (15A) and an internal part (15B) following one another in a lateral direction of the first foot (PI) intended to be held by the strap going from the outside to the inside of said first foot (PI), the external part (15A) having a greater hardness than that of the internal part (15B).

8. A training and / or rehabilitation device (1) for at least one first ankle of a subject according to claim 4 taken alone or in combination with any one of claims 5 to 7, wherein the at least one first restraint element (181, 182, 183, 185) comprises at least one first elastic return element (181) and preferably a second elastic return element (182), or even a third or more elastic return elements, wherein the training and / or rehabilitation device (1) further comprises an engagement system (185) configured to engage said at least one first elastic return element (181) with the first support (10), and wherein, when the first restraint means (181, 182, 183, 185) comprise a second elastic return element (182), or even a third elastic return element (183),The engagement system (185) has a configuration in which it engages the second elastic return element (182), or even the third elastic return element (183), with the first support (10) or more.

9. Training and / or rehabilitation device (1) of at least one first ankle of a subject according to any one of claims 1 to 8 further comprising at least one sensor capable of providing information relating to a positioning and / or angular displacement of the first support with respect to the bearing surface (5).

10. A training and / or rehabilitation device (1) for at least one first ankle of a subject according to any one of claims 1 to 9, further comprising a first locking element configured to lock the first support in a resting position in which the first bearing face (10A) is parallel to the bearing surface (5), the first locking element preferably being automated such as to permit a command to move the locking system from an unlocked configuration in which the first support is free to leave the resting position to a locked configuration. locked configuration in which the first support is maintained in the rest position, in which, when the training and / or rehabilitation device (1) is according to claim 2 and includes a pivoting locking system, the pivoting locking system includes said first locking element.

11. A training and / or rehabilitation device (1) for at least one first ankle of a subject according to any one of claims 1 to 9 further comprising at least one first stop configured to limit the angle of rotation of the first support (10) with respect to the bearing surface (5), said stop preferably providing a rotation stop along the direction of inversion rotation of the first foot (PI) of the subject which is intended to be supported by the first support (10), the at least one first stop preferably being adjustable.

Images