JP2020022586A - Jig for strengthening lower limb muscle force and device for strengthening lower limb muscle force - Google Patents

Abstract

To provide a jig for strengthening lower limb muscle force, a jig that even an older person or a physically impaired person can independently strengthen lower limb muscle force for safe and smooth walking without anybody's help.SOLUTION: The jig includes: a footrest 1 for placing a foot of a person; a first roller 3 that rotates around a shaft orthogonal to the center line which connects the toe side end part and the heel side end part of the footrest and that is arranged in the rear of the heel side end part of the footrest; and a second roller 4 that is arranged under the center part of the footrest. The first roller is formed so that it restricts movement of the footrest in a direction from the toe side end part toward the heel side end part and that it enables rotation in one direction only in a manner allowing the movement of the footrest in a direction from the heel side end part toward the toe side end part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a jig for strengthening lower limb muscle strength and an apparatus for strengthening lower limb muscle strength. The present invention is useful for a case where a person with a weak function is strengthening lower limb muscle strength autonomously while sitting in a wheelchair.

  In addition to those who have been using wheelchairs such as the nursing care facilities described above for a long period of time and who are losing walking function due to lower limb muscle strength, or those who are older and have weak walking function, cerebrovascular disorders due to stroke etc. When the onset occurs or the walking function is lost due to an accident or the like, it is necessary to perform rehabilitation (hereinafter, abbreviated as rehabilitation) for function recovery. Conventionally, most of this type of rehabilitation is performed using tools such as a parallel bar, a handrail, and a walking stick. In rehabilitation using such a tool, it is necessary to attach an attendant for safety. In addition, for safety reasons, location restrictions must be imposed. For this reason, it is difficult for the patient to perform rehabilitation independently at any time at any time.

  In particular, in rehabilitation using tools such as parallel bars, handrails, walking sticks, etc., biceps femoris, tibialis anterior, gluteus medius, and soleus, which are essential for safe and smooth independent walking. It is difficult to strengthen muscles such as muscles effectively. Here, the biceps femoris is a muscle necessary for lifting the foot. In addition, the tibialis anterior muscle is a muscle necessary for the kicking exercise, and if it is weak, the stride during walking becomes small. The gluteus medius is a muscle necessary for facilitating walking while shifting weight to the left and right, and the soleus is a muscle for preventing the upper body from falling forward.

  On the other hand, a foot-row type wheelchair using a wheelchair has been proposed as a device for performing rehabilitation independently of a patient, which is relatively unaffected by human and location restrictions as described above (for example, see Patent Document 1). . This kind of pedaling wheelchair has a rotating mechanism with a pedal installed in the front part of the wheelchair, and instead of moving by turning the wheel of the wheelchair by arm strength, stepping on the pedal using the muscle strength of the lower limb In this way, the wheelchair is moved. By moving the wheelchair by stepping on the pedal in this way, the lower limb muscle strength is enhanced.

  However, the wheelchair provided with the rotation mechanism as described above not only becomes large in itself, but also needs a certain wide area in order to ride around the wheelchair and strengthen the lower limb muscle strength. Furthermore, since it is assumed that the rehabilitation patient using the wheelchair has lower limb muscle strength enough to depress the pedal, the greatest problem is that the rehabilitation patient's symptoms and elderly people often cannot use it. Exists.

JP 2015-146879 A

  In view of the above prior art, the present invention provides a jig for strengthening lower limb muscle strength capable of independently strengthening lower limb muscles for performing walking safely and smoothly without requiring human intervention even for elderly or disabled people. And an apparatus for strengthening lower limb muscle strength.

A first aspect of the present invention that achieves the above object is:
A footrest for placing human feet,
It rotates around an axis perpendicular to a center line connecting the toe side end of the footrest and the heel side end of the footrest, and is disposed behind the heel side end of the footrest. A first roller,
A second roller that rotates around the axis and is disposed below a central portion of the footrest;
The first roller restrains the movement of the footrest in a direction from the toe side end to the heel side end, while restricting a movement from the heel side end to the toe side end. It is characterized in that the footrest is formed to be rotatable in only one direction so as to be allowed to move.

A second aspect of the present invention provides:
In the jig for strengthening lower limb muscle strength described in the first aspect,
A third roller that rotates around the axis is provided closer to the end of the foot than the second roller,
The third roller restricts movement of the footrest in a direction from the heel side end to the toe side end, while restricting a movement from the toe side end to the heel side end. It is characterized in that the footrest is formed to be rotatable only in the opposite direction to the one direction so as to allow the movement.

A third aspect of the present invention provides:
In the jig for strengthening lower limb muscle strength described in the first or second,
A frame on which the first roller and the second roller, or the first roller, the second roller, and the third roller are mounted;
The heel-side end of the footrest is attached to the frame via a hinge portion extending in the axial direction, so that the footrest is formed rotatable with respect to the frame, and the footrest is formed from the second roller. Also, the footrest is formed so as to be pushed upward by an elastic member disposed on the frame at the toe side.

According to a fourth aspect of the present invention,
The present invention is characterized in that the jig for enhancing muscle strength of the lower limb described in any one of the first to third aspects is combined with a chair movably formed by a roller.

According to a fifth aspect of the present invention,
In the lower limb muscle strength enhancing device according to the fourth aspect,
The chair is a wheelchair.

  According to the present invention, the chair can be moved by stretching the lower limb while sitting on a chair such as a wheelchair with the jig for strengthening the lower limb muscle strength attached to the foot. That is, by obtaining the moving power of the chair by the expansion and contraction of the lower limb, the predetermined lower limb muscle can be strengthened. As a result, muscles such as biceps femoris, tibialis anterior, gluteus medius, and soleus necessary for smooth walking can be effectively strengthened, and effective recovery of the walking function can be achieved. That is, even for elderly people with weak lower limb muscles, the necessary lower limb muscle strength can be strengthened anytime and anywhere, which can contribute to effective rehabilitation.

BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view which shows the whole jig | tool of reinforcement of lower limb muscular strength which concerns on embodiment of this invention. FIG. 2 is a schematic view showing an aspect when the reinforcing jig shown in FIG. 1 is used. FIG. 2 is a schematic view showing an aspect when the reinforcing jig shown in FIG. 1 is used. FIG. 2 is a schematic view showing an aspect when the reinforcing jig shown in FIG. 1 is used. BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows the reinforcement apparatus of the leg muscle strength which concerns on embodiment of this invention in the mode at the time of the use.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an entire jig for strengthening lower limb muscle strength according to an embodiment of the present invention. As shown in the figure, the reinforcing jig I according to the present embodiment has a footrest 1, a frame 2, and first to third rollers 3, 4, and 5. The footrest 1 is a sandal-shaped member, and has a heel regulating member 6, a side surface regulating member 7, a fastening band 8, and a toe regulating member 9.

  The heel regulating member 6 is in contact with the heel of the foot placed on the footrest 1 to regulate the position of the heel. The side surface regulating member 7 is in contact with both side surfaces of the foot, and regulates the position of the left and right side surfaces. The fastening band 8 fixes the instep of the foot to the footrest 1 with a Velcro (registered trademark) -like member. The toe regulating member 9 is brought into contact with the toe placed on the footrest 1 to regulate the position of the toe.

  The footrest 1 has a heel-side end rotatably attached to the frame 2 via a hinge 10. Here, the hinge portion 10 is perpendicular to a center line direction (XX direction in FIG. 1; hereinafter the same) connecting the end portion of the footrest 1 and the end portion of the heel side (Y in FIG. 1). (Y direction). As a result, the footrest 1 rotates about the shaft 10a as a rotation center, and the inclination angle with respect to the frame 2 can be continuously changed. Here, a spring 11 which is an elastic member is disposed on the front surface of the frame 2, and the upper end of the spring 11 is in contact with the back surface of the footrest 1. Therefore, by pushing the toe side of the footrest 1 downward in FIG. 1 against the spring force of the spring 11, the footrest 1 is rotated clockwise in FIG. obtain. In the present embodiment, the footrest 1 is inclined with respect to the frame 1 by being supported from below by the spring 11, but the inclination angle in this case is in an initial state (the weight other than the weight of the footrest 1 on the spring 11). In a state where no load is applied), the angle is preferably about 20 to 30 °. When the angle in this initial state is 20 to 30 °, during the rehabilitation (to be described in detail later) using the reinforcing jig I according to the present embodiment, the reinforcing jig I is smoothly applied without applying an unnecessary load to the lower limb. Can be moved.

  The first to third three rollers 3, 4, 5 are distributed and arranged at three places in the XX direction of the frame 2. More specifically, the first roller 3 is located behind the heel end of the footrest 1, the second roller 4 is located below the center of the footrest 1, and the third roller 5 is located at At the tip of the frame 2 on the foot side of the second roller 4, each is rotatably attached to the frame 2.

  Here, the first roller 3 restricts the movement of the footrest 1 in a direction from the toe side end toward the heel side end (leftward in FIG. 1 along the XX direction), The structure allows the footrest 1 to move in the direction from the heel end to the toe end (rightward in FIG. 1 along the XX direction). Conversely, the third roller 3 restrains the movement of the footrest 1 in the right direction in FIG. 1 along the XX direction, and the foot in the left direction in FIG. 1 along the XX direction. The mounting table 1 is configured to be allowed to move. Such a structure, for example, allows the rotation shafts 3a of the first roller 3 and the rotation shaft 5a of the third roller 5 to be supported by a one-way clutch bearing that allows rotation in opposite directions and restricts rotation in the opposite direction. It can be realized well. Thus, the first roller 3 is rotatable in one direction around a rotation axis 3a extending in the YY direction, and the third roller 5 is similarly rotated by the first roller 5 around a rotation axis 5a extending in the YY direction. 3 is rotatable in the opposite direction. Further, the second roller 4 freely rotates in both directions.

  FIGS. 2 and 3 are schematic diagrams showing a mode when the reinforcing jig I according to the present embodiment is used. FIG. 2 shows a mode when the first roller 3 is used by being brought into contact with the floor surface 12. Indicates an aspect in the case where the third roller 5 is used in contact with the floor surface 12.

  As shown in FIG. 2, when the first roller 3 is brought into contact with the floor surface 12, as shown in FIG. 2A, the rotation of the first roller 3 in the counterclockwise direction in FIG. As a result, the movement of the reinforcing jig I (footrest 1) from the toe side end to the heel side end of the footrest 1 is restrained, and as shown in FIG. The rotation of the first roller 3 in the clockwise direction in the figure is allowed. As a result, the movement of the reinforcing jig I (footrest 1) from the heel side end of the footrest 1 to the toe side end is restricted. That is, the movement of the reinforcing jig I in the direction of arrow A in FIG. 2A is restricted, while the movement of the reinforcing jig I in the direction of arrow B in FIG. 2B is allowed.

  As shown in FIG. 3, when the third roller 5 is brought into contact with the floor surface 12, the clockwise rotation of the third roller 5 is restricted as shown in FIG. As a result, the movement of the reinforcing jig I from the heel side end to the toe side end of the footrest 1 is restrained, and as shown in FIG. Counterclockwise rotation is allowed. As a result, the movement of the reinforcing jig I from the toe side end of the footrest 1 to the heel side end is allowed. That is, while the movement of the reinforcing jig I in the direction of arrow B in FIG. 3A is restricted, the movement of the reinforcing jig I in the direction of arrow A in FIG. 3B is permitted.

  The reinforcing jig I is used by an elderly person or a disabled person (hereinafter, referred to as an elderly person) sitting on a wheelchair. Therefore, an example of a wheelchair in this case will be described with reference to FIGS.

  As shown in FIGS. 4 and 5, the wheelchair II includes a chair-shaped structure 21 configured by combining aluminum alloy round pipes, a pair of drive wheels 22, a pair of casters 23, a seat surface 24, and a back surface 25. , A pair of arm supporters 26 and the like. Strengthening of lower limb muscle strength by combining the wheelchair II and the reinforcing jig I is performed in the following manner.

<First aspect>
In the first embodiment, as shown in FIG. 4, the lower limb muscle strength is strengthened in a state where the first roller 3 of the reinforcing jig I is in contact with the floor surface 12. That is, the aged III or the like who strengthens the lower limb muscles wears the reinforcing jig I on the toes while sitting in the wheelchair II. In this state, as shown in FIG. 4A, the first roller 3 of the reinforcing jig I attached to the forefoot extended forward is brought into contact with the floor surface 12. In this state, the movement of the reinforcing jig I rearward (to the left in FIG. 4) is restricted by the first roller 3. In this state, as shown in FIG. 4B, the wheelchair II is moved forward (in the direction of arrow B) by pulling the tip of the foot in the direction of arrow C. By moving the wheelchair II, the load caused by the moving operation acts on the lower limbs of the elderly III, etc. during the entire period. As a result, the lower limb muscle strength is reinforced by repeating the operation.

<Second aspect>
In the second aspect, as shown in FIG. 5, the lower limb muscle strength is strengthened in a state where the third roller 5 of the reinforcing jig I is in contact with the floor surface 12. That is, the elderly person III who strengthens the lower limb muscles wears the reinforcement jig I on the toes in an initial state of sitting in the wheelchair II. In this state, as shown in FIG. 5A, the third roller 5 of the reinforcing jig I attached to the toe extending downward is brought into contact with the floor surface 12. In this state, the movement of the reinforcing jig I forward (to the left in FIG. 4) is restricted by the third roller 5. In this state, as shown in FIG. 5B, the wheelchair II is moved backward (in the direction of arrow A) by extending the toes in the direction of arrow D. By moving the wheelchair II, the load accompanying the moving operation acts on the lower limbs of the elderly III etc. during the entire period. As a result, by repeating the operation, the lower limb muscle strength is reinforced as in the first embodiment.

  As described above, according to the present embodiment, the energy when the wheelchair II moves forward and backward by turning the drive wheel 22 with the arm strength is replaced by utilizing the muscle strength of the lower limb by using the reinforcing jig I. Muscle strength can be effectively enhanced.

  Further, in this embodiment, since the spring 11 is provided, the toe of the footrest 1 is pressed against the spring force of the spring 11 in the state shown in FIG. Muscle strength can also be enhanced by turning the table 1 clockwise in FIG. In this case, it is particularly suitable for strengthening the soleus muscle.

  In the above-described embodiment, the third roller 5 is also provided, but the third roller 5 is not always necessary. This is because the reinforcement movement shown in FIG. 4 can be performed if the first and second rollers 3 and 4 are provided.

  Further, in the above-described embodiment, the footrest 1 is formed so as to be rotatably inclined to the frame 2 via the hinge part 10, but the structure is not limited to this. The footrest 1 and the frame 2 may be integrally formed. However, the operability during use is improved in the case of a structure in which the frame 2 is inclined to some extent (preferably 20 to 30 °).

  Further, the provision of the spring 11 is optional. This is because the lower limb muscles shown in FIG. 4 can be strengthened if at least the first and second rollers 3 and 4 are provided.

  Although the chair in the above embodiment is a wheelchair, it is not limited to this. An ordinary chair may be used as long as it has a plurality of rollers and a structure in which the seat surface on which the elderly person III sits moves via each roller.

I Jig for strengthening lower limb muscle strength
II Wheelchair
III Elderly person 1 Footrest 2 Frame 3, 4, 5 (1st-3rd) roller 10 Hinge part 11 Spring 12 Floor

Claims (5)

A footrest for placing human feet,
It rotates around an axis perpendicular to a center line connecting the toe side end of the footrest and the heel side end of the footrest, and is disposed behind the heel side end of the footrest. A first roller,
A second roller that rotates around the axis and is disposed below a central portion of the footrest;
The first roller restrains the movement of the footrest in a direction from the toe side end to the heel side end, while restricting a movement from the heel side end to the toe side end. A jig for strengthening lower limb muscle strength, wherein the jig is formed so as to be allowed to rotate in only one direction so as to allow the movement of the footrest. The jig for strengthening lower limb muscle strength according to claim 1,
A third roller that rotates around the axis is provided closer to the foot end than the second roller.
The third roller restrains movement of the footrest in a direction from the heel side end toward the toe side end, while restricting movement of the footrest from the heel side end to the heel side end. A jig for strengthening lower limb muscle strength, wherein the jig is configured to be rotatable only in the opposite direction to the one direction so as to allow the movement of the footrest. In the jig for strengthening lower limb muscle strength according to claim 1 or claim 2,
A frame on which the first roller and the second roller, or the first roller, the second roller, and the third roller are mounted;
The heel-side end of the footrest is attached to the frame via a hinge portion extending in the axial direction, so that the footrest is formed rotatable with respect to the frame, and the footrest is formed from the second roller. A jig for strengthening lower limb muscle strength, characterized in that the footrest is pressed upward by an elastic member disposed on the frame at the toe side.   An apparatus for strengthening lower limb muscle strength, wherein the jig for strengthening lower limb muscle strength according to any one of claims 1 to 3 is combined with a chair movably formed by a roller. The lower limb muscle strength enhancing device according to claim 4,
An apparatus for strengthening lower limb muscle strength, wherein the chair is a wheelchair.

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