JP6050913B1 - Exercise equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: (1) The foot and the footrest plate are not displaced even when the turning amount of the foot around the heel increases, and (2) the footrest plate so that the user can use it in a supine posture. (3) An exercise device suitable for external rotation of the legs, which allows the user to adjust the urging force. SOLUTION: A base 11 is provided with a pivotable footrest plate 12. The footrest plate 12 has a heel support 13 for engaging a heel of a foot in a turning direction, and a heel is engaged with the heel support 13. A holding pin 14 sandwiched between the toes, and a pivot shaft 15 is set just below the heel of the foot that is engaged with the heel support 13, and applies an inward biasing force at least when the leg is rotated outwardly. The exercise apparatus 1 is provided with an elastic belt 16. [Selection] Figure 1

Description

  The present invention relates to an exercise device suitable for training a hip external rotator muscle group.

  The hip external rotator muscle group is an important muscle that supports the hip joint in a normal positional relationship, but it is said that it is difficult to train because it is located deep from the body surface. For this reason, an exercise device for training the hip joint external rotator muscle group has been proposed (Patent Document 1). Patent Document 1 sets an axis of rotation (rotation center) between the toes of the foot (front foot) and the heel (rear foot) for the purpose of correcting the O leg, and the outward biasing force on the toe (Resisting force) and an inward urging force are applied to the heel, respectively, and an exercise device (an O-leg training device) is disclosed in which the toes are easily applied outward and the heel is applied inward (Patent Document 1 / [ Claim 1]).

  The exercise device disclosed in Patent Document 1 has a foot placed on a footrest plate (sole plate) that is pivotally supported on a base (a sole plate base), and a torsion coil spring (kick spring) that also serves as a pivot shaft. A biasing force is applied to the foot through the above (Patent Document 1, [0018]). In addition, examples of means for applying an urging force include a coil spring (pull spring) and a viscoelastic material (Patent Documents 1 and [0019] [0020]). The exercise apparatus disclosed in Patent Document 1 has an effect of improving or preventing drooping of the hips by training the hip external rotator muscle group in the process of correcting or preventing progression of the O leg (Patent Document 1, [0017]). The exercise device disclosed in Patent Document 1 is

JP 2009-125557 A

  The exercise device disclosed in Patent Document 1 mainly focuses on the improvement of the leg or prevention of the progression of the leg, so that the toe and the heel of the foot are turned in opposite directions so as to move the knee joint inward. A swivel axis is provided between the heels. In this case, the turning amount of the foot around the heel is not so large. In the exercise apparatus similar to Patent Document 1, when the focus is on training the hip external rotator muscle group, the pivot axis is set directly below the heel of the footrest so as to increase the pivot amount of the foot centered on the heel. It is desirable. Even if the position of the pivot axis is changed, an urging force can be applied in the same manner as in Patent Document 1, so that an exercise device suitable for the external rotation of the leg should be able to be configured.

  Here, the exercise device disclosed in Patent Document 1 does not fix the foot to the footrest plate. This seems to think that if the exercise device disclosed in Patent Document 1 is used only in a standing posture, the foot and the footrest plate do not shift due to friction. However, there is a possibility that the foot and the footrest plate are displaced only by placing the foot on the footrest plate in a standing posture. In particular, when the swivel axis is set directly below the heel, since the urging force is applied to the footrest plate, there is a high possibility that the toe that has revolved greatly will deviate from the footrest plate. Accordingly, a structure or configuration of a footrest plate that can increase the amount of turning of the foot around the heel without shifting the foot is studied.

  In addition, when it is desired to burden the user with only the external rotation of the leg, it is desirable that the user can turn his / her foot in a state where the user is placed in a supine posture and the burden on the upper body is eliminated. In this case, since it is no longer possible to prevent the displacement of the foot and the footrest plate due to friction, a structure or configuration for fixing the foot to the footrest plate is considered. Here, the structure or configuration for fixing the foot to the footrest plate does not interfere with the structure or configuration of the footrest plate that can increase the amount of turning of the foot around the heel without shifting the foot, but rather the structure or configuration described above. It is preferable that it can be used together.

  When the hip external rotator muscles are trained by external rotation of the legs, excessive force applied to the legs may only damage the hip external rotator muscles. It is desirable to be able to adjust the presence or absence or size. From this, when the urging force is generated using a pre-installed torsion coil spring or coil spring as in the exercise device disclosed in Patent Document 1, it is difficult to adjust the urging force as well as to remove the urging force. . Therefore, a structure or configuration in which the user can easily adjust the urging force is studied.

  From the above, in order to train the hip joint external rotator muscles by external rotation of the legs, the use of the exercise device disclosed in Patent Document 1 can be considered. (1) Even if the amount of turning of the foot around the heel increases. A structure or configuration in which the foot and the footrest plate are not displaced, (2) a structure or configuration in which the foot is fixed to the footrest plate so that the user can use it in a supine posture, and (3) the user adjusts the urging force Each possible structure or configuration needs to be considered. Then, in order to develop the exercise equipment provided with the structure or structure of said (1)-(3), it examined.

What was developed as a result of the study was that the base was provided with a pivotable footrest plate, and the footrest plate had a footrest that hooked the footrest in the turning direction and a foot that hooked the footrest on the footrest. And a holding pin that is sandwiched between the fingers, a turning shaft is set immediately below the heel of the foot engaged with the heel support, and an urging means for applying an inward urging force when at least the leg is rotated outwardly is provided. is, by pivoting against the biasing force of the footrest plate around the foot heel is exercise equipment you characterized in that train the hip outside rotators group by a load applied to the legs of lateral rotation movement. The exercise apparatus of the present invention is used in two symmetrical units having one footrest plate with respect to the base, or one pair having a pair of left and right footrest plates with respect to the base as will be described later. Or use it in other structural units.

  The exercise device of the present invention is used in a standing posture of a user, for example, with the swivel surface of the footrest plate parallel to the floor surface and the base laid on the floor surface. The user hooks the heel on the heel rest, pinches the holding pin with fingers, fixes the front and back of the foot to the footrest plate, and shifts the position of the foot and the footrest plate in the turning direction of the footrest plate. To prevent. The user rotates the toes outward by turning the toes outward about the heel, with the foot and the footrest plate not misaligned together. The outward rotation movement of the leg is against the urging force because the urging force exerts the urging force in the internal rotation direction of the leg on the footrest plate. The footrest plate may be able to turn inward as long as it can turn outward. However, in order to avoid unnecessary internal rotation of the foot, a stopper that engages with the footrest plate may be provided on the base to suppress inward turning.

  The footrest plate can adjust the distance between the heel support and the holding pin according to the size of the user's foot when the holding pin is made to approach and separate from the heel support. In this case, in addition to the configuration in which only the holding pin is moved closer to and away from the footrest relative to the footrest plate, for example, the footrest plate is divided into front and rear, and the holding pin is provided for the latter footrest plate provided with the footrest. Also included is a configuration in which the first half of the footrest plate is approached and separated. The holding pin that has finished adjusting the distance from the heel support does not have to be fixed in position as long as it engages in the turning direction of the footrest plate. However, it is preferable that the holding pin whose distance from the heel rest has been adjusted so that it can be stably held between the toes without rattling.

  Further, when the footrest plate is provided with a fixing belt that hangs around the foot, the integrity of the foot and the footrest plate is ensured regardless of the posture of the footrest plate. This means that the swivel surface of the footrest plate is perpendicular to the bed and the base can be used standing on the bed, that is, the user can only perform the external rotation of the leg in a supine posture. The number and the mounting position of the fixing belt are not limited as long as the feet can be integrated with the footrest plate. For example, there is an instep fixing belt that crosses the footrest plate from side to side and hangs around the instep, and an ankle fixing belt that crosses the heel support from side to side and hangs around the ankle. The fixing belt can be exemplified by a configuration in which a pair of left and right belts are detachable with a hook-and-loop fastener.

  The urging means uses a torsion coil spring that also serves as the pivot shaft or is externally fitted to the pivot shaft, or uses a coil spring that pushes the footrest plate in the internal rotation direction of the leg, like the exercise device disclosed in Patent Document 1. It is possible to do. However, from the viewpoint of the presence / absence of the urging force and the adjustment, there are a pair of left and right footrest plates. The elastic belt that spans the latching projections on the left and right footrests can be removed if the user has difficulty in external rotation of the legs if there is an urging force, or can be extended if the legs have sufficient muscle strength. It can be exchanged for something with a different level of power.

  Further, the footrest plate has a plurality of latching protrusions on one or both of the left and right sides, and it is preferable that the stretchable belt is bridged between the selected left and right latching protrusions. Since the amount of expansion and contraction of the elastic belt changes according to the interval between the selected latching protrusions, the urging force applied to the footrest plate can be adjusted. The urging force of the elastic belt is adjusted according to the amount of expansion and contraction, and even if the latching protrusion selected from the footrest plate that is not turning is not in a symmetrical position, the interval over which the elastic belt is bridged is the same. If there is, it will be the same. When the selected latching protrusion is in the left-right asymmetric position, when the left and right footrest plates are independently turned, there is a function of providing a difference in the urging force generated between the left and right footrest plates.

  According to the present invention, it is possible to provide an exercise device suitable for training a hip external rotator muscle group by external rotation of a leg. (1) The effect that the foot and the footrest plate do not shift even when the foot pivots around the heel is that the heel support for hooking the heel of the foot in the turning direction and the toe of the foot with the heel hooked on the heel support It is obtained by a footrest plate having a holding pin sandwiched between. If the holding pin is moved toward and away from the heel support, the distance between the holding pin and the heel support can be adjusted according to the user's foot while fixing the positional relationship of the heel support with respect to the pivot axis. It is possible to more reliably prevent the positional deviation from the plate.

  (2) The effect of fixing the foot to the footrest plate so that the user can use it in a supine posture is obtained by a fixing belt that hangs around the footrest plate. The fixing belt can be used together without interfering with the heel support provided on the footrest plate and the holding pin. In addition, the heel support and the holding pin ensure the integrity of the foot and the footrest plate in the turning direction, and the fixing belt exerts the function of fixing the foot to the footrest plate, so that the user can Exercise equipment can be used in a supine posture. The fixing belt exerts the function of improving the integrity between the foot and the footrest plate even when the exercise device is used in the standing posture of the user.

  (3) The effect that the user can adjust the urging force is that the elastic belt is stretched over the latching protrusions provided on the pair of left and right footrest plates, and the elastic belt is stretched over the latching protrusions selected from a plurality. Is obtained. The elastic belt can be removed from the latching protrusion to eliminate the urging force applied to the footrest plate, or the urging force can be adjusted by selecting the latching protrusion to be replaced or hung. The user can easily remove or replace the elastic belt or select the latching protrusion. Thus, the exercise apparatus of the present invention has an advantage that the user himself / herself can adjust the urging force applied to the footrest plate, and the user himself / herself can perform an external rotation motion of the foot with an appropriate load.

It is a perspective view showing an example of an exercise device to which the present invention is applied. It is a top view of the exercise device of this example. It is a side view of the exercise device of this example. It is a top view of the exercise device of the another example 1 which can adjust the space | interval of the left-right independent base. It is a top view of the exercise device of the other example 2 which can adjust the space | interval of a right-and-left footrest board. It is a side view showing the state where a user uses the exercise device of this example in a standing posture. It is a side view showing the state where a user uses the exercise device of this example in a supine posture. It is a top view showing the mounting state which fixed the leg mounted on the footrest board with the instep fixation belt and the ankle fixation belt. It is a side view showing the mounting state which fixed the foot | leg put on the footrest board with the instep fixing belt and the ankle fixing belt. It is a top view showing the state which opened both the left and right footrest board by the external rotation motion of both legs. It is a top view showing the state which opened only the left footrest board by the external rotation motion of only the left leg. It is a top view showing the state which changed both the latching protrusion which bridges an expansion-contraction belt, and opened both right and left footrest board by the external rotation motion of both legs.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, for example, the exercise device 1 of the present invention is symmetrical with a base 11 that is a substantially U-shaped plank in plan view, in which the plan view shape is a plank that is shaped like a human footprint. The footrest plate 12 is configured to be pivotably attached by a pivot shaft 15 set at a portion corresponding to the heel of the footrest plate 12. The footrest plate 12 can be swiveled to the left or right, but inward turning is restricted by a stopper pin 111 provided at a symmetrical position of the base 11. In the exercise apparatus 1 of this example, the main components (the base 11, the footrest plate 12, the footrest 13 and the holding pin 14) are made of wood, but they may be made of resin or metal. You may comprise combining.

  The base 1 is a substantially U-shaped wooden board in plan view that protrudes forward (lower left in FIG. 1, upper left in FIG. 2 or left in FIG. 3), and sandwiches a narrow bridge portion extending in the left-right direction. A substantially fan-shaped plane portion with the outer peripheral surface facing left front or right front is provided. The footrest plate 12 is pivotally attached near the right rear or left rear upper surface of the plane portion. The arcuate outer peripheral surface of the flat portion is concentric with the pivot shaft 15 of the footrest plate 12. The base 1 in this example is chamfered between the upper surface and the outer peripheral surface that are continuous with the bridging portion and the flat surface portion. Further, the base 1 of this example is provided with three grounding blocks 112 on the bottom surface of the plane portion. The grounding block 112 stably supports each plane portion by three-point support, and the bottom surface of the pivot shaft 15 exposed on the bottom surface of the base 11 does not interfere with the floor surface 3 (see FIG. 6). A gap is formed below.

  In the base 1 of this example, a stopper pin 111, which is a short wooden round bar, is provided in a bilaterally symmetrical position near the boundary between the bridge portion and the flat portion. The stopper pin 111 abuts on the inner side surface of the footrest plate 12 (the peripheral surfaces facing the left and right footrest plates 12 in FIG. 2) and faces inwardly of the footrest plate 12 (left and right feet in FIG. 2). The turning in the direction in which the mounting plates 12 approach each other is restricted. The stopper pin 111 is not limited in shape and size, and may be in contact with the inner surface of the footrest plate 12 so as to be able to regulate the turning of the footrest plate 12.

  If no load is applied to the footrest plate 12 that turns inward, the internal leg movement of the effective leg 21 (see FIG. 5 below, the same applies hereinafter) will not be achieved, so the inward turning of the footrest plate 12 is restricted. It does not have to be. However, if the footrest plate 12 can freely turn both inside and outside, it means that the footrest plate 12 is unstable when the foot 22 (see FIG. 8 described later) is placed. Thus, the exercise device 1 of the present example regulates the inward turning of the footrest plate 12 and urges the left and right footrest plates 12 inward by the elastic belts 16 spanning the left and right hooking projections 122, respectively. While the inner side is in contact with the stopper pin 111, the left and right footrest plates 12 are fixed in position when the foot 21 is placed.

  The footrest board 12 is a wooden board shaped like a footprint, and the toes formed on the front end are used as side-by-side latching protrusions 122. By providing the latching protrusion 122 at the front end of the footrest plate 12, the elastic belt 16 spanning the latching protrusion 122 can be moved away from the pivot shaft 15, and even with the elastic belt 16 having a weak elastic force, external rotation motion is possible. At this time, a necessary and sufficient load can be applied to the legs 21. The eaves receiver 13 is a wooden wall having an arc shape in plan view provided to follow an arcuate contour corresponding to the eaves formed at the rear end. In the heel support 13 of this example, a buffer pad 131 is attached to the inner peripheral surface that contacts the heel 221 of the foot 22. As the buffer pad 131, various conventionally known sheets that are elastically deformed or plastically deformed can be used. The buffer pad 131 may be attached or detached as appropriate. The heel support 13 engages the heel 221 closely attached to the buffer pad 131 with the right and left edges from the turning direction of the footrest plate 12. As a result, the positional displacement between the footrest plate 12 and the foot 22 that rotates is prevented.

  The holding pin 14 is provided so that its front and rear positions can be adjusted within the range of the holding pin long hole 121 extending rearward from the intermediate position of the latching protrusion 122 corresponding to the thumb and forefinger of the footrest plate 12. The holding pin 14 of this example is a footrest plate 12 in which a buffer belt 141 is wound in three upper and lower stages on a circumferential surface of a wooden body having a bowl shape (a shape in which anti-arcs at both ends are connected by parallel straight lines) in plan view. The fixing wing screw 142 is fastened to a bolt that penetrates the main body through the holding pin long hole 121 from the lower surface thereof. The main body may be made of resin or metal instead of wooden. As the buffer belt 141, various conventionally known belts that are elastically deformed or plastically deformed can be used. The buffer belt 141 may be of a size that uniformly covers the entire peripheral surface of the main body, or may be wound spirally or in multiple stages.

  When the fixing pin 142 is loosened, the holding pin 14 is loosened by tightening the footrest plate 12 by the head of the bolt that engages the lower surface of the footrest plate 12 and the lower surface of the main body. In addition to being able to adjust the front and rear position along 121, the orientation of the main body in a plan view can be changed. Thereby, when the user 2 places the foot 22 on the footrest plate 12, the holding pin 13 is held between the thumb 223 and the index finger 224 with the heel 221 in close contact with the buffer pad 141 of the heel support 13. The front / rear position and the orientation of the main body can be adjusted. After the adjustment of the front / rear position and the orientation of the main body in this way, the holding pin 14 is tightened with the fixing thumbscrew 142 so that the head of the bolt engaged with the lower surface of the footrest plate 12 and the lower surface of the main body 12 again. To fix the front-rear position and the orientation of the main body.

  In the footrest plate 12, a pivot shaft 15 is set just below the heel 221 of the foot 22 engaged with the heel support 13. The saddle receiver 13 of this example has an arc-shaped peripheral surface centering on the turning shaft 15. The swivel shaft 15 in this example is a flat head screw that protrudes from the bottom surface of the base 11 through the footrest plate 12 and the base 11 with the head engaged with the upper surface of the footrest plate 12, and protrudes from the bottom surface of the base 11. Tighten the nut to the tip. The footrest plate 12 of the present example has a rotating spacer 124 on the lower surface, and a range in which the spacer 124 is fitted in a recess formed on the surface of the base 11 and is in sliding contact with the base 11 is limited to the spacer 124. Further, the footrest plate 12 of this example stabilizes its turn by turning the spacer 124 according to the recess. The spacer 124 of this example is a wooden flat disk. The pivot shaft 15 passes through the center of the spacer 124.

  In addition, the footrest plate 12 of this example protrudes obliquely from the vicinity of the boundary between the instep fixing belt 123 that crosses right and left near the rear end of the holding pin long hole 121 and both ends of the heel support 13. And an ankle fixing belt 132 that traverses from side to side. The upper fixing belt 123 and the ankle fixing belt 132 are composed of right and left split belts made of cloth or resin having flexibility. The proximal end of the split belt constituting the upper fixing belt 123 is pinned to the peripheral surface of the footrest plate 12. Further, the base end of the split belt constituting the ankle fixing belt 132 is pinned across the peripheral surface of the footrest plate 12 and the peripheral surface of the heel support.

  The upper fixing belt 123 and the ankle fixing belt 132 are provided with a female surface of the hook-and-loop fastener on the outer surface of the inner divided belt and a male surface of the hook-and-loop fastener on the inner surface of the outer divided belt. For the upper fixing belt 123 and the ankle fixing belt 132, the inner divided belt is first addressed to the foot 22 placed on the footrest plate 12, and then the outer divided belt is overlapped with the inner divided belt. The male surface and female surface of the hook-and-loop fastener are engaged. Accordingly, the instep fixing belt 123 and the ankle fixing belt 132 are in close contact with the instep and the ankle to restrain the foot 22 and can fix the position so that the foot 22 does not rise from the footrest plate 12.

  The urging means in the exercise device 1 of the present example is an elastic belt 16 that spans over the latching protrusions 122 provided on the left and right footrest plates 12. The elastic belt 16 of this example is a single flat rubber belt. The elastic belt 16 only needs to be able to generate a restoring force by extension, and may be configured such that a plurality of rubber belts are bundled, a plurality of rubber belts are connected, or a retaining ring is provided at both ends of the rubber cord. The stretchable belt 16 expands even when it is stretched over the thumb-like latching protrusion 122 having the closest distance, and applies an urging force to bring the latching protrusion 122 closer to each other (see FIG. 5). reference).

  The exercise apparatus 1 of this example (FIGS. 1 to 3) is a single structural unit having a pair of left and right footrest plates 12 with respect to a base 11, and the distance between the left and right footrest plates 12 cannot be adjusted. On the other hand, for example, as shown in FIG. 4, the exercise apparatus 1 of another example 1 having two substantially symmetrical units each having one footrest plate 12 for each of the left and right independent bases 17 is a structural unit. You can also. The exercise apparatus 1 of another example 1 divides the plane portion of the base 11 in the exercise apparatus 1 of this example into left and right, and constitutes a left and right independent base 17 provided with a pair of meshing protrusions 173 on the inner sides facing each other. The meshing protrusions 173 make the left and right bases 17 approach and separate without rattling by sliding the side surfaces so as to mesh with each other. Further, the meshing of the meshing protrusions 173 also has a function of maintaining the posture of the base 17 that is pulled by the elastic belt 16 and tends to tilt.

  Each of the meshing protrusions 173 is provided with an inter-base adjustment long hole 174 extending in the left-right direction. The meshing projection 173 is addressed to a lower receiving plate 175 which is a substantially rectangular wooden plate in plan view from below. The meshing protrusion 173 and the lower receiving plate 175 are restrained by tightening a tightening butterfly screw 176 to a bolt that penetrates the inter-base adjusting long hole 174. The left and right bases 17 loosen the fastening thumbscrews 176 to release the engagement between the meshing protrusions 173 and the lower receiving plate 175, and pass through the base adjustment long holes 174 while sliding the side surfaces of the mutual meshing protrusions 173. The positional relationship in the left-right direction is adjusted by shifting the position of the bolt to be operated. Since each footrest plate 12 is provided on each of the left and right bases 17, the adjustment of the positional relationship of the base 17 in the left-right direction is the adjustment of the distance between the left and right footrest plates 12. The left and right bases 17 hold the adjusted spacing by tightening the fastening thumbscrews 176 and restraining the meshing protrusions 173 and the lower receiving plate 175.

  When adjusting the positional relationship between the left and right footrest plates 12 in the left-right direction, for example, as shown in FIG. 5, the pivot shafts 15 of the respective footrest plates 12 are positioned along the swivel shaft elongated holes 151 extending in the left-right direction. It can also be set as the exercise device 1 of the other example 2 made adjustable. The exercise device 1 of the second example is provided with a plurality of pin fixing holes 113 arranged in the left-right direction so that the position of the stopper pin 111 can be adjusted in accordance with the rotation of the pivot shaft 15 in the left-right direction. Is inserted into the selected pin fixing hole 113. In order to fix the position of the pivot 15 after adjustment, it is necessary to tighten the footrest plate 12 and the base 11 together. From this point, in order to make the footrest plate 12 turn freely, for example, the footrest plate 12 is attached to a collar externally fitted to the turning shaft 15 so that the effect of tightening the turning shaft 15 does not affect the footrest plate 12.

  As shown in FIG. 6, for example, the exercise device 1 of the present example has the user 2 in a state where the base 11 is placed on the floor surface 3 with the turning surface of the footrest plate 12 parallel to the floor surface 3. In the standing posture, the left and right feet 22 are put on each footrest plate 12 and used. The base 11 grounds the installation blocks 112 arranged on the left and right three to the floor surface 3 to maintain a stable horizontal posture. The turning axis S extending right above the turning shaft 15 substantially coincides with the hip joint when the heel 221 of the foot 22 is brought into close contact with the buffer pad 131 of the heel receiving 13. Accordingly, when the foot 22 is turned outward in accordance with the horizontal turning of the footrest plate 12 (the left foot 22 shown in FIG. 6 is directed toward the front side of the drawing), the external rotation of the leg 21 is realized. .

  Further, in the exercise device 1 of the present example, since the foot 22 can be integrated with the footrest plate 12 by the instep fixing belt 123 and the ankle fixing belt 132, as shown in FIG. The swivel surface of the footrest plate 12 is perpendicular to the bed 4 and the base 11 can be used standing on the bed 4. At this time, the base 11 stabilizes the vertical posture by bringing the grounding block 112 in the immediate vicinity of the rear edge portion into contact with the bed 4 while the rear edge portions of the left and right planar portions are sunk into the bed 4. When the heel 221 of the foot 22 is brought into close contact with the buffer pad 131 of the heel support 13, the slewing axis S extending horizontally from the slewing shaft 15 substantially coincides with the hip joint. As a result, when the foot 22 is turned outward in accordance with the vertical turning of the footrest plate 12 (the left foot 22 shown in FIG. 7 is directed toward the front of the paper), the external rotation of the leg 21 is realized. . In this case, the user 2 can perform only the external rotation of the leg 21 in the supine posture, and the upper body is not burdened.

  A specific external rotation motion of the leg 21 by the exercise device 1 of this example will be described. Whether the user 2 uses the standing position (refer to FIG. 6) or the supine position (refer to FIG. 7), the exercise device 1 places the foot 22 on the footrest plate 12, the instep fixing belt 123 and the ankle The preparatory work for integrating the foot 22 with the footrest plate 12 with the fixed belt 132 for use is easier to carry out in a state where it is placed on the floor surface 3. The holding pin 14 is made free to move by loosening the fixing thumbscrew 142. The user 2 places the left and right feet 22 on the corresponding footrest plate 12, aligns the toes 222 toward the front end of the footrest plate 12, and closely contacts the heel 221 with the buffer pad 131. Engage with the saddle receiver 13 in the direction of turning. Then, the holding pin 14 is moved to a position where it can be easily pinched by the thumb 223 and the index finger 224, and the fixing thumbscrew 142 is tightened to fix the position. Since the holding pin 14 is sandwiched between the thumb 223 and the index finger 224, the exercise apparatus 1 is preferably used barefoot, but may wear socks or tabi with finger crotch.

  In this way, with the heel support 13 on the front and back of the foot 22 and the holding pin 14, the instep fixing belt 123 is brought into close contact with the instep, while preventing the positional displacement in the turning direction with respect to the footrest plate 12. The fixing belt 132 is closely attached to the ankle, and the footrest plate 12 and the foot 22 are integrated. The positional deviation in the turning direction with respect to the footrest plate 12 is prevented by the heel support 13 and the holding pin 14. For this reason, the instep fixing belt 123 and the ankle fixing belt 132 do not need to tighten the foot 22 to the footrest plate 12 and do not lift the foot 22 in the direction perpendicular to the surface of the footrest plate 12. Absent. Thus, when the left and right footrest plates 12 and the feet 22 are integrated, the stretchable belt 16 is finally bridged over the selected left and right hooking protrusions 122, and preparations are made as seen in FIGS. Complete. In the illustrated example, the stretchable belt 16 is stretched over the thumb-like latching projection 122 having the narrowest interval.

  At this time, if the elastic belt 16 has already been extended, the left and right footrests 12 are turned inward (the left footrest 12 is turned right and the right footrest 12 is turned left). The urging force to be applied (see white arrows in the vicinity of both ends of the elastic belt 16 in FIG. 8) is applied to each footrest plate 12. However, the left and right footrest plates 12 abut against the corresponding stopper pins 111, and the inner turning is restricted (see white broken line arrows near the stopper pins 111 in FIG. 8). If the stretchable belt 16 spanning the selected latching protrusion 122 is not extended, the footrest plate 12 will not turn inward even if the stopper pin 111 is not provided.

  As shown in FIG. 10, the user 2 turns outward about the heel 221 so that the toes 222 of the left and right feet 22 integrated with the footrest plate 12 are separated from each other (in FIG. 10). , Refer to the black arrows near the tips of the left and right footrest plates 12), and the legs 21 are rotated outwardly. The left and right feet 22 are basically pivoted outwards at the same time and at the same time. As a result, the stretched elastic belt 16 generates a large restoring force and biases the left and right footrests 12 to turn inward (see white arrows in the vicinity of both ends of the elastic belt 16 in FIG. 10). Is applied to each footrest plate 12. The user 2 can perform the external rotation of the leg 21 under load by attempting to turn the footrest plate 12 outwardly against the urging force.

  The urging force applied by the extended telescopic belt 16 increases or decreases in accordance with the interval between the hanging protrusions 122 to be bridged. The exercise device 1 of the present invention can turn the footrest plate 12 largely around the heel 221 of the foot 22. In the case of this example, the elastic belt 16 is stretched over the hooking protrusion 122 provided at the front end of the footrest plate 12. Therefore, the urging force applied by the elastic belt 16 can be greatly increased or decreased according to the turning amount of the footrest plate 12. This means that the adjustment range of the urging force is large. The urging force applied by the stretched elastic belt 16 is applied to the footrest plate 12, and is applied to the leg 21 via the foot 22 integrated with the footrest plate 12. Hip external rotator muscle group). From now on, if the user 2 performs the external rotation of the leg 21 within a range in which the foot 22 can turn outward against the urging force given by the elastic belt 16, the user 2 determines the appropriate load by himself, The hip external rotator muscles can be trained without difficulty.

  The left and right feet 22 do not necessarily have to be pivoted outward at the same time and at the same time. For example, as seen in FIG. 11, only the left foot 22 may be turned outward and only the left leg 21 may be rotated outwardly. In this case, even if the left and right feet 22 are turned in equal amounts and simultaneously, and the left foot 22 is turned only (see FIG. 10), the stretchable belt 16 is extended. Therefore, the load applied to the left leg 21 during external rotation (see the black arrow near the tip of the footrest plate 12 in FIG. 11) is reduced. If the right foot 22 is not turned, it remains in contact with the inner surface of the footrest plate 12, so that the stopper pin 111 opposes the urging force applied to the telescopic belt 16 (in FIG. For this reason, no load is applied to the right leg 21 (see the white broken arrow in the vicinity of the stopper pin 111).

  Since the left and right latching protrusions 122 that span the stretchable belt 16 can be selected, for example, as shown in FIG. 12, when the stretchable belt 16 is spanned across the spaced apart middle finger-like latching protrusions 122, the foot 22 Even if the amount of rotation is the same, a larger urging force (see white arrows near the ends of the elastic belt 16 in FIG. 12) can be applied, and a larger load (see black arrows near the tip of the footrest plate 12 in FIG. 12) ) To the leg 21 (especially the hip external rotator muscle group). As described above, the exercise device 1 of the present invention not only increases or decreases the amount of rotation of the foot 22 from side to side, but also selects the latch protrusion 122 that bridges the elastic belt 16 that is a biasing means. Since the applied load can be adjusted, the external rotation movement of the leg 21 according to the user 2 can be realized very flexibly, and the hip external rotation muscle group can be trained reliably without difficulty.

1 Exercise equipment
11 base
111 Stopper pin
12 Foot plate
121 Long hole for holding pin
122 Suspension protrusion
123 Instep fixation belt
13 Samurai
131 Buffer pad
132 Ankle fixation belt
14 Holding pin
142 Thumbscrews for fixing
15 Rotating axis
151 Long hole for swivel shaft
16 Telescopic belt 2 User
21 legs
22 feet
221 踵
222 toes
223 thumb
224 Index finger 3 Floor 4 Bed S Swivel axis

Claims (5)

The base is provided with a pivotable footrest plate,
The footrest plate has a heel support for hooking a heel of the foot in the turning direction, and a holding pin sandwiched between the toes of the heel support for hooking the heel.
A pivot axis is set just below the heel of the foot engaged with the heel support,
An urging means for providing an urging force inward when at least the leg is rotated outwardly is provided ,
By pivoting against the foot rest plate around the foot heel to the biasing force, the exercise apparatus characterized in that train the hip outside rotators group by a load applied to the legs of lateral rotation movement. The exercise device according to claim 1, wherein the footrest plate is freely movable toward and away from the support pin toward the heel support. The exercise device according to claim 1, wherein the footrest plate is provided with a fixing belt that hangs around the foot. The exercise device according to any one of claims 1 to 3, wherein the footrest plate has a pair of left and right, and stretches an elastic belt between latching protrusions provided on the left and right, respectively, and uses the elastic belt as a biasing means. The exercise device according to claim 4, wherein the footrest plate has a plurality of latching protrusions on one or both of the left and right sides, and an elastic belt is stretched over the selected left and right latching protrusions.

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