Yawing gait training sole-mounted device and yawing gait training method

Abstract

To provide a sole attachment tool for "scissors walking" training, which allows the scissors walking training to be promoted.SOLUTION: A sole attachment tool for scissors walking training comprises a sole fabric part and a projection part. The sole fabric part covers at least the sole. The projection part is disposed on areas of the sole fabric part at least corresponding to (a) the region corresponding to at least one of the heel 50 and the vicinity thereof, (b) the region corresponding to at least one of the metatarsus part 40 and the vicinity thereof, (c) the region corresponding to at least one of the hypothenar eminence 30 and the vicinity thereof, (d) the region corresponding to at least one of the thenar eminence 20 and the vicinity thereof, and (e) the region corresponding to at least one of the hallux 10 and the vicinity thereof.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a plantar foot-wearing device for eel-like walking training. The present invention also relates to a method of eel-like walking training performed by wearing the plantar foot-wearing device.

Background Art

[0002] In the past, a "sole-mounted device in which a stimulating portion is provided along a preferable center-of-pressure trajectory of the foot, and the stimulating portion is arranged at a position corresponding to a curve that surrounds the outside of the cuboid bone or the outside thereof, passes around the outside of the instep, passes through the first metatarsal bone, and extends to the first phalanx bone" has been proposed (see, for example, Japanese Patent Application Laid-Open No. 2019-210580). By stimulating the wearer's sole during walking or running, this sole-mounted device can guide the wearer along a preferable center-of-pressure trajectory of the foot. In recent years, various aids for eliciting such ideal walking movements have begun to be studied.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, recently, "eel-like walking" has attracted attention as one of the ideal walking movements of humans. "Eel-like walking" is a walking movement in which the toes are raised, the foot lands from slightly outside the center of the heel, the body weight is shifted to the outside of the sole in the direction of the base of the little finger, and the ground is grasped with the thumb, index finger, and middle finger while kicking backward. And health promotion can be achieved by this "eel-like walking".

[0005] An object of the present invention is to provide a plantar foot-wearing device for walking training that can promote the acquisition of the above-described "eel-like walking".

Means for Solving the Problems

[0006] The wavy walking training sole-mounted device according to the first aspect of the present invention includes a sole fabric part and protrusions. The sole fabric part covers at least the sole. The protrusions are provided at least at five sites shown in the following (a) to (e) of the sole fabric part. (a) A site corresponding to at least one of the heel and its vicinity (b) A site corresponding to at least one of the midfoot and its vicinity (c) A site corresponding to at least one of the metatarsal head of the little toe and its vicinity (d) A site corresponding to at least one of the metatarsal head of the big toe and its vicinity (e) A site corresponding to at least one of the big toe and its vicinity

[0007] Therefore, when walking, the wearer of this walking training sole-mounted device steps on the protrusions provided at the sites corresponding to at least one of the heel and its vicinity, the protrusions provided at the sites corresponding to at least one of the midfoot and its vicinity, the protrusions provided at the sites corresponding to at least one of the metatarsal head of the little toe and its vicinity, the protrusions provided at the sites corresponding to at least one of the metatarsal head of the big toe and its vicinity, and the protrusions provided at the sites corresponding to at least one of the big toe and its vicinity in that order, thereby enabling the training of wavy walking. For this reason, this walking training sole-mounted device can promote the acquisition of "wavy walking" by the wearer.

[0008] The wavy walking training sole-mounted device according to the second aspect of the present invention is the wavy walking training sole-mounted device according to the first aspect, wherein the protrusions are not provided at sites other than the sole pressure center locus during wavy walking and its vicinity.

[0009] Therefore, the wearer of this walking training sole-mounted device is likely to concentrate their consciousness on the sole pressure center locus and its vicinity.

[0010] The rocking gait training foot sole wearable according to the third aspect of the present invention is the rocking gait training foot sole wearable according to the first aspect or the second aspect, wherein the protrusion provided at a site corresponding to at least one of the midfoot and its vicinity gives a stronger stimulus than the protrusions provided at sites corresponding to at least one of (a) the heel and its vicinity, (c) the metatarsal head of the little toe and its vicinity, (d) the metatarsal head of the big toe and its vicinity, and (e) the big toe and its vicinity.

[0011] Therefore, the wearer of this rocking gait training foot sole wearable can easily shift their body weight to the outside of the foot, and thus can easily acquire the "rocking gait".

[0012] In the training method for rocking gait according to the fourth aspect of the present invention, while wearing a foot sole wearable having at least a foot sole fabric part covering the foot sole and protrusions provided at sites corresponding to at least one of (a) the heel and its vicinity, (b) the midfoot and its vicinity, (c) the metatarsal head of the little toe and its vicinity, (d) the metatarsal head of the big toe and its vicinity, and (e) the big toe and its vicinity, walk while stepping on the protrusions provided at sites corresponding to at least one of (a) the heel and its vicinity, (b) the midfoot and its vicinity, the protrusions provided at sites corresponding to at least one of the metatarsal head of the little toe and its vicinity, the protrusions provided at sites corresponding to at least one of the metatarsal head of the big toe and its vicinity, and the protrusions provided at sites corresponding to at least one of the big toe and its vicinity in that order.

[0013] Therefore, the wearer of this rocking gait training foot sole wearable can easily acquire the "rocking gait".

Brief Description of the Drawings

[0014]

Figure 1

Figure 2

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Figure 5

Figure 6

[0015] The anti-sway gait training sole-attached device according to an embodiment of the present invention is a sole-attached device having at least a sole fabric part that covers at least the sole of the foot, and is, for example, various leg wears (footwear), that is, socks, foot wraps, stockings, tights, shoes, insoles, soft appliances, hard appliances, etc. And, on the sole fabric part of this anti-sway gait training sole-attached device, a protrusion for promoting the acquisition of anti-sway gait is provided. The following will detail this protrusion.

[0016] As shown in FIG. 1, the protrusion is provided at least at five sites shown in the following (a) to (e) of the sole fabric part. (a) A site corresponding to at least one of the heel 50 and its vicinity (b) A site corresponding to at least one of the midfoot part 40 and its vicinity (c) A part corresponding to at least one of the ball of the little toe 30 and its adjacent part (d) A part corresponding to at least one of the ball of the big toe 20 and its adjacent part (e) A part corresponding to at least one of the big toe 10 and its adjacent part In addition, these protrusions are preferably provided at a part corresponding to (a1) the heel 50 of the sole fabric part, (b1) the outer part of the midfoot 40, (c1) the ball of the little toe 30, (d1) the ball of the big toe 20, and (e1) the big toe 10.

[0017] Also, these protrusions are preferably provided in the distribution area of the sensory receptors (mechanoreceptors) on the sole. The distribution area of the sensory receptors (mechanoreceptors) on the sole is as shown in FIG. 1. In particular, when these protrusions are provided at a part corresponding to (a2) the adjacent part of the heel 50 of the sole fabric part, (b2) the adjacent part of the midfoot 40, (c2) the adjacent part of the ball of the little toe 30, (d2) the adjacent part of the ball of the big toe 20, and (e2) the adjacent part of the big toe 10, it is desirable to provide the protrusions in the distribution area of the sensory receptors (mechanoreceptors) on the sole.

[0018] Also, in terms of the relationship with the foot bones, as shown in Fig. 2, the protrusions are provided at a site corresponding to at least one of (a') the calcaneus 50a of the plantar fabric part and the bone site in its vicinity, (b') the midfoot bone 40a or the cuboid bone and the bone site in its vicinity, (c') the fifth metatarsophalangeal joint head 30a and the bone site in its vicinity, (d') the sesamoid bone 20a and the bone site in its vicinity, and (e') the first phalanx 10a and the bone site in its vicinity. In such a case, these protrusions are preferably provided at a site corresponding to (a'1) the site corresponding to the calcaneus 50a of the plantar fabric part, (b'1) the site corresponding to the midfoot bone 40a or the cuboid bone, (c'1) the site corresponding to the fifth metatarsophalangeal joint head 30a, (d'1) the site corresponding to the sesamoid bone 20a, and (e'1) the site corresponding to the first phalanx 10a. Also, even in such a case, these protrusions are preferably provided in the distribution region of the sensory receptors (mechanoreceptors) on the sole. In particular, when these protrusions are provided at a site corresponding to (a'2) the bone site near the calcaneus 50a of the plantar fabric part, (b'2) the bone site near the midfoot bone 40a or the cuboid bone, (c'2) the bone site near the fifth metatarsophalangeal joint head 30a, (d'2) the bone site near the sesamoid bone 20a, and (e'2) the bone site near the first phalanx 10a, it is desirable to provide the protrusions in the distribution region of the sensory receptors (mechanoreceptors) on the sole.

[0019] Note that protrusions may be provided at sites other than the above-mentioned sites, but it is preferable not to provide protrusions at sites other than the center of pressure trajectory (COP) of the sole during walking and the sites in its vicinity. Also, the protrusions may be provided on either the inner or outer side of the plantar fabric part, but when provided on the outer side of the plantar fabric part, it is preferable that they are thicker than the thickness of the fabric of the plantar fabric part. This is because even if the fabric of the plantar fabric part is relatively soft, the wearer can easily feel the protrusions.

[0020] Further, the protrusion may be provided on the inner surface of the sole fabric portion, may be provided on the outer surface, or may be embedded in the sole fabric portion. When the protrusion is provided on the inner surface of the sole fabric portion, the wearer can easily feel the protrusion as the protrusion directly touches the foot. When the protrusion is provided on the outer surface of the sole fabric portion, the thickness of the protrusion is preferably greater than the thickness of the sole fabric portion. For example, even if the sole fabric portion is a relatively thick and soft fabric such as a pile fabric, the protrusion is less likely to be buried in the sole fabric portion, making it easier for the wearer to feel the protrusion.

[0021] Examples of the shape of the protrusion include a disc shape, a polygonal plate shape (e.g., a triangular plate shape, a square plate shape, a hexagonal plate shape), a partial spherical shape, a conical shape, and a polygonal pyramid shape, but are not limited thereto. As a result of the verification shown below, the shape of the protrusion is preferably a quadrilateral.

[0022] The thickness of the protrusion may be the same as the thickness of the sole fabric portion, may be thinner than the thickness of the sole fabric portion, or may be thicker than the thickness of the sole fabric portion. Even if the sole fabric portion is thick, as long as the protrusion has an appropriate hardness that does not allow it to be buried in the sole fabric portion, the wearer can feel the protrusion even if the protrusion is thinner than the thickness of the sole fabric portion. Also, from the results of the sensory test, the thickness of the protrusion is preferably in the range of 2 mm or more and 3 mm or less, and the area of the protrusion in plan view is 25 mm 2 or more and 225 mm 2 or less.

[0023] In addition, examples of the material for forming the protrusions include elastic resins such as rubber and elastomer, general thermoplastic resins, and thermosetting resins, but are not limited thereto. When the sole fabric part is a knitted fabric, the protrusions may be formed by knitting. When forming the protrusions by knitting, the part other than the protrusions may be knitted with a relatively thin knitting structure such as plain knitting or mesh knitting, and the protrusions may be knitted with a relatively thick stitch such as tack knitting, pile knitting, or pseudo-pile knitting (a loop-shaped three-dimensional knitting method). Alternatively, the protrusions may be formed by cut bosses with additional yarn partially added to make the knitting thicker than other areas. Further, by using thermoplastic resin fiber yarn for the additional yarn, heating and melting it, and then cooling and solidifying it, the stitches of the protrusions may be made harder than those of other areas. Or, the protrusions may be formed by a spacer fabric such as interlock knitting.

[0024] Also, when the protrusions are formed of rubber, elastomer, or resin, it is preferable that the protrusions exhibit a hardness within the range of A5 or more and A60 or less in terms of the durometer type A (shore A) hardness defined in JIS K6253. As a result of the verification shown below, it is more preferable that the same hardness exhibits a hardness within the range of A20 or more and A60 or less, and even more preferable that it exhibits a hardness within the range of A30 or more and A50 or less.

[0025] In addition, the protrusions are preferably provided at a distance greater than or equal to the sensory thresholds of the heel 50, the outer part of the midfoot 40, the ball of the little toe 30, the ball of the big toe 20, and the big toe 10. The sensory threshold is the minimum distance at which two points can be distinguished when an object touches two points on the sole of the foot simultaneously. This is to make it easier for the wearer of the foot-mounted device for walking training according to the embodiment of the present invention to perceive each of the protrusions provided at the above-mentioned respective parts. By the way, the sensory threshold varies depending on factors such as individual differences and age, and has a certain range. For example, in young people with an average age of 23.0 ± 2.1 years, the sensory threshold of the big toe 10 is 7.7 ± 2.1 mm, the sensory threshold of the ball of the big toe 20 is 11.1 mm ± 2.8 mm, the sensory threshold of the ball of the little toe 30 is 11.5 mm ± 2.5 mm, the sensory threshold of the outer part of the midfoot 40 is 9.9 ± 1.8 mm, and the sensory threshold of the heel 50 is 12.3 mm ± 3.0 mm. That is, the maximum value of the sensory threshold of the big toe 10 is 9.8 mm, the sensory threshold of the ball of the big toe 20 is 13.9 mm, the sensory threshold of the ball of the little toe 30 is 14.0 mm, the sensory threshold of the outer part of the midfoot 40 is 11.7 mm, and the sensory threshold of the heel 50 is 15.3 mm.Here, when the protrusion provided at a site corresponding to at least one of (a) the heel 50 and its vicinity is defined as the "a protrusion", the protrusion provided at a site corresponding to at least one of (b) the midfoot 40 and its vicinity is defined as the "b protrusion", the protrusion provided at a site corresponding to at least one of (c) the ball of the little toe 30 and its vicinity is defined as the "c protrusion", the protrusion provided at a site corresponding to at least one of (d) the ball of the big toe 20 and its vicinity is defined as the "d protrusion", and the protrusion provided at a site corresponding to at least one of (e) the big toe 10 and its vicinity is defined as the "e protrusion", in order to achieve the above object, in the insole for walking training for the elderly, it is necessary that there is no protrusion other than the e protrusion within the maximum perception range of the big toe 10, that is, within a radius of 9.8 mm, it is necessary that there is no protrusion other than the d protrusion within the maximum perception range of the ball of the big toe 20 with a radius of 13.9 mm, it is necessary that there is no protrusion other than the c protrusion within the maximum perception range of the ball of the little toe 30 with a radius of 14.0 mm, it is necessary that there is no protrusion other than the b protrusion within the maximum perception range of the outer part of the midfoot 40 with a radius of 11.7 mm, and it is necessary that there is no protrusion other than the a protrusion within the maximum perception range of the heel 50 with a radius of 15.3 mm.

[0026] In addition, in elderly people with an average age of 76.3 ± 5.5 years, the sensory threshold of the great toe 10 is 17.1 ± 7.3 mm, the sensory threshold of the ball of the great toe 20 is 17.2 mm ± 7.9 mm, the sensory threshold of the ball of the little toe 30 is 20.7 mm ± 8.9 mm, and the sensory threshold of the heel 50 is 22.6 mm ± 10.4 mm (note that the sensory threshold of the outer part of the midfoot 40 in the above-mentioned elderly people is unknown, but it is expected to be larger than the sensory threshold of the outer part of the midfoot 40 in the above-mentioned young people). That is, the maximum value of the sensory threshold of the great toe 10 is 24.4 mm, the sensory threshold of the ball of the great toe 20 is 25.1 mm, the sensory threshold of the ball of the little toe 30 is 29.6 mm, and the sensory threshold of the heel 50 is 33.0 mm. In such a case, in order to achieve the above object, in the sole-mounted walking training device for the elderly, it is necessary that there are no protrusions other than the e-protrusion within the maximum sensory range of the great toe 10, that is, within a radius of 24.4 mm, and there are no protrusions other than the d-protrusion within a radius of 25.1 mm of the maximum sensory range of the ball of the great toe 20, and there are no protrusions other than the c-protrusion within a radius of 29.6 mm of the maximum sensory range of the ball of the little toe 30, and there are no protrusions other than the a-protrusion within a radius of 33.0 mm of the maximum sensory range of the heel 50.

[0027] In addition, in infants aged 55 to 76 months after birth, the sensory threshold in the longitudinal axis direction of the ball of the great toe 20 is 10.0 ± 2.1 mm for boys and 9.7 ± 1.7 mm for girls, and the sensory threshold in the longitudinal axis direction of the heel 50 is 10.8 ± 1.7 mm for boys and 10.2 ± 2.0 mm for girls (note that the sensory thresholds of the great toe 10, the ball of the little toe 30, and the outer part of the midfoot 40 in the above-mentioned infants are unknown, but they are expected to be smaller than the sensory thresholds of the great toe 10, the ball of the little toe 30, and the outer part of the midfoot 40 in the above-mentioned young people). That is, the maximum value of the sensory threshold of the ball of the great toe 20 is 12.1 mm, and the maximum value of the sensory threshold of the heel 50 is 12.6 mm. In such a case, in order to achieve the above object, in the sole-mounted walking training device for the above-mentioned infants, it is necessary that there are no protrusions other than the c-protrusion within a radius of 12.1 mm of the maximum sensory range of the ball of the great toe 20, and there are no protrusions other than the a-protrusion within a radius of 12.6 mm of the maximum sensory range of the heel 50.

[0028] Incidentally, since sway walking can be efficiently acquired, the protrusions provided at the site corresponding to at least one of the midfoot 40 and its vicinity are preferably stronger stimuli than the protrusions provided at the site corresponding to at least one of the heel 50 and its vicinity in (a), the site corresponding to at least one of the metatarsal head of the little toe 30 and its vicinity in (c), the site corresponding to at least one of the metatarsal head of the big toe 20 and its vicinity in (d), and the site corresponding to at least one of the big toe 10 and its vicinity in (e). As a specific method for realizing this, for example, only the protrusions provided at the site corresponding to at least one of the midfoot 40 and its vicinity are made different from the other protrusions corresponding to the other foot parts 10, 20, 30, 50 in at least one of shape, thickness, area, material, and hardness, but the method is not limited to this.

[0029] <Walking training method using a sole-mounted device for walking training> After wearing the sole-mounted device for walking training, the trainer walks while stepping on the protrusions provided at the site corresponding to at least one of the heel 50 and its vicinity in (a), the protrusions provided at the site corresponding to at least one of the midfoot 40 and its vicinity in (b), the protrusions provided at the site corresponding to at least one of the metatarsal head of the little toe 30 and its vicinity in (c), the protrusions provided at the site corresponding to at least one of the metatarsal head of the big toe 20 and its vicinity in (d), and the protrusions provided at the site corresponding to at least one of the big toe 10 or its vicinity in (e) in that order. By repeating this walking motion, sway walking can be acquired.

[0030] In sway walking, first, the foot is lifted while raising the toes, and then it lands from slightly outside the heel. Next, the body weight is shifted from the outside of the sole to the base of the little toe. Then, the body weight is shifted from the metatarsal head of the little toe to the metatarsal head of the big toe. Subsequently, the body weight is shifted from the metatarsal head of the big toe to the index finger, and the foot is kicked straight back.

[0031] <Verification example> Hereinafter, verification examples will be shown to explain the present invention in more detail. Note that the present invention is not limited by the verification examples shown below.

[0032] (1) Verification of the shape of the protrusion Cylindrical, triangular prism-shaped, square prism-shaped, and hexagonal prism-shaped molds were prepared. With the same-shaped molds applied to the corresponding parts of the heels on the back sides, the outer parts of the mid-feet, the metatarsal heads, the ball of the big toe, and the big toe of each of a plurality of identical socks, silicone rubber before curing was poured into these molds, and then the silicone rubber was cured to form protrusions with a thickness of 2 to 3 mm on each part of the sock. The diameter of the cylindrical mold was 10 mm. Also, the triangular prism-shaped, square plate-shaped, and hexagonal plate-shaped molds were sized to fit within a 10 mm square in plan view.

[0033] Each of the socks with protrusions produced as described above was worn by four testers, and the testers were asked whether they could identify each protrusion and which one had the best feel. The following results were obtained.

[0034] · When blindly inspected, the shape of the protrusion could not be discriminated (opinions of all 4 testers). · The feel did not change for protrusions of any shape (opinions of all 4 testers). · When wearing the sock with protrusions in the shape of a square plate, the protrusion was most easily perceived (opinions of all 4 testers). · The protrusions were perceived in the order of square plate shape, disc shape, hexagonal plate shape, and triangular plate shape (opinions of all 4 testers).

[0035] (2) Verification of the hardness of the protrusion Silicone sheets with a thickness of 3 mm and different hardnesses of durometer type A (share A) manufactured by Kyowa Industry Co., Ltd. (JIS K6253) were cut into circular shapes with a diameter of 10 mm to form protrusions with various hardnesses. After that, the protrusions with the same hardness were pasted onto the heels, outer parts of the midfoot, metatarsal heads of the little toes, metatarsal heads of the big toes, and the parts corresponding to the big toes on the back sides of a plurality of identical socks. The hardnesses of the silicone sheets used in this verification were A5, A10, A20, A30, A40, A50, A60, and A70. Then, three clinical trial participants were asked to wear those socks and walk, and to give a sensory evaluation. The following results were obtained.

[0036] The protrusions provided at the parts corresponding to the big toes can be perceived if their hardness is within the range of A5 or more and A60 or less. The protrusions provided at the heels, outer parts of the midfoot, metatarsal heads of the little toes, and metatarsal heads of the big toes can be perceived if their hardness is within the range of A5 or more and A60 or less. When walking while wearing socks with protrusions of hardness A70, pain is felt. Also, when the hardness of the protrusions provided at the heels, outer parts of the midfoot, metatarsal heads of the little toes, metatarsal heads of the big toes, and the parts corresponding to the big toes is within the range of A30 or more and A50 or less, the protrusions can be sufficiently perceived and no pain is felt.

[0037] (3) Verification of gait correction As shown in Table 1 below, for three subjects A, B, and C who showed a linear COP movement trajectory and a return-type COP disappearance trajectory when wearing ordinary socks, when they walked while wearing the socks according to the present invention while being conscious of stepping on each protrusion, all the subjects showed a sway-type COP movement trajectory and a toe-reaching type COP disappearance trajectory. That is, it was proved that the socks according to the present invention are suitable for training the wearer to walk with a sway.

[0038]

Table 1

[0039] For reference, Fig. 3 shows the locus of the center of plantar pressure (COP) obtained from conventional socks, and Fig. 4 shows the locus of the center of plantar pressure (COP) obtained from the socks according to the present invention. Fig. 5 shows the length of the locus of the center of plantar pressure (COP) before and after comfortable walking obtained from conventional socks and the socks according to the present invention. As shown in Fig. 5, it was revealed that the socks according to the present invention significantly increased the length of the COP locus before and after compared with the conventional socks.

[0040] (4) Difference in effects depending on the presence or absence of a protrusion corresponding to the metatarsal head The subjects were asked to walk while wearing the invention product and the product obtained by removing the protrusion provided at the position corresponding to the metatarsal head from the invention product, while being conscious of stepping on each protrusion. At this time, comfortable walking for 10 seconds was defined, and the sampling frequency of COP was set to 120 Hz.

[0041] The pitching condition was judged at the position where the COP locus passed through the middle metatarsal bone head (see Fig. 6). Specifically, starting from the inner part of the sole of the foot, the distance from the starting point to the above position was measured and normalized by dividing the distance by the foot width of each subject (that is, pitching condition = the above distance / foot width × 100). Note that the larger the value of the pitching condition, the stronger the pitching motion, and it was judged that the COP locus passed through more outside. As a result, the invention product tended to show a higher value (see Table 2), indicating that the COP locus passed through more outside. Even when objectively judged from the distribution image, the invention product seemed to have a stronger pitching motion and the COP locus passed through outside.

[0042]

Table 2

Explanation of symbols

[0043] 10 big toe 10a first phalanx 20 ball of the big toe 20a sesamoid bone 30 metatarsal head 30a fifth metatarsal bone head 40 midfoot 40a middle foot bone 50 heel 50a calcaneus

Claims

1. A plantar fabric part that covers at least the sole of the foot, and projections independently provided respectively on at least (a) a part corresponding to at least one of the heel and its vicinity, (b) a part corresponding to at least one of the midfoot and its vicinity, (c) a part corresponding to at least one of the metatarsal head of the little toe and its vicinity, (d) a part corresponding to at least one of the metatarsal head of the big toe and its vicinity, and (e) a part corresponding to at least one of the big toe and its vicinity of the plantar fabric part A plantar-wearing device for swaying gait training, comprising:

2. The material forming the plantar fabric part and the projections is knitted fabric, The plantar-wearing device for swaying gait training according to Claim 1.

3. The material forming the projections is an elastic resin, The Shore A hardness of the projections as defined in JIS K6253 is in the range of A5 or more and A60 or less, The plantar-wearing device for swaying gait training according to Claim 1.

4. The thickness of the projections is in the range of 2 mm or more and 3 mm or less, The plantar-wearing device for swaying gait training according to any one of Claims 1 to 3.

5. The area of the projections in a plan view is in the range of 25 mm2 or more and 225 mm2 or less, The plantar-wearing device for swaying gait training according to any one of Claims 1 to 4.

6. The projections are not provided on parts other than the plantar pressure center locus during swaying gait and its vicinity parts The plantar-wearing device for swaying gait training according to any one of Claims 1 to 5.

7. (b) The projection provided on a part corresponding to at least one of the midfoot and its vicinity gives a stronger stimulus than the projections provided on (a) a part corresponding to at least one of the heel and its vicinity, (c) a part corresponding to at least one of the metatarsal head of the little toe and its vicinity, (d) a part corresponding to at least one of the metatarsal head of the big toe and its vicinity, and (e) a part corresponding to at least one of the big toe and its vicinity The plantar-wearing device for swaying gait training according to any one of Claims 1 to 6.

8. In a state of wearing a foot sole wearing device including a foot sole fabric part that covers at least the foot sole, and protrusions independently provided respectively at at least (a) a part corresponding to at least one of the heel and its vicinity, (b) a part corresponding to at least one of the midfoot and its vicinity, (c) a part corresponding to at least one of the ball of the little toe and its vicinity, (d) a part corresponding to at least one of the ball of the big toe and its vicinity, and (e) a part corresponding to at least one of the big toe and its vicinity, while stepping on the protrusions provided at (a) the part corresponding to at least one of the heel and its vicinity, (b) the part corresponding to at least one of the midfoot and its vicinity, (c) the part corresponding to at least one of the ball of the little toe and its vicinity, (d) the part corresponding to at least one of the ball of the big toe and its vicinity, and (e) the part corresponding to at least one of the big toe or its vicinity in that order, walk A training method for swaying gait.

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