JP6305960B2 - socks - Google Patents

Description

  The present invention relates to a sock, and more particularly to a sock that improves stability during standing and exercising.

  Conventionally, socks have been proposed to restore the normal function of the foot arch and foot.

  Patent Document 1 describes a ligament reinforced sock that aims to restore the normal function of the foot by restoring the arch of the foot while suppressing poor circulation. Elastic stretch part with stronger tensile resistance in the width direction of the foot than the other part on the part corresponding to the sole side of the lateral middle foot ligament and the part corresponding to the dorsal side of the tarsal bone of the sock body Is described.

  Patent Document 2 describes a sock intended to maintain a curved shape of a sole arch in a normal shape and promote a comfortable walking motion. A first region composed of a knitted tissue or material having a low stretchability and the highest pressure on the skin is provided at a position near the center in the foot length direction of the arch portion, and surrounds the first region, and the foot It is described that a second region composed of a low-stretch knitted structure or material is provided so as to surround the instep from the bottom. If the stretch in the foot circumferential direction of the first region is L1, the stretch in the foot circumferential direction of the second region is L2, and the stretch in the foot circumferential direction of other portions excluding the first region and the second region of the socks is L3, By satisfying the relationship of L1 <L2 <L3, the effect of maintaining the curve of the sole arch in a normal shape is exhibited.

  Non-Patent Documents 1 to 3 describe improvement in posture balance ability, risk of falling due to destabilization during balance exercise, movement chain of foot and subtalar joint, and the like.

JP 2005-312512 A JP 2008-1111224 A

"Basic elements for planning and implementing exercise therapy-especially on therapeutic learning", Eiichi Saito, Kosuke Shimizu, Enon Nagae, General Rehabilitation, 33 (7): 603-610, 2005 “Anxiety affects the postural sway of the antero-posterior axis in college students”, Wada M, Sunaga N, Nagai M, Neurosci Lett. 302 (2-3): 157-159, 2001 "Sport movement and stability: from the characteristics of sports movement related to the occurrence of trauma", Hirokazu Kobayashi, Koji Miyashita, Koji Todo, Kansai Physical Therapy 3, 49-57, 2003

  The function of the foot has a truss function including a lateral arch (lateral foot arch), an inner longitudinal arch (inner longitudinal foot arch), and an outer longitudinal arch (outer longitudinal foot arch). That is, the truss function is a dome composed of a horizontal arch, an inner vertical arch, and an outer vertical arch, and these three points correspond to the thumb ball part, the little finger ball part, and the rib ground contact part. . The truss function pushes up the foot arch from the bottom of the foot as a bone structure and expands the base of the foot against the load and impact transmitted from the standing surface during standing, walking, and running. Absorb. Moreover, the expansion of the basal plane at the time of load contributes to the improvement of the standing balance ability.

  Even in the above prior art, although the elastic stretchable part is formed and arranged stronger than the other part in the specific part from the viewpoint of restoring the horizontal arch and the vertical arch to a substantially normal state, the effect is not yet sufficient. This is not the case, especially for the reinforcement of the inner longitudinal arch in the truss function.

  In addition, the subtalar joint plays an important role in the distribution of floor reaction force and the exertion of anterior driving force, and performs a foot-strike at the inversion position of the rib accompanying the supination movement of the foot, Later, the floor reaction force is distributed by the relaxation of the foot arch through the mid-support, and the pronation of the subtalar joint of the mid support from the foot strike, the lowering of the inner longitudinal arch of the foot, and the outside of the foot Where rolling motion can be a problem, this measure has not been fully considered.

  The present invention has been made in view of the above-described problems of the prior art, and its purpose is to enhance the truss function, stabilize the subtalar joint, etc., and thereby improve the stability during standing and exercise. The object is to provide socks that can be improved.

The sock of the present invention is formed in the inner region of the foot from the outer rib part to the thumb proximal phalanx part, and is provided around the thumb proximal phalanx part in the thumb proximal phalanx part. A relatively low-stretch first region, connected to the first region, and formed to reach the first region from the outer rib side end of the first region through the instep. A relatively low-elasticity second region, and the bottom of the foot, formed in a triangle with the thumb ball part, the little finger ball part, and the rib ground contact point as vertices. and the line leading to the parts front, and a straight line extending in the cuboid proximal from cuboid distal end, and a straight line extending in the cuboid distal end from the thenar portion front, the cubic from the calcaneus ground portion front A substantially trapezoidal third region with a straight line leading to the proximal end of the bone as a side, a relatively low stretchable third region, and connected to the third region so as to surround the instep A relatively low stretchable fourth region, a bottom surface of the thumb ball region, the little finger ball region, and the rib ground contact region, and the same material and And a fifth region of the knitted structure.

  In one embodiment of the present invention, the second region passes through a portion corresponding to the scaphoid bone in the instep portion, and the fourth region includes a portion in the instep portion that does not correspond to the Lisfranc joint. It is characterized by passing.

  According to the present invention, a relatively low stretch region is formed in a predetermined part of the sock to reinforce the truss function, stabilize the subtalar joint, etc. Can be improved.

It is the block diagram seen from the right leg inner side of socks. It is the block diagram seen from the right leg outer side of socks. It is the block diagram seen from the right foot sole of socks. It is the block diagram seen from the right leg foot sole of socks. It is a photograph of the right foot outside of the taping. It is a photograph of the right foot inside the taping. It is the photograph seen from the right foot sole of taping. It is the photograph seen from the right foot sole of taping. It is a graph figure of the open eye gravity center total locus | trajectory length of a bare foot, an insole, and taping. It is a graph figure of a closed eye gravity center total locus | trajectory length of a bare foot, an insole, and taping. It is a graph of the total angle variation index of bare feet, insole, and taping. It is a graph figure of the unit time variation index of bare feet, insole, and taping. It is a photograph of the right foot outside of the prototype socks. It is a photograph inside the right side of the prototype sock. It is the photograph seen from the right foot sole of the prototype socks. It is a photograph seen from the right footpad of the prototype socks. This is a photograph of the prototype sock as seen from the right foot.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the following embodiment is an exemplification, and the present invention is not limited to the following embodiment.

<Basic principle>
First, the basic principle of socks in this embodiment will be described.

  As described above, the foot has a truss function from the horizontal arch, inner vertical arch, and outer vertical arch, and the base of the sole is enlarged against load and impact when standing, walking, and running. It absorbs shocks and contributes to the improvement of standing balance ability.

  The three points of the truss function are the thumb ball, the little ball, and the rib contact point, which is the connection point of the truss mechanism and the static and dynamic stability of the sole at the center pressure of the foot pressure. There are sexual sensory receptors.

  For center of gravity movement during walking and running, the position of the center of gravity changes from the ribs on the bottom of the foot to the outer vertical arch, traverses the foot from the little toe ball, and then changes in the vertical direction. Then draw a trajectory to the bottom of the thumb. Therefore, although the standing vertical stability during movement is in the outer vertical arch, the inner vertical arch contributes to the expansion of the basal plane related to shock absorption and standing stability. The medial longitudinal arch is an arch formed from the radius nodules to the first metatarsal bone beyond the talus, scaphoid, and medial wedge bone.

  Furthermore, since the pronation movement of the subtalar joint from the foot strike to the mid support and the lowering of the foot inner longitudinal arch are problems, it is necessary to suppress the lowering of the inner arch and the pronation movement of the subtalar joint. is there.

Therefore, in the present embodiment, in addition to reinforcing the truss function by providing a relatively low stretch region at the position of the arch portion of the foot,
(1) Reinforce the inner vertical arch that contributes to the expansion of the basal plane related to shock absorption and standing stability, and suppress the lowering of the inner vertical arch. (2) At the connection point of the truss mechanism and foot pressure Maintain the sensibility of the three parts of the thumb ball, the little ball, and the rib contact point where there are sensory receptors related to the static and dynamic stability of the sole at central pressure etc. (3) Talar By suppressing the pronation of the lower joint, the stability of standing and exercising is further improved.

  Regarding (1) above, the main stabilization structure of the medial longitudinal arch is the plantar ligament and the plantar ligament ligament (spring ligament), especially the plantar aponeurosis is important It is known that In order to reinforce the plantar aponeurosis, the region corresponding to the plantar aponeurosis of the sock, specifically, the region extending from the rib to the thumb proximal phalanx is relatively low in elasticity (in other words, A region of relatively strong elastic contractility).

  Regarding (2) above, in order to maintain the sensitivity of the three points of the thumb ball part, the little finger ball part, and the rib ground contact part, the regions corresponding to these three points of the socks are the same fabric and the same. Knitting organization.

  Regarding (3) above, a region of relatively low stretchability (in other words, relatively strong elastic contractility) is provided in a region corresponding to the subtalar joint of the sock.

  The sock of this embodiment achieves stability improvement during standing and exercising by providing a relatively low stretchable region in the sock so as to satisfy the above (1) to (3).

  Next, a specific configuration of the sock in the present embodiment will be described. Since the right and left socks are symmetric, the following description will be made taking the right foot as an example.

<Specific configuration>
1-4 shows the block diagram of the sock in this embodiment. 1 is a configuration diagram viewed from the inside of the right foot, FIG. 2 is a configuration diagram viewed from the outside of the right foot, FIG. 3 is a configuration diagram viewed from the sole side of the right foot, and FIG. It is the block diagram seen from the back side of the right foot. The sock of the present embodiment includes a region 10 as a first region, a region 12 as a second region, a region 11 as a third region, a region 14 as a fourth region, and a region 13a as a third region. , 13b, 13c.

  As shown in FIG. 1 and FIG. 2, relative to the medial side and the sole of the right foot from the outer radius 100 to the thumb proximal phalanx (or the first proximal phalanx) 200. Thus, the low stretch region 10 is formed. In other words, the region 10 starts from the outer rib part 100 and surrounds the rib part, and is formed along the inner side of the right foot from the rib part to the thumb proximal phalanx part 200. As shown in FIG. 3, the region 10 is formed so as to surround the thumb proximal phalanx 200 in the thumb.

  Although the height H of the side part of the region 10 is not particularly limited, for example, considering that it is provided around the thumb proximal phalange 200, the dimension is approximately the same as the height of the thumb proximal phalange 200. Is preferable. Further, in consideration of surrounding the outer rib portion 100 so as to surround it, it may be set according to the height of the rib. Further, the width W of the bottom portion of the region 10 is not particularly limited, but is preferably a small size that does not affect the thumb ball portion 300 and the rib ground contact portion 500 that are connection points of the truss mechanism.

  In order to make the region 10 relatively low stretchable, a relatively low stretchable material or knitted structure is used compared to other regions, or a relatively low stretchable material or knitted structure is used. . An example of a relatively low stretch material is a rubber pad, and an example of a relatively low stretch knitted structure is tack knitting, but is not limited thereto.

  On the other hand, even if the region 10 is relatively low stretchable, if the material of the outer side stretches when the socks are worn, the result is that the forcible force of the inner vertical arch originally desired by the region 10 cannot be obtained. .

  Therefore, the region 12 is formed so as to go around the instep, and the end of the region 12 is connected to the region 10. The region 12 passes through the region corresponding to the scaphoid bone, one end on the inner side is connected to the point P in FIG. 2, specifically, the region 10 near the rib position, and the other end on the outer side is the point Q in FIG. Specifically, the outer rib portion 100 is connected to the region 10. The region 12 is a relatively low stretchable region like the region 10.

  Accordingly, when focusing on both ends of the region 10, the toe side end of the region 10 is provided around the thumb proximal phalanx 200, and the heel side end of the region 10 is connected to the ankle via the region 12. Since both ends are locked to the thumb and ankle respectively, the extension of the material of the outer part when wearing the socks is suppressed, and the inner vertical length by the region 10 is reduced. Ensuring arch force is ensured. The region 12 not only secures the low stretchability of the region 10, but also has an effect of suppressing the displacement of the scaphoid by being provided at a position corresponding to the scaphoid bone.

  Further, as shown in FIG. 3, a relatively low stretchable region 11 is formed in a portion corresponding to the arch, and both left and right ends thereof are connected to a region 14 formed so as to go around the instep. . The region 11 and the region 14 maintain and reinforce the lateral arch.

  As shown in FIG. 3, the positions of the three points of the truss function are the thumb ball part 300, the little finger ball part 400, and the rib ground contact part 500. Therefore, the shape of the region 11 is a triangle having these three points as vertices. It is preferable to have a shape that covers the inside of the triangle as much as possible. For this reason, in this embodiment, the shape of the region 11 includes a straight line extending from the front of the thumb ball unit 300 to the front of the rib contact portion 500, a straight line extending from the distal end to the proximal end of the cubic bone, and the thumb It is formed so as to have a substantially trapezoidal shape with a straight line extending from the front of the spherical portion 300 to the distal end of the cubic bone and a straight line extending from the front of the rib ground contact portion 500 to the proximal end of the cubic bone.

  The region 14 is formed so as to pass through the instep of the foot, but preferably passes through a portion other than the position corresponding to the Lisfranc joint so as not to suppress the movement of the metatarsal bone.

  Furthermore, in the regions 13a, 13b, and 13c corresponding to the thumb ball part 300, the little ball part 400, and the rib ground contact part 500, which are the three points of the truss function, respectively, in order to maintain the balance sense function of the foot pressure center point , The same material and knitting structure. Note that the material and knitting structure of the regions 13a, 13b, and 13c may be different from other regions other than the regions 10, 11, 12, and 14, and may be the same as the other regions. In the latter case, the material and knitting structure of the regions 13a, 13b, and 13c and the surrounding regions are the same, so that there is no boundary.

  As described above, the sock of the present embodiment is formed so that the regions 10, 11, 12, and 14 have relatively low stretchability, and the regions 13a to 13c have the same material and knitted structure. The truss function can be reinforced and the subtalar joint can be stabilized to improve the stability during standing and exercise.

  That is, the relatively low expansion / contraction region 10 reinforces the function of the plantar aponeurosis that maintains the inner longitudinal arch associated with the truss mechanism at the beginning of the load, and at the maximum load, the region 10 extends from the inside of the foot to the base of the thumb. Because it exists in the phalanx, pulling the thumb more inward using the tension from the expansion of the truss mechanism enlarges the basal surface of the plantar part, coupled with stabilization of the subtalar joint. This improves the stability effect of the center of gravity. FIG. 4 shows the tensile force F1 inside the foot at the time of the maximum load and the inner traction force F2 applied to the thumb with this. This inner traction force F2 contributes not only to the enlargement of the base of the sole, but also to the so-called knee-in toe out (the state where the knee enters the toe when the knee is bent and the toe faces the outside of the knee). obtain. Also, when walking or running, the toe dorsiflexes at the point of separation and the plantar aponeurosis is rolled up to increase the medial longitudinal arch. The roll of the plantar aponeurosis is reinforced to maintain the medial longitudinal arch. .

  In the present embodiment, the regions 16 and 18 having relatively low stretchability are also formed in the ankle portion, but this is not essential because it is intended to suppress slippage during wearing.

  In the present embodiment, the regions 10, 11, 12, and 14 are relatively low-stretch regions, which correspond to the other regions 20 (for example, the region corresponding to the talus and the fifth metatarsal bone). This means that the stretchability is lower than the stretchability in the portion), but the stretchability in the regions 10, 11, 12, and 14 may be the same or different from each other. For example, the material or the knitting structure may be changed so that the region 10 which is a main region for reinforcing the role of the inner arch has the lowest stretchability. Furthermore, it is needless to say that the regions 10, 11 and the like have a high pressure on the skin.

  Next, examples will be described.

Example 1 is the result of reproducing the effect that is the basis of the sock of this embodiment by taping.
The subjects were 30 healthy adults and 26.8 ± 6.7 years of age (18 men and 12 women), and the subjects were measured three times.
In the measurement
(1) Bare feet (2) Insole SUPER feet When trim black (hereinafter referred to as “Insole” (impact trading) Co., Ltd.) is mounted (3) Fixing by taping (hereinafter referred to as “tape”) simulating the sock The time measurement was performed, and the comparison between the three groups was performed.

  5-8 is a photograph which shows the aspect of the fixing by taping imitating the sock of this embodiment. 5 is a photograph showing the outer surface of the sole tape, FIG. 6 is a photograph showing the inner surface of the sole tape, FIG. 7 is a photograph showing the sole surface of the foot tape, and FIG. Side).

  As can be seen from these figures, the tape is applied from the outer rib part to the thumb proximal phalanx part, and is attached so as to go around the upper part from the arch part. Furthermore, it sticks so that a rib may be surrounded from an arch part to an outer rib part. As shown in FIG. 7, the tape is not affixed to the thumb ball part 300, the little finger ball part 400, and the rib ground contact part 500. These tapes approximate the regions 10, 11, 13a, 13b, 13c, 14 on the socks. In the case of a tape, since the problem that the material of the outer side portion expands unlike the case of socks does not occur, the tape corresponding to the region 12 is not attached.

  As a method of analysis, the comparison between the three groups was performed by a one-factor within-subject analysis of variance. In all tests, SPSS Statistics 2.1 was used and a risk rate of less than 5% was considered significant.

  The measurement items are Functional Reach Test (hereinafter referred to as FRT) as standing balance ability, and for the center of gravity stability element by stationary standing, the total trajectory length when opening and closing eyes by standing for 30 seconds with GS-30 (Anima Co.) The unit area trajectory length, the rectangular area, and the outer peripheral area were measured. In addition, as a dynamic center-of-gravity stability factor, the total angle variation index and unit time variation index were examined using Dijok Board Ver3.0 (Sakai Medical Co., Ltd.).

  As a result, the balance ability between the three groups and the comparison between the three groups by FRT were 39.9 ± 7.0 cm for the bare feet group, 39.6 ± 6.0 cm for the insole group, 42.5 ± 6.2 cm for the tape group (P = 0.05), the tape group was longer among the three groups, and in comparison between the groups, the tape group (P = 0.01) was significantly longer in the FRT distance than the insole group.

  From the comparison between the three groups about the center of gravity stabilization element by the standing position, the total trajectory length of the comparison between the three groups in the open eye standing position 30 seconds is 43.5 ± 9.2 cm in the bare foot group, 41.9 ± 8.5 cm in the insole group, The tape group was 34.8 ± 9.0 cm (P = 0.001), and the distance between the tape groups was short among the three groups. In comparison between groups, the tape group (P = 0.001) rather than the bare foot group, the tape group (P = 0.001) rather than the insole group, among the 3 groups, the tape group is between the other 2 groups The distance of the total trajectory length was significantly shorter than that.

In unit area trajectory length, bare foot group 2.2 ± 0.9 cm ² , insole group 2.3 ± 1.0 cm ² , tape group 1.6 ± 0.7 cm ² (P = 0.001) among 3 groups, The area of the tape group became narrow. In comparison between the groups, the area of the tape group (P = 0.01) was significantly narrower than that of the bare foot group. In rectangular area, bare foot group 5.7 ± 2.6 cm ² , insole group 6.0 ± 2.8 cm ² , tape group 4.4 ± 2.1 cm ² (P = 0.01) among 3 groups, tape group The area of was narrowed. In comparison between the groups, the tape group (P = 0.05) was significantly narrower than the insole group.

In comparison between the three groups according to the outer peripheral area, the bare foot group 1.5 ± 0.8 cm ² , the insole group 1.7 ± 0.9 cm ² , the tape group 1.2 ± 0.6 cm ² (P = 0.01), the three groups During this time, the area of the tape group became narrow. In the comparison between each group in the tape group, the tape group (P = 0.05) rather than the bare foot group, the tape group (P = 0.05) than the insole group, and the tape group than the other two groups. The area was significantly narrowed.

  From the comparison between the three groups regarding the dynamic center-of-gravity stability factor, the comparison between the three groups based on the total angle variation index shows that the bare foot group 488.1 ± 164.1, the insole group 458.3 ± 133.5, and the tape group 414.7 ± 122. 4 (P = 0.01), the value of the tape group was low among the three groups. In comparison between the groups, the tape group (P = 0.01) rather than the bare foot group, the tape group (P = 0.05) rather than the insole group, among the three groups, the tape group is between the other two groups It was significantly lower than.

  In comparison between the three groups using the unit time variation index, the bare foot group 162.7 ± 54.7, the insole group 152.8 ± 44.5, the tape group 138.1 ± 40.8 (P = 0.01), the three groups During this period, the value of the tape group was low. In comparison between the groups, the tape group (P = 0.05) was significantly lower in the tape group than in the insole group among the three groups. See the difference between the three groups for the omnidirectional stability index, left / right stability index, front / rear stability index, omnidirectional average displacement, left / right average displacement, front / rear average displacement, omnidirectional angle variation area, left / right angle variation area, front / rear angle variation area I couldn't.

  FIGS. 9 to 12 are graphs showing the differences in the total length of the open-eye center-of-gravity sway, the total length of the closed-eye sway, the total angle variation index, and the unit time variation index among the three groups.

  From the above, the comparison between the three groups reduces the FRT distance as a standing balance, the total trajectory length of the center of gravity swing when standing still, the unit area trajectory length, the rectangular area, the stability of the center of gravity at rest from the perspective of the outer circumference area, Furthermore, from the dynamic stability based on the total angle variation index and the unit time variation index, the fall prevention effect by the taping fixing method simulating the sock of the embodiment was seen.

  Example 2 is a result of confirming the effect of a sock simulating the sock of the present embodiment (hereinafter referred to as “prototype sock”). This prototype sock reproduces the region 10 and the like by attaching a tape to a specific position of a commercially available sock and relatively reducing its elasticity.

  FIGS. 13 to 17 show appearance photographs of prototype socks. FIG. 13 is a photograph of the outer side of the right foot, corresponding to FIG. FIG. 14 is a photograph of the inside of the right foot, which corresponds to FIG. FIG. 15 is a photograph of the right foot sole, corresponding to FIG. FIG. 16 is a photograph of the right footpad. FIG. 17 is a photograph of the back of the right foot and corresponds to FIG.

  As in Example 1, the subjects were 30 healthy adults and the age was 26.8 ± 6.7 years (18 men, 12 women), and the subject was measured three times. The measurement items are Functional Reach Test (hereinafter FRT) as standing balance ability, and for the center of gravity stability element by stationary standing, the total trajectory length at the time of eye opening by standing for 30 seconds by CG-30 (Anima Co., Ltd.) It was measured.

  In the FRT with balance ability, a prototype sock group of 45.8 ± 8.5 cm (P = 0.05) was obtained for the bare foot group of 39.9 ± 7.0 cm. The total time trajectory length was 38.1 ± 11.6 cm (P = 0.05) for the prototype sock group, compared with 43.5 ± 9.2 cm for the bare foot group. Therefore, it was confirmed that the prototype sock group is more effective in improving the stability of the center of gravity and suppressing the swaying of the center of gravity when the standing eye is open compared to the bare foot group.

10, 11, 12, 14 Low stretch region, 13a thumb ball corresponding region, 13b little finger ball corresponding region, 13c rib ground contact region corresponding region.

Claims (2)

Relatively low stretchability formed in the inner region of the foot from the lateral rib portion to the thumb proximal phalange portion and provided around the thumb proximal phalange portion in the thumb proximal phalange portion A first region of
A relatively low-stretch second region connected to the first region and formed from the outer radial side end of the first region through the instep to the first region;
It is formed in a triangle on the bottom of the foot, with the thumb ball, the little ball, and the rib ground contact point at the apex, and the straight line from the thumb ball front side to the rib contact point front side and from the distal end of the cube bone substantially trapezoidal to a straight line leading to the cuboid proximal end, and a straight line extending in the cuboid distal end from the thenar portion front, and sides of the straight line extending in the cuboid proximal end from the calcaneus ground portion front A third region of relatively low stretch in shape;
A relatively low stretchable fourth region connected to the third region and formed to surround the instep;
A fifth base region of the same material and knitting structure formed on the region of the thumb ball, the region of the little finger ball, and the region of the rib contact portion on the bottom of the foot;
A sock characterized by comprising. The second region passes through a part corresponding to the scaphoid bone in the instep,
The sock according to claim 1, wherein the fourth region passes through a portion of the instep portion that does not correspond to a Lisfranc joint.