JP7214956B2 - socks - Google Patents

Description

The present invention relates to socks. Specifically, by stimulating specific parts of the sole of the foot to induce unconscious somatic reflexes in specific muscles of the foot, the arch structure of the sole is optimized, resulting in flat feet, floating toes, plantar fasciitis, and calcaneus. The present invention relates to socks that are effective in improving and preventing foot symptoms such as bursitis and improving physical exercise ability.

In order for humans to walk on two legs, the soles of the feet originally form arch structures. Specifically, as shown in FIG. 1, the medial longitudinal arch A1 from the base of the first toe (big toe) to the medial side of the calcaneus, and the arch A1 from the base of the fifth toe (little finger) to the lateral side of the calcaneus. Three arch structures are seen, the lateral longitudinal arch A2 and the lateral arch A3 along the MP joints (metatarsophalangeal joints) from the 1st to 5th toes, forming the "arch" In addition, each function facilitates posture control in the forward/backward direction, left/right direction, and horizontal rotation. In addition, each arch structure acts like a spring, absorbing and mitigating the impact on the foot. Since such an arch structure is gradually formed by walking upright on two legs, a newborn infant does not have such an arch structure. In addition, upright bipedal locomotion is observed in animals other than humans, but only humans have arches.

However, in recent years, the number of people with so-called flat feet or "floating toes" in which the tips of the toes do not touch the ground when standing is increasing. Flat feet and floating toes are conditions in which the arch structure of the sole of the foot does not function sufficiently, and the toes cannot be used to grasp the ground when walking, resulting in unstable body posture and reduced exercise capacity. cannot perform sufficiently. In addition, if the arch structure of the sole is incomplete, the impact cannot be absorbed sufficiently, and the muscles and joints of the sole are damaged and prone to inflammation, resulting in plantar fasciitis, sesamoid disorders, and external injury. It causes various diseases of the foot such as tibial disorders, calcaneal fissures, and calcaneal bursitis. In order to deal with this problem, various orthodontic devices aimed at optimizing the arch structure of the sole, or prior art techniques such as shoes, insoles, and socks having orthodontic functions have been proposed.

For example, in Patent Document 1, when worn on the foot, the vicinity of the proximal phalanx of the MP joint between the cuboid epiphysis of the foot and the vicinity of the wedge-cuboid joint between the second and third metatarsals Disclosed is a sock provided with a sole contact arch forming part consisting of a protuberant part that abuts on the part up to and raises the part to hold it in an arch shape, and a concave part in which the MP joint is fitted to the MP joint part. It is

Further, in Patent Document 2, a first support portion arranged from the oblique head of the adductor pollicis muscle of the foot along the peroneus longus muscle, and a rear side of the foot formed continuously with the first support portion A foot balance belt and a foot balance sock are disclosed, which are provided with a second support part that is engaged with the part, and in which at least one of the first support part and the second support part is stretchable.

Further, Patent Document 3 discloses an indirect extrusion structure that indirectly pushes the medial longitudinal arch toward the instep by pushing out a predetermined arch structure of the skeleton of the foot from the sole of the foot toward the instep. A sock provided on the sole of the foot is disclosed.
Japanese Unexamined Patent Application Publication No. 2009-41141 Japanese Unexamined Patent Application Publication No. 2016-165432 Japanese Unexamined Patent Application Publication No. 2018-40103

All of the above prior arts use configurations such as ridges and extruded structures to directly or indirectly push up the arch of the foot or pull the skeleton of the foot through the elasticity of a stretchable belt to mechanically force the foot. It basically corrects the arch structure of the sole of the foot. As long as the skeletal structure of the sole is corrected mechanically and forcibly in this way, the structures such as protuberances, extruded structures, and belts naturally exert continuous stimulation and load on specific muscles, ligaments, and tendons of the foot. will give

On the other hand, it is known that human skeletal muscle has a muscle spindle, which is an organ that senses the degree of extension of the muscle. Muscle spindles are located inside striated muscles, and are a spindle-shaped group of muscle fibers (intramidal muscle fibers) that are much finer than normal striated muscle fibers and are surrounded by a membrane of connective tissue. The terminals of finely branched sensory nerve fibers enter the internal muscle fibers, and when the intrafusal muscle fibers extend as the skeletal muscle elongates, these nerve terminals excite and emit impulses.

Therefore, when certain muscles, ligaments, and tendons of the foot are continuously stimulated or loaded, the muscle spindles are constantly excited and the muscles become stiff, unconsciously trying to balance other related muscles. It can strain the muscles and, as a result, distort the posture of the body itself. As an example of such a phenomenon, when walking with a small stone stuck in the shoe, the toe is continuously strongly stimulated by the stone, and the muscles of the toe, etc. are unconsciously contracted to escape from the stimulation of the stone. It is empirically known that as a result of contraction, the muscles of the lower leg become tense and the walking posture becomes asymmetric.

In addition, the arch structure of the sole is properly formed by the action of muscles that flex the toes, and the arch structure of the sole is formed by forcibly pushing up and pulling up the arch independently of the toes. If you try to make it, it will rather lead to a state of floating fingers. Therefore, the means of forcibly optimizing the arch structure of the sole by means of a mechanical configuration, as in the prior art, may rather lead to the harmful effects of distorting the posture and balance of the body, which is a physiological problem. It can be said that it has

The present invention was invented in view of the above-mentioned problems of the prior art. Through the physiological action of unconscious muscle contraction due to somatic reflexes, we provide socks that can improve and prevent flat feet, floating toes, and related foot diseases by autonomously optimizing the arch structure of the sole. The task is to

In order to solve the above-mentioned problems, the sock described in claim 1 of the present invention is provided at the site of the metatarsophalangeal joints of the third to fifth toes on either the inner surface or the outer surface of the sole. Between the first band-shaped stimulating body consisting of a thin band-shaped elastic body that contacts only the interphalangeal joint of the second and third toes and the second and third metatarsal bones from the interphalangeal region and a second band-shaped stimulating body made of a thin band-shaped elastic body that abuts only on a portion below the metatarsophalangeal joint along the medial tarsal globules.

In addition, the sock described in claim 2 is a thin belt-like elastic body that contacts only the metatarsophalangeal joints of the first and second toes on either the inner surface or the outer surface of the sole. and from the interphalangeal region between the metatarsophalangeal joints of the second and third toes to the medial tarsal globules along between the second and third metatarsals and a second strip-shaped stimulating body made of a thin strip-shaped elastic body that abuts only on a portion below the metatarsophalangeal joint . That is, instead of the first band-shaped stimulating body in the sock according to claim 1, a third band-shaped stimulating body is provided that abuts on the metatarsophalangeal joint (MP joint) of the first and second toes. The second strip-shaped stimulating body is the same as the sock described in claim 1.

Further, the sock described in claim 3 is the sock described in either claim 1 or 2, wherein either the inner surface or the outer surface of the sole portion of the sock further includes a calcaneus of the sole. and a fourth strip-shaped stimulator comprising a pair of thin strip-shaped elastic bodies separated in a substantially V-shape to abut on the front part of the body.

The band-shaped stimulating body is a thin tape-shaped elastic body having a certain width, and is provided by bonding or printing a predetermined length to a predetermined position on the inner or outer surface of the sole portion of the sock body. When provided on the inner surface of the fabric, the strip-shaped stimulating body directly abuts the skin of the sole to provide stimulation, so the strip-shaped stimulating body may be very thin. On the other hand, when it is provided on the outer surface of the fabric, it is desirable to slightly increase the thickness because the stimulus is applied indirectly by sandwiching the fabric between the sole and the sole. The material of the band-shaped stimulator has the elasticity to follow the sole of the sock that expands and contracts with the movement of the sole when worn, and the elasticity to give an appropriate stimulation that can induce the somatic reflex described later on the skin of the sole. It is desirable to have For example, silicone resin is suitable because it has elasticity, can be arbitrarily adjusted in hardness, has water resistance, can be molded into a tape shape and adhered, and can be directly printed on fabric in a molten state. is.

Here, the somatic reflex will be specifically described. The human body is equipped with a variety of reflexes, and their functions are divided into visceral reflexes (autonomic nerve reflexes) that contract visceral muscles and promote secretion of glands via the autonomic nervous system, and contraction of skeletal muscles. It is roughly divided into the somatic reflex that causes Somatic reflexes include deep reflexes that directly induce movement of related muscles and superficial reflexes that react with the surface of the skin. It is one of the sexual reflexes.

In addition, the human body perceives external physical stimuli through receptors. Receptors include superficial receptors distributed in the skin, mucous membranes, and subcutaneous tissue, and deep receptors distributed in muscles, tendons, ligaments, joints, periosteum, etc. , Meissner's corpuscles, and other superficial receptors collectively called "mechanoreceptors." It is known that when mechanoreceptors sense a minute touch stimulus, they unconsciously contract specific muscles depending on the site, inducing a somatic reflex that produces a reaction as movement.

As mentioned above, the somatic reflex is a physiological action that causes skeletal muscles to contract unconsciously due to minute stimulation of mechanoreceptors. It is completely different from action. Stimulation of acupuncture points by shiatsu, etc. requires strength that reaches the meridians of the deep part of the body. has a height of However, the large stimulation given by these protrusions and the like is not mechanoreceptors in the skin, but a direct stimulation to the muscles and skeleton, so that the somatic reflex is not induced. Similarly, action by mechanical and coercive means according to the prior art mentioned above also does not evoke somatic reflexes.

On the other hand, the strip-shaped stimulator according to the present invention provides a very fine stimulus to the mechanoreceptor of the skin, and does not stimulate a so-called acupuncture point. do. The strip-shaped stimulating body may be provided on the inner surface of the sole fabric of the sock (the surface that touches the skin of the sole) or on the outer surface (the surface that touches the floor or footwear). The skin on the sole of the foot is a sensitive part of the human body where mechanoreceptors are particularly concentrated. Therefore, if the material is silicone resin, the thickness of the band-shaped stimulator (the height of protrusion from the fabric) should be 1 mm or less. When it is provided on the inner surface of the sole, the thickness is preferably 0.3 to 0.5 mm. On the other hand, when it is provided on the outer surface of the sole, the thickness is preferably 0.5 to 1.0 mm. The width of the band-shaped stimulator is preferably 5 mm or less, preferably about 3 mm, because if it is too wide, it will be difficult to recognize it as a projection by the mechanoreceptor on the skin of the sole. The length of the band-shaped stimulator is appropriately determined according to the site where the somatic reflex is to be induced, as will be described later.

When the sock according to the present invention is put on, the wearer hardly notices the presence of the strip-shaped stimulating body because the strip-shaped stimulating body is extremely thin as described above. However, when the stimulator band comes into contact with the skin at the site where specific mechanoreceptors are concentrated on the sole of the foot, a somatic reflex is induced, and specific toe flexor muscles are unconsciously contracted to bend the toes. Therefore, as will be described later, by providing the strip-shaped stimulator at an appropriate site, it is possible to autonomously optimize the arch structure of the sole without relying on mechanical or forced means.

Here, the structure of the skeleton and muscles of the sole and the site where the strip-shaped stimulating body is provided will be described. FIG. 2 is a schematic diagram of the skeletal structure of the foot viewed from the sole of the right foot. The skeleton of the foot is largely composed of a group of toes, a group of metatarsals, and a group of tarsus. Mechanoreceptors are distributed all over the sole of the foot, but are particularly concentrated around the metatarsophalangeal joint (MP joint) where the toes and metatarsals are connected and the Chopard joint at the front end of the calcaneus. The MP joint is a joint that serves as a base point for flexion movement of each toe, where the proximal phalanx and metatarsal bone of the toe are connected. In addition, the sole of the foot at the position of the MP joint forms a thick medial tarsal ball from the ball of the foot at the base of the big toe to the ball of the little toe at the base of the little toe. When standing, the medial tarsal globules support most of the body weight together with the heel (the part directly below the calcaneus), and when walking, the medial tarsal globules work together with the abdomen of each toe to support the ground. It is the most important part of the leg movement and the most stressful part because it kicks backwards.

Also, as shown in FIG. 1, a thick membrane-like muscle called plantar fascia (aponeurosis) is stretched from the front end of the metatarsal bone to the front end of the calcaneus, and this plantar fascia is the sole of the foot. While holding the arch structures A1 and A2, it is mainly responsible for impact on the feet and maintaining balance during walking. In recent years, plantar fasciitis, in which the plantar fascia is damaged or inflamed by overuse of the foot or by receiving a large impact or load, has become a problem. In addition, modern people tend to have weak toes, decreased flexibility of calf muscles, and slow heel separation from the ground when walking due to posterior tilt of the pelvis due to stooped back. These are states in which the arch structure of the sole does not function sufficiently, which causes flat feet and floating toes. As a result, the plantar fascia is put in an excessively stretched state and a load is applied, so that plantar fasciitis easily develops. Furthermore, if the arch structure of the sole is insufficient, not only will it not be possible to absorb the impact to the foot well, but it will also be disadvantageous in maintaining the balance of the body when shifting weight and kicking off the ground. Exercise performance will also decline.

Figures 3-6 are schematic diagrams showing the placement of the major muscles involved in maintaining proper arch structure of the sole of the foot and the general coverage of the nerves innervating those muscles. The muscles in the figure are shown by connecting the origin and insertion positions with lines, and do not show the specific shape of each muscle. The same applies to nerve control areas. FIG. 7 is a table summarizing the positions and functions of origins and stops of individual muscles, nerves controlling them, and the like.

Here, the action of the first band-shaped stimulator that abuts on the MP joints of the third to fifth toes in the construction of the sock set forth in claim 1 of the present invention will be described first. A somatic reflex is induced in the lateral plantar nerve N1 by applying a weak stimulus to the skin below the MP joint on the front side of the medial tarsal globulus on the sole of the sock wearer with the first band-shaped stimulator. As shown in FIGS. 3 and 4, the abductor digitorum minimus M1, flexor digitorum brevis M2, opposite digitorum muscle M3, flexor digitorum brevis M4, and flexor digitorum longus M5 contract unconsciously. Therefore, the sole of the foot is bent (plantar flexion) with the little toe side dominant, and the lateral longitudinal arch structure A2 is maintained in an appropriate shape. In addition, as shown in FIG. 4, since the worm-like muscle M6 originates from the tendon of the flexor digitorum longus M5 and ends at the MP joints of the second to fifth toes, the induced somatic reflexes of the flexor digitorum longus muscle These four toes are flexed together with M5, and the plantar fascia itself is contracted to keep the arch structure A2 in a proper shape. Furthermore, the abductor digitorum minor muscle M1 and the flexor digitorum brevis muscle M4 originate from the calcaneus, which is under the control of the tibial nerve N3. The tibialis posterior muscle M7, soleus muscle M8 of the calf at the posterior calf, giving rise to an ascending muscle chain that contracts. For this reason, the flexion (plantar flexion) of the sole is also encouraged, and it acts to internally rotate the heel (externally rotate the toe). As a result, when walking, the heel steps on a straight line under the midline and the pelvis alternately rotates while walking, which is an effect of promoting so-called "uniaxial walking". Uniaxial walking allows for a large stride and efficient propulsion, making it suitable for straight walking (running) such as walking and running, and external rotation of the toes reduces contact between the toes and footwear Therefore, the symptoms of hallux valgus and bunion little toe can be reduced. In the present invention, the term "flexion" of the toes does not refer to a state in which the toes are actually greatly bent, but to a state in which the flexor muscles are contracted in the direction of bending the toes.

Next, the action of the second strip-shaped stimulator will be described. The second zonal stimulator extends from the interphalangeal region between the second and third metatarsal interphalangeal joints to the medial tarsal globulus along between the second and third metatarsals. It abuts on the area below the joint. The second zonal stimulating body abuts and stimulates the muscles related to the 2nd and 3rd toes, which are innervated by the worm-like muscle M6, especially the medial plantar nerve N2. A flexing somatic reflex is produced, which acts to draw the 4th and 5th toes together and properly hold the lateral arch structure A3 of the sole. At this time, contraction of the abductor lesser muscle M1, which is the only muscle that abducts the lesser toe, the flexor lesser toe muscle M2, and the opposite toe lesser muscle M3 also promotes the action of holding the arch structure A3.

The sock described in claim 2 is provided with a third strip-shaped stimulating body that abuts on the MP joints of the first and second toes instead of the first strip-shaped stimulating body. As shown in FIG. 5, the stopping points of the flexor toe brevis muscle M9 and the abductor toe muscle M10 under the control of the medial plantar nerve N2 are concentrated at this site, and both muscles connect the MP joint of the big toe. It is the flexor muscle that flexes. Both muscles contract autonomously due to the somatic reflex caused by the stimulation of this site by the third strip-shaped stimulating body, and the arch structure A1 on the inner side in the longitudinal direction is properly maintained. In addition, the thumb adductor muscle M11 originates from the vicinity of the Lisfranc joint of the tarsal bone and stops at the base of the proximal phalanx of the thumb. Since it also originates from the MP joint and participates in the adduction that brings the thumb closer to the little toe, it also promotes the action of holding the lateral arch structure A3. In addition, the somatic reflex caused by the stimulation of the third zonal stimulating body preferentially contracts the flexor muscles on the inside of the foot, namely the flexor toe brevis muscle M9, the abductor toe flexor muscle M10, and the toe adductor toe adductor muscle M11. Acts to externally rotate (internally rotate the toe). This also has the effect of promoting so-called "two-axis walking," in which the user moves his/her legs straight without rotating the pelvis when walking. Biaxial walking can be said to be a walking method suitable for various kinds of work and sports such as martial arts because it has a large resistance to external forces from the left and right directions and can exert the power of the whole body in a well-balanced manner.

The sock described in claim 3 is a pair of substantially V-shaped socks that abut on the inner surface of the sole of the sock described in either claim 1 or 2 and on the front part of the calcaneus on the sole of the foot. A fourth strip-shaped stimulator is provided. As shown in FIG. 3, the flexor digitorum brevis muscle M4, which flexes the second to fifth toes, originates from the lower surface of the calcaneus prominence near the Chopard joint in front of the calcaneus and the plantar fascia. Therefore, the somatic reflex induced at this site acts to bend all the second to fifth toes and the plantar fascia, and the arch structures A1 and A2 are optimized by the first and second zonal stimulators. promote the effect of

The sock according to the present invention has the following effects.
(1) By unconsciously encouraging the proper maintenance of the arch structure of the sole just by wearing it, the natural function of the arch of the foot to absorb shock to the foot can be fully demonstrated. As a result, it is possible to prevent and improve foot diseases such as flat feet, floating toes, and plantar fasciitis.
(2) Instead of correcting the sole of the foot to a proper arch structure by mechanical or forced action from the outside as in the conventional technology, the arch structure is autonomously reshaped using the somatic reflex of the human body. In order to optimize the posture, the load on the body posture, muscles and skeleton is small.
(3) By partially changing the location of the band-shaped stimulator, it is possible to select the action of external rotation/internal rotation of the heel (internal rotation/external rotation of the toe) when walking with socks on. It has the effect of promoting an appropriate walking posture according to the purpose of physical activity.

(First embodiment)
An embodiment of the present invention will be described below with reference to the drawings. FIG. 8 is a bottom view of the sole on the left foot side of the sock S1 according to the first embodiment of the present invention. Each strip-shaped stimulating body 1, 2, 4 in the drawing is assumed to be installed on the inner surface side of the fabric of the sole portion of the sock. FIG. 9 shows the directions and magnitudes of the action of contraction of specific leg muscles by somatic reflex of the band-shaped stimulators 1, 2 and 4 when the sock S1 is worn. The parts of the sock S1 other than the sole part may be the same as those of general socks. The configuration of the part, the toe-side pre-stitched part, the gore line of the heel, etc. is optional.

As shown in FIG. 8, the sock S1 has a first band-shaped stimulating body 1 at the MP joints of the third to fifth toes on the inner surface of the fabric of the sole (that is, the surface that touches the sole). A second strip-shaped stimulating body 2 that abuts on the medial tarsal globulus along between the second and third metatarsals from the inter-toe between the MP joints of the second and third toes, Further, a pair of fourth strip-like stimulating bodies having a substantially V-shape are provided to abut against the front portion of the calcaneus of the sole. Each strip-shaped stimulating body 1, 3, 4 is formed by directly printing and adhering silicone resin to the fabric, and has a width of about 3 mm, a thickness of about 0.5 mm, and a suitable length depending on the size of the sock S1. set.

When the wearer wears the sock S1 and walks, the strip-shaped stimulating bodies 1, 3 and 4 come into contact with predetermined parts of the sole. Since the band-shaped stimulator is extremely thin, the wearer walks without being aware of its existence, but the somatic reflex is induced by giving a weak stimulus to the mechanoreceptor existing in the skin of the relevant part. resulting in the contraction of specific muscles as follows:

The first strip-shaped stimulating body 1 stimulates the skin under the MP joints of the third to fifth toes of the medial tarsal globulus, and is under the control of the lateral plantar nerve N1. It produces a somatic reflex that involuntarily contracts the flexor digitorum M2, the opposite digitorum minimus M3, and the flexor digitorum brevis M4. As a result, the action of bending the third, fourth and fifth toes in the directions of m3 to m5 in FIG. 9 works.

On the other hand, the second strip-shaped stimulating body 2 stimulates the skin of the medial tarsal globulus along the space between the second and third metatarsal bones to produces a somatic reflex that involuntarily contracts the As described above, since the third to fourth toes act to bend in the front-rear direction, the contraction of the worm-like muscle M6 causes the second and third toes to move toward the second strip-shaped stimulating body 2. act to attract each other.

Furthermore, a pair of fourth band-shaped stimulating bodies 4 having a substantially V-shape stimulates the skin below the Chopard joint in front of the calcaneus to induce a somatic reflex that contracts the flexor digitorum brevis muscle M4 originating at this site. Therefore, the 2nd to 5th toes are flexed in the direction of m2 to m5, and the plantar fascia itself is contracted to pull the calcaneus in the direction of m7.

On the outer side of the foot (fifth toe side), the actions m3 to m5 that flex the third to fifth toes and the action that draws the calcaneus in the direction of m7 produce a relatively strong pulling effect in both the front and back directions. It promotes the formation of the directional arch structure A2. Also, the action of pulling the second and third toes together by contraction of the worm-like muscles M6 associated with the second and third toes promotes the formation of a lateral arch structure A3. On the other hand, on the medial side of the foot (side of the first toe), the somatic reflex that flexes the first toe is weak, and the fourth strip-shaped stimulating body 4 contracts the flexor digitorum brevis muscle M4 and the plantar fascia to contract the calcaneus to m7. Since only the drawing action works, the effect of properly shaping the arch structure A1 is produced, but the drawing effect in the front-rear direction is relatively weak. In addition, the somatic reflex caused by the stimulation of the first strip-shaped stimulating body 1 causes the abductor lesser muscle M1 to contract, promoting abduction of the lesser toe. As a result, the pulling effect on the outside of the foot becomes dominant, and the entire foot produces an effect of internally rotating the heel (externally rotating the toe).

(Second embodiment)
FIG. 10 is a bottom view of the sole on the left foot side of the sock S2 according to the second embodiment of the present invention. FIG. 11 shows the directions and magnitudes of actions of the band-shaped stimulators 1, 3 and 4 to contract specific leg muscles by somatic reflex when the sock S2 is worn. As shown in FIG. 10, the sock S2 has a third strip-shaped stimulating body 3 instead of the first strip-shaped stimulating body 1, which abuts on the MP joints of the first and second toes. , the same configuration as the sock S1 according to the first embodiment.

The third zonal stimulating body 3 stimulates the skin under the MP joint of the first and second toes of the medial tarsal globules to induce a somatic reflex in the medial plantar nerve N2, and the short thumb under control. Involuntarily contract the toe flexor M9 and thumb abductor M10. As a result, the action of bending the first and second toes in directions m1 and m2 in FIG. 11 works. In addition, since the sock S2 has a substantially V-shaped fourth band-shaped stimulator similar to the sock S1, the contraction of the flexor brevis muscle M4 increases the action of m1 and m2, and further strengthens the plantar fascia itself. The action of pulling the calcaneus in the direction of m7 is also added by the contraction. Therefore, on the inner side of the foot (side of the first toe), a relatively strong drawing effect is generated from both the front and rear directions, promoting the formation of the arch structure A1 in the vertical direction.

On the other hand, on the outside of the foot (5th toe side), the somatic reflex that flexes the 3rd to 5th toes is weak, and the calcaneus due to contraction of the flexor digitorum brevis muscle M4 by the fourth strip-shaped stimulating body 4 and the plantar fascia. Since only the action of drawing to m7 works, the effect of properly shaping the arch structure A2 is produced, but the drawing effect in the front-rear direction is relatively weak. As a result, the pulling effect on the inside of the foot becomes dominant, and the entire foot produces an effect of externally rotating the heel (inwardly rotating the toe).

In addition, the second strip-shaped stimulating body 2 stimulates the skin of the medial tarsal globulus along between the second and third metatarsal bones to It is the same as the sock S1 in that it causes a somatic reflex that unconsciously contracts the sock and promotes the formation of a lateral arch structure A3.

Although the embodiments of the present invention have been described above with reference to the drawings, the present invention is not necessarily limited to the above-described configurations, and may be modified as appropriate within the scope of achieving the objects and effects of the present invention. As long as they can be modified and are within the scope of the technical idea of the present invention, they belong to the technical scope of the present invention.

For example, it is possible to implement a sock having all of the first to fourth band-shaped stimulating bodies on the inner surface of the sole. Heel internal and external rotation is neutral.

The sock according to the present invention can be constructed simply by adding a band-shaped stimulating body to the inner surface of the sole fabric without providing a special structure to the sock body itself. Just by wearing them as usual and leading a daily life, the arch structure of the soles of the feet is unconsciously optimized. As a result, the original function of the arch of the foot is exhibited, and the effect of improving and preventing diseases such as flat feet, floating toes, and plantar fasciitis can be expected. In addition, since it does not forcibly optimize the arch structure of the sole by means of a mechanical configuration, there is no adverse effect on the balance and posture of the body.

In addition, by selectively providing the first and second band-shaped stimulating bodies, it is possible to induce the tendency of the heel to internally rotate and externally rotate when standing or walking. By choosing and wearing socks according to your needs, you can expect to optimize your physical performance.

Schematic showing the arch structure of the sole Anatomy of foot bones Layout of the muscles involved in the arch structure of the sole (Part 1) Layout of the muscles involved in the arch structure of the sole (Part 2) Layout of the muscles involved in the arch structure of the sole (Part 3) Layout of the muscles involved in the arch structure of the sole (Part 4) Summary table of the muscles involved in the arch structure of the foot The configuration diagram of the sock S1 according to the first embodiment. The figure which shows the effect|action of sock S1 which concerns on 1st Embodiment. A configuration diagram of a sock S2 according to the second embodiment. A diagram showing the action of the sock S2 according to the second embodiment.

S1 socks (first embodiment)
S2 socks (second embodiment)
1 first strip-shaped stimulating body 2 second strip-shaped stimulating body 3 third strip-shaped stimulating body 4a fourth strip-shaped stimulating body (inner side)
4a Fourth strip-shaped stimulator (outer)
m1-m7 direction of muscle contraction

Claims (3)

a first strip-shaped stimulating body consisting of a thin strip-shaped elastic body that contacts only the metatarsophalangeal joints of the third to fifth toes on either the inner or outer surface of the sole; In the area below the metatarsophalangeal joint between the 2nd and 3rd toes from the interphalangeal joint to the medial tarsal globulus along between the second and third metatarsals and a second strip-shaped stimulating body made of a thin strip-shaped elastic body that only abuts against the sock. a third band-shaped stimulating body consisting of a thin band-shaped elastic body that contacts only the metatarsophalangeal joints of the first and second toes on either the inner or outer surface of the sole; In the area below the metatarsophalangeal joint between the 2nd and 3rd toes from the interphalangeal joint to the medial tarsal globulus along between the second and third metatarsals and a second strip-shaped stimulating body made of a thin strip-shaped elastic body that only abuts against the sock. On either the inner surface or the outer surface of the sole portion of the sock, there is further provided a fourth fourth elastic body consisting of a pair of thin belt-like elastic bodies separated in a substantially V-shape and abutting on the front part of the calcaneus of the sole. 3. The sock according to claim 1, further comprising a band-shaped stimulating body.

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