JP7082402B2 - Foot attachment and training method using it - Google Patents

Description

The present invention relates to a sole-mounted device provided with a stimulating portion that stimulates the sole of the wearer's foot while walking or running. The present invention also relates to a training method for learning a correct walking or running method using such a foot attachment.

Research on human gait has been conducted for a long time. A person's gait is gradually disturbed due to deterioration of musculoskeletal organs such as muscles, bones, joints, nerves, cartilage, and intervertebral discs due to aging and a decrease in motor stimulation. The gait of the elderly is sometimes described as "movement when walking on slippery roads" or "movement when groping in the darkness". In addition, men and women of all ages generally have little experience in being taught the correct gait. Therefore, few people understand and practice what the correct gait is, so it can be said that the gait of a person is easily disturbed. When a person's gait is disturbed, not only the appearance but also the physical aspect is naturally affected. Since human gait is a clue in diagnosing a disease and determining the cause, these evaluations are also performed clinically.

In recent years, the number of elderly people who have impaired locomotor function such as "standing" and "walking" due to knee pain and lower back pain accompanied by bone deformities and fall fractures due to aging causes a rapid increase in the number of elderly people. This condition is called locomotive syndrome (locomotive syndrome), and the risk of requiring long-term care increases. Therefore, efforts to prevent, prevent, and improve this are receiving a great deal of attention. Osteoarthritis of the knee is known as a typical example of locomotive syndrome. It is known that the knee joint opens outward due to varus of the knee joint as a characteristic of walking in patients with knee osteoarthritis. As one of the treatment methods for knee osteoarthritis, a method of suppressing improper movement of the knee joint in the affected area by using orthodontic devices such as orthotics, supporters, and sole plates (insoles) is adopted. However, it was inconvenient to wear such an orthodontic appliance and lead a daily life because the movement was restricted. In addition, since illegal movements vary depending on the individual state, custom-made equipment corresponding to each movement is required to effectively suppress the illegal movements. Further, when the movement of the affected part is corrected by using such a correction device, a burden is applied to a part other than the affected part, and a problem (compensation) may occur in the originally normal part. Since it is important to improve gait to prevent, prevent, and improve locomotive syndrome in order to extend healthy life expectancy, its realization is strongly required. However, as described above, the orthodontic appliance has a large effect on the body and daily life, and also has a small effect of improving gait. Moreover, it was not suitable for preventive use.

In addition, injuries and chronic disorders of children and adults (pain in the knees and lower back without bone deformities, stiff shoulders, sprains, etc.), sports injuries and trauma from children to adults, foot problems (valgus valgus, octopus, etc.) It is considered that improvement of walking and running (= walking and running correctly) is extremely effective for prevention and improvement of corns, curly claws, O-legs, etc.) and easiness of tiredness during walking.

For these reasons, there is a demand for equipment that can improve "walking" and "running", has less burden on the body, and can be used without any inconvenience in daily life.

In Patent Document 1, a gait correction tool that comes into contact with the sole of the foot, in which a raised portion is formed on a line connecting the heel and the ball of the ball and on the line connecting the ball of the ball and the ball of the ball. A gait correction tool is described, and an example in which the heel portion and the ball portion of the hallux are connected by a straight line is described in the embodiment. It is described that the weight can be transferred from the heel to the ball of the toe by being aware of the raised portion that comes into contact with the sole of the foot when walking. However, the effect of the gait correction tool on improving gait was still insufficient.

By the way, the center of pressure (COP) locus is known as one of the indexes for analyzing "how to walk" and "how to run". The foot pressure center locus indicates the locus (movement) of the foot pressure center, which is the center of the pressure of the sole of the foot from the time when the foot touches the ground to the time when the foot comes off the ground during walking or running. It is known that the normal (preferred) center of foot pressure trajectory begins at the heel, travels slightly laterally to the forefoot, gradually inwardly, and finally to the toes. ing. However, there have been no reports on improving "walking" and "running" by directly using the foot pressure center trajectory.

Japanese Unexamined Patent Publication No. 2008-125693

The present invention has been made to solve the above-mentioned problems, and it is possible to improve "how to walk" and "how to run", it is less burdensome to the body, and it can be used comfortably in daily life. The purpose is to provide the ingredients.

The above-mentioned task is a foot sole wearing tool provided with a stimulating portion that stimulates the sole of the wearer during walking or running in order to guide to a preferable center locus of foot pressure, and is along the preferred center locus of foot pressure. The stimulating portion is provided, and the stimulating portion is arranged at a position corresponding to a curve connecting the cubic bone or the outside thereof, wrapping around the outside of the foot, passing through the first proximal phalanx, and connecting to the first distal phalanx. It is solved by providing a sole fitting that has been used.

At this time, it is preferable that the stimulating portion is a protrusion or is formed by an elastic body. In the sole attachment, it is preferable that the stimulus transmitted to the sole of the foot from the stimulating portion arranged in the portion in contact with the back surface of the toe is stronger than the stimulus transmitted to the sole of the foot from the stimulating portion arranged in the other portion. At this time, a cushioning material is provided along the stimulating portion arranged in a portion other than the portion in contact with the back surface of the toe, and the portion in which the stimulating portion is a protrusion and is in contact with the back surface of the toe. It is more preferable that the protrusions arranged in the above are higher than the protrusions arranged in other parts. It is preferable that the sole attachment has a finger bag having an independent toe.

Socks, insoles, footwear, socks, stockings, and tights are preferred embodiments of the sole fitting.

The above-mentioned problem is also solved by providing a training method for learning a correct walking or running method by wearing the sole attachment and walking or running while being aware of the stimulus from the stimulating portion. ..

By walking or running with the foot sole wearing tool of the present invention attached, the person is guided to a preferable foot pressure center locus, so that "how to walk" and "how to run" are improved. In addition, the foot sole wearing tool has less burden on the body and can be used without any inconvenience in daily life. By improving "how to walk" and "how to run" by using the sole fitting of the present invention, in particular, locomotive syndrome such as degenerative diseases of the knee and hip joints, injuries and chronic injuries to children and adults. Disorders (knee and lower back pain without bone deformation, stiff shoulders, sprains, etc.), sports injuries and trauma from children to adults, foot problems (valgus valgus, octopus, corns, curly claws, O-legs, etc.) and walking Prevention, prevention of progress, and improvement of time fatigue are achieved.

It is a schematic diagram which looked at the foot skeleton (left foot) from the sole side. It is a schematic diagram which shows the sole of the sole attachment (sock) which the stimulating part was formed on the sole. It is a schematic diagram which shows the sole of the sole attachment (sock) which provided the cushioning material along the stimulation part arranged in the part other than the part which contacts the back surface of a toe. It is a schematic diagram which shows the sole of the foot attachment (sock) which the protrusion arranged in the part which contacts the back surface of a toe is higher than the protrusion arranged in other parts. It is a schematic diagram of the sock attached to the foot seen from the sole side in Example 1 and Comparative Example 2. It is a schematic diagram which shows the foot pressure center locus used as a reference when arranging the stimulation part in Example 1 and Comparative Example 2. It is a figure which shows the distribution (change) of the sole pressure at the time of walking in Example 1 and Comparative Examples 1 and 2. It is a figure which compared the foot pressure center locus length of Example 1 or the comparative example 2 with the foot pressure center locus length of the comparative example 1. FIG. It is a figure which shows the time-series change of the hip joint angle at the time of walking in Example 1 and Comparative Examples 1 and 2. It is a schematic diagram of the sock attached to the foot seen from the sole side in Examples 2 and 3 and Comparative Example 4. It is a figure which shows the distribution (change) of the sole pressure at the time of walking in Examples 2 and 3 and Comparative Examples 3 and 4. It is a figure which compared the foot pressure center locus length of Example 2, Example 3 or the comparative example 4 with the foot pressure center locus length of Comparative Example 3. It is a figure which shows the time-series change of the hip joint angle at the time of walking in Examples 2 and 3 and Comparative Examples 3 and 4.

The sole fitting of the present invention is a sole fitting provided with a stimulating portion that stimulates the sole of the wearer during walking or running in order to guide the foot to a preferable center locus of foot pressure, and the preferred foot is described above. The stimulating portion is provided along the pressure center locus, and the stimulating portion forms a curve connecting the cubic bone or the outside thereof, wrapping around the outside of the foot, passing through the first proximal phalanx, and connecting to the first distal phalanx. It is located at the corresponding position.

The sole-mounted tool of the present invention is provided with a stimulating portion along a preferable center locus of foot pressure. The foot pressure center locus indicates the locus (movement) of the foot pressure center, which is the center of the pressure of the sole of the foot from the time when the foot touches the ground to the time when the foot comes off the ground during walking or running. Further, the preferable center foot pressure locus means a normal foot pressure center locus of a person. When the sole attachment is attached to the foot, the stimulating portion needs to be arranged along a preferable center locus of foot pressure on the sole. When the stimulating portion is stepped on the foot during walking or running, the sole of the foot is stimulated along a preferable center locus of foot pressure. This surprisingly brings the wearer's center of foot pressure locus closer to the preferred locus. At this time, by walking or running so as to step on the stimulating portion along the preferable center locus of foot pressure, the weight can be put on the toes, and the wearer is informed that the foot pressure center locus is approaching. It is preferable that the wearer walks or runs while being aware of the stimulating portion.

FIG. 1 is a schematic view of the foot skeleton (left foot) as viewed from the sole side. With reference to FIG. 1, the position of the stimulating portion when the sole attachment is attached to the foot will be specifically described. The curve 1 corresponds to a preferable center locus of foot pressure, and when the preferred center locus of foot pressure is viewed from the sole side, the locus coincides with the curve 1. Curve 1 is from the outside of the calcaneus 2 (in the case of the left foot, the left outside when viewed from the wearer), via the cuboid bone 3 or the outside thereof, around the outside of the arch 4, and via the first proximal phalanx 5. , It connects to the tip of the first distal phalanx 6. Then, when the sole attachment is attached to the foot, the stimulating portion has an S-shape (or a symmetrical shape thereof) connecting at least the cuboid bone 3 or the outside thereof to the first distal phalanx in the curve 1. ) Needs to be placed at the position corresponding to the part. At this time, the stimulating portions may be arranged continuously or intermittently, but the former is preferable. When the stimulating portions are arranged intermittently, the distance between the stimulating portions is preferably 20 mm or less, and more preferably 5 mm or less. In order for the sole of the foot to be stimulated by the stimulating portion during walking or running, the stimulating portion needs to be arranged at a position corresponding to the portion of the sole that comes into contact with the ground during walking or running.

The curve 1 starts from the outside of the calcaneus 2 and reaches the cuboid bone 3 or the outside thereof. At this time, the curve 1 may reach the cuboid bone 3 or the outside thereof after passing through the calcaneus 2, or the cuboid bone 3 or the outside thereof directly from the outside of the calcaneus 2 without passing through the calcaneus 2. May be reached. The outside of the calcaneus 2 means a portion of the calcaneus 2 outside the center of gravity 7 (small toe side) when the foot skeleton is viewed in a plan view from the sole side of the foot. It is preferable that the curve 1 passes through the outside (small toe side) of the center of gravity 7 of the calcaneus 2. At this time, when the size of the foot is 25 cm, the shortest distance between the curve 1 and the center of gravity 7 of the calcaneus 2 is preferably 5 mm or more, and more preferably 1 cm or more. Since this distance is proportional to the size of the foot, it is calculated in proportion to the size of the foot.

It is preferable that the curve 1 passes through the cuboid bone 3 from the viewpoint of further improving the foot pressure center locus. At this time, it is preferable that the shortest distance between the center of gravity 8 of the cuboid bone 3 and the curve 1 (when the foot size is 25 cm) is 1.5 cm or less when the foot skeleton is viewed in a plan view from the sole side of the foot, preferably 1 cm or less. Is more preferable. Since the shortest distance between the center of gravity 8 and the curve 1 is proportional to the size of the foot, it is calculated in proportion to the size of the foot. It is preferable that the curve 1 does not pass through the fifth metatarsal bone 9 from the viewpoint of further improving the foot pressure center locus. The curve 1 goes around the outside of the arch 4 via the cuboid bone 3 or the outside thereof and reaches the first proximal phalanx 5. The arch 4 means the part on the inside of the sole of the foot (toe side) that does not touch the ground when walking or running. In order to improve the foot pressure center locus, it is important that the curve 1 does not pass through the arch 4 but goes around the outside to reach the first proximal phalanx 5. In order for the curve 1 to reach the first proximal phalanx 5 without passing through the footstep 4, the curve 1 passes through the third metatarsal bone 10 and the second metatarsal bone 11 in this order to reach the first proximal phalanx. It is preferable to reach the bone 5. Also, for the same reason, it is preferable that the curve 1 does not pass through the scaphoid bone 12 and the medial cuneiform bone 13. Curve 1 is an S-shaped (or symmetrical shape) line that passes through the first proximal phalanx 5 and the first distal phalanx 6 in this order and ends at the tip of the first distal phalanx 6.

The stimulating portion needs to be arranged at a position corresponding to a portion of the curve 1 connecting at least the cuboid bone 3 or the outside thereof to the first distal phalanx 6. From the viewpoint of further improving the foot pressure center locus, it is preferable that the stimulation portion extends to a position corresponding to the tip of the first distal phalanx 6. From the same viewpoint, the stimulating portion extends to a position corresponding to the cuboid bone 3 or a portion on the heel side of the outside thereof, and the stimulating portion is arranged on the entire cuboid bone 3 or a portion corresponding to the outside thereof. It is preferable that it is. At this time, the stimulating portion may extend to the portion corresponding to the outside of the calcaneus 2, but the position corresponding to the portion on the posterior side (opposite side in the traveling direction) of the center of gravity 7 of the calcaneus 2. It is preferable that it is not extended to. If the stimulating portion is arranged at a position corresponding to the heel contact portion of the heel, the wearer may feel pain when the heel lands when walking or running, and the stimulating portion may not be arranged at such a position. preferable. From the viewpoint of further improving the foot pressure center locus, it is preferable that the stimulation portion is not arranged at a position other than the position corresponding to the curve 1, that is, the position along the preferable foot pressure center locus.

FIG. 2 is a schematic view showing the sole 14 of a sock in which a stimulating portion 15 is formed on the sole 14, which is an example of a specific embodiment of the sole wearing tool of the present invention. The sole attachment of the present invention will be further described with reference to FIG. On the front side (the side that does not come into contact with the foot) of the sole 14 of the sock shown in FIG. 2, the stimulating portion 15 is arranged along a preferable center locus of foot pressure. When the stimulating portion 15 is stepped on by the foot during walking or running, the sole of the foot is stimulated along a preferable center locus of foot pressure. As described above, if it is possible to stimulate the sole of the foot along a preferable center locus of foot pressure, the shape of the stimulating portion 15 is not particularly limited, but the burden on the body is small and the foot can be used without any inconvenience in daily life. From the point of view, it is preferable that the stimulating portion 15 is a protrusion. Like the socks shown in FIG. 2, the protrusions may be arranged on the front side of the sole 14, and the protrusions may protrude in the direction opposite to the foot, or the back side of the sole 14 (the side in contact with the foot). ) May have a protrusion, and the protrusion may protrude toward the foot. Further, as in the socks shown in FIG. 2, a member such as a knitted fabric 16 may be arranged between the stimulating portion 15 and the sole of the foot, or the stimulating portion 15 is arranged at a position where the stimulating portion 15 comes into direct contact with the sole of the foot. May be.

The height of the stimulating portion 15 (in the direction perpendicular to the sole of the foot, when the size of the foot is 25 cm) is not particularly limited as long as the effect of the present invention is not impaired, but 0.1 to 5 mm is preferable. If the height of the stimulating portion 15 is less than 0.1 mm, the stimulus transmitted to the sole of the foot may be too weak to sufficiently improve the center locus of foot pressure. The height of the stimulating portion 15 is more preferably 0.3 mm or more, further preferably 0.5 mm or more. On the other hand, when the height of the stimulating portion 15 exceeds 5 mm, the stimulus transmitted to the sole of the foot is too strong, and the wearer may feel the stimulus as pain. The height of the stimulating portion 15 is more preferably 3 mm or less. Since this height is proportional to the size of the foot, it is calculated in proportion to the size of the foot.

The width of the stimulating portion 15 (direction parallel to the sole of the foot and perpendicular to the preferred center locus of foot pressure) is not particularly limited as long as the effect of the present invention is not impaired, but is 0.1. ~ 20 mm is preferable. If the width of the stimulating portion 15 is less than 0.1 mm, the stimulus transmitted to the sole of the foot may be too weak to sufficiently improve the center locus of foot pressure. The width of the stimulating portion 15 is more preferably 0.3 mm or more, further preferably 0.5 mm or more. On the other hand, when the width of the stimulating portion 15 exceeds 20 mm, the foot pressure center locus may not be sufficiently improved because the portion distant from the preferable foot pressure center locus is stimulated or the sole is not stimulated. .. The width of the stimulating portion 15 is more preferably 10 mm or less, further preferably 5 mm or less.

FIG. 3 is a schematic view showing the sole 14 of the sole attachment (sock) provided with the cushioning material 19 along the stimulating portion 15 arranged in the portion other than the portion in contact with the back surface of the toe. In order to improve the foot pressure center locus, it is necessary to stimulate the back side of the toe during walking or running, but the pressure when the toe steps on the stimulating portion is other than the toe. The pressure is lower than the pressure when the part steps on the stimulating part. Therefore, if the same stimulating part is placed on the part in contact with the back surface of the toe and the other part, the stimulus transmitted to the back side of the toe becomes too weak and the effect of improving the center locus of foot pressure becomes insufficient. The stimulus transmitted to the part other than the back side of the toe may become too strong and may be felt as pain. For this reason, when each part of the sole of the foot steps on the stimulating portion with the same pressure in the sole mounting tool, the stimulus transmitted from the stimulating portion arranged in the portion in contact with the back surface of the toe to the sole of the foot. Is preferably stronger than the stimulus transmitted to the sole of the foot from the stimulating portion arranged in another portion. As a method of adjusting the stimulus transmitted to the sole of the foot in this way, there is a method of providing the cushioning material 19 along the stimulating portion 15 arranged in a portion other than the portion in contact with the back surface of the toe in the sole mounting tool. Can be mentioned. By providing the cushioning material 19 at a position corresponding to the portion of the sole other than the back side of the toe, the irritation transmitted to the portion other than the back side of the toe is reduced and pain can be prevented. The shape and position of the cushioning material 19 are not particularly limited as long as the irritation transmitted to the sole of the foot can be reduced. When the stimulating portion 15 is viewed from the above, a method of arranging a flat string-shaped cushioning material 19 on both sides of the stimulating portion 15 and the like can be mentioned. The cushioning material 19 is preferably an elastic body, and more preferably the elastic body is a fiber aggregate, a rubber molded product, or a resin molded product.

FIG. 4 is a schematic view showing the sole of the sole of the foot (sock) in which the protrusion 20 arranged at the portion in contact with the back surface of the toe is higher than the protrusion 21 arranged at the other portion. Even with such a sole attachment, it is possible to adjust the stimulus transmitted to the sole of the foot and prevent pain in parts other than the sole of the toe. In the foot sole attachment shown in FIG. 4, the protrusions 20 and 21 are formed of a rubber cord, and the outer diameter of the rubber cord (projection 20) arranged at the portion in contact with the back surface of the toe is set to another portion. The heights of the protrusions 20 and 21 are adjusted by making them larger than the rubber string (protrusion 21) to be arranged.

The material that forms the stimulating portion 15 is not particularly limited as long as it is perceived by the wearer when the sole of the foot touches the ground, but it is preferable that the stimulating portion 15 is formed of an elastic body, and the elastic body is made of rubber. More preferably, it is a molded product, a resin molded product, or a fiber aggregate.

The method of forming the stimulating portion 15 on the sole 14 of the sole attachment is not particularly limited, and a method suitable for the type of the sole attachment may be adopted. For example, when the sole attachment is a sock, a string-shaped member (rubber string or the like) may be sewn on the sole 14 of the sock so as to follow a preferable foot pressure center trajectory, or an adhesive may be used. There is a method of fixing by. Further, there is also a method of applying latex or molten resin to the sole 14 of the sole mounting tool so as to follow a preferable center locus of foot pressure. According to this method, by forming a linear stimulating portion 15 on the sole 14 of the sole wearing tool, the stimulating portion 15 can be continuously arranged, or the stimulating portion 15 having a broken line shape or a dot shape can be provided. By forming, the stimulating portion 15 can be arranged intermittently. Further, when the cushioning material 19 is formed on the sole 14 of the sole mounting tool, the same method as that of the stimulating portion 15 can be adopted.

It is preferable that the sole attachment has a finger bag 18 having an independent toe portion 17. As a result, the position of the sole attachment is prevented from being displaced when the foot is attached.

It is preferable that the sole attachment is socks, insoles, footwear, socks, stockings or tights.

A preferred embodiment of the sole fitting is a training method in which the sole fitting is worn and a training method is acquired by walking or running while being aware of the stimulus from the stimulating portion to acquire a correct walking or running method. .. At this time, by walking or running so as to step on the stimulating portion along the preferable center locus of foot pressure, the weight can be put on the toes, and the wearer is informed that the foot pressure center locus is approaching. It is preferable that the wearer walks or runs while being aware of the stimulating portion.

By walking or running with the sole-attached tool attached, the person is guided to a preferable center locus of foot pressure, so that "how to walk" and "how to run" are improved. In addition, the foot sole wearing tool has less burden on the body and can be used without any inconvenience in daily life. By improving "walking" and "running" using the sole fitting of the present invention, locomotive syndrome such as osteoarthritis of joints, sports injuries, hallux valgus, low back pain, stiff shoulders, etc. can be prevented and progressed. , Improvements are achieved.

Hereinafter, the present invention will be described in more detail with reference to examples.

Example 1
By sewing a round rubber cord (2.5 mm in diameter) used for handicrafts and hairdressing on the front side (the side that does not come into contact with the foot) of the sole of a commercially available sock, a sock with a stimulating part on the sole was produced. .. FIG. 5 is a schematic view of the sock attached to the foot as seen from the sole side of the foot. FIG. 6 shows a typical preferable center locus of foot pressure used as a reference when arranging the stimulating portion.

The distribution (change) of the sole pressure during walking, the foot pressure center locus length, and the hip joint angle were measured by a monitor (male 50 years old) wearing the socks. Before the measurement, the sock is provided with a stimulating portion along a preferable center locus of foot pressure, and by walking or running so as to step on the stimulating portion, the weight can be put on the toes, which is a preferable foot. I told the monitor that I was approaching the center of pressure trajectory.

When the socks are worn, the stimulating part is from the outside of the calcaneus 2, via the cuboid bone 3, around the outside of the arch 4, via the first proximal phalanx 5, and at the tip of the first distal phalanx 6. It was arranged at the position corresponding to the curve 1 (curve 1 shown in FIG. 1) connecting the above. A sole pressure measurement system was used to measure the sole pressure and the center trajectory length of the foot pressure, and a position sensor was fixed to the hip joint for measurement. FIG. 7 shows the measurement results of the distribution (change) of the sole pressure during walking. FIG. 8 shows the measurement result of the foot pressure center locus length. FIG. 9 shows the measurement results of the time-series changes in the hip joint angle.

Comparative Example 1
The distribution (change) of the sole pressure, the foot pressure center locus length, and the hip joint angle were measured in the same manner as in Example 1 except that the monitor wore socks without a stimulating portion and walked. The results are shown in FIGS. 7 to 9.

Comparative Example 2
Socks were produced in the same manner as in Example 1 except that the arrangement of the stimulating portion was different. FIG. 5 shows a schematic diagram of the sock produced, and FIG. 6 shows a foot pressure center locus used as a reference when arranging the stimulating portion. The distribution (change) of the sole pressure, the foot pressure center locus length, and the hip joint angle were measured in the same manner as in Example 1 except that the monitor wore the socks and walked. When the socks of Comparative Example 2 were worn, the stimulating portion was not arranged at the position corresponding to the first proximal phalanx and the position corresponding to the first distal phalanx. The measurement results are shown in FIGS. 7 to 9.

Example 2
A sock having a stimulating portion on the sole of the foot was produced in the same manner as in Example 1 except that a commercially available sock having an independent finger bag on the toe portion was used. FIG. 10 is a schematic view of the sock attached to the foot as seen from the sole side of the foot. The distribution (change) of the sole pressure, the foot pressure center locus length, and the hip joint angle were measured in the same manner as in Example 1 except that the monitor wore the socks and walked. When the socks are worn, the stimulating part is from the outside of the calcaneus 2, via the cuboid bone 3, around the outside of the arch 4, via the first proximal phalanx 5, and at the tip of the first distal phalanx 6. It was arranged at the position corresponding to the curve 1 (curve 1 shown in FIG. 1) connecting the above. The measurement results are shown in FIGS. 11 to 13.

Example 3
The rubber cord was not placed in the part corresponding to the heel part (the part that comes into contact with the ground when the heel touches the ground), and after sewing the rubber cord, the stimulating part is on the heel side of the part corresponding to the toe ball. Socks were produced in the same manner as in Example 2 except that a flat rubber (pants rubber) having a width of 1.5 cm was sewn as a cushioning material 19 so as to cover the rubber cord in order to reduce the irritation from the heel. FIG. 10 is a schematic view of the sock attached to the foot as seen from the sole side of the foot. The distribution (change) of the sole pressure, the foot pressure center locus length, and the hip joint angle were measured in the same manner as in Example 1 except that the monitor wore the socks and walked. When the socks are worn, the stimulator is located at a position corresponding to the curve connecting the cuboid bone 3, the outer side of the arch 4, the first proximal phalanx 5, and the tip of the first distal phalanx 6. (The stimulating part is placed in the entire part corresponding to the cuboid bone 3). The measurement results are shown in FIGS. 11 to 13. By removing the stimulating part of the part corresponding to the heel part and arranging the cushioning material 19 on the part on the heel side of the part corresponding to the ball of the toe, a soft stimulus is felt on the sole of the foot without discomfort. I was able to wear it for a long time.

Comparative Example 3
The distribution (change) of the sole pressure, the foot pressure center locus length, and the hip joint angle were measured in the same manner as in Example 2 except that the monitor wore socks without a stimulating portion and walked. The results are shown in FIGS. 11 to 13.

Comparative Example 4
Socks were produced in the same manner as in Example 2 except that the stimulating portion was not arranged at the position corresponding to the first proximal phalanx and the position corresponding to the first distal phalanx. FIG. 10 is a schematic view of the sock attached to the foot as seen from the sole side of the foot. The distribution (change) of the sole pressure, the foot pressure center locus length, and the hip joint angle were measured in the same manner as in Example 1 except that the monitor wore the socks and walked. When the socks were worn, the stimulator was not located at the position corresponding to the first proximal phalanx and the position corresponding to the first distal phalanx. The measurement results are shown in FIGS. 11 to 13.

The distribution (change) of the sole pressure and the length of the foot pressure center locus (Examples 1 to 3) when walking with the socks provided with the stimulating portion along the preferable foot pressure center locus are provided by the stimulating portion. Compared with the foot pressure center locus (Comparative Examples 1 and 3) when walking with socks that were not used, it was confirmed that the foot pressure center locus was improved because it extended in the direction of the toes (Comparative Examples 1 and 3). Figures 7, 8, 11 and 12). On the other hand, when the stimulating portion is not provided at the position corresponding to the first proximal phalanx and the position corresponding to the first distal phalanx (Comparative Examples 2 and 4), such improvement of the foot pressure center trajectory can be seen. It was not possible (Figs. 7, 8, 11, 12). In addition, when walking with socks provided with a stimulating portion along a preferable center locus of foot pressure (Examples 1 to 3), the hip joint angle was determined by wearing socks without a stimulating portion. Compared with the case (Comparative Examples 1 and 3) and the case where the stimulating portion is not provided at the position corresponding to the first proximal phalanx and the position corresponding to the first distal phalanx (Comparative Examples 2 and 4), the spread is widened. , The range of motion of the hip joint during walking increased (Figs. 9 and 13). It is considered that this is a result of the firm kicking motion being performed by inducing a preferable center locus of foot pressure to the toes and extending the locus. Further, in Example 3 in which a cushioning material for reducing irritation is placed in a portion other than the toes, the distribution of sole pressure during walking, the extension of the foot pressure center locus length, and the range of motion of the hip joint are the same as in Example 2. It was confirmed that the foot pressure center trajectory was improved (Figs. 11, 12, 13). Further, compared with Example 2, in Example 3, the right kick pressure max and the foot pressure of the right foot at the time of landing on the left foot are not strong (not blackened). That is, it was observed that the foot pressure was soft (weak) and the stimulus was alleviated (FIG. 11). Therefore, the burden on the body is small and it can be used without any inconvenience in daily life. Therefore, from the viewpoint of learning the correct "walking" or "running" with one's own body, it can be worn for a long time or during daily and sports activities, so that it is possible to further lead to a preferable center locus of foot pressure. ..

1 Curve 2 Ankle bone 3 Cubic bone 4 Tramway 5 1st base segment bone 6 1st terminal segment bone 7, 8 Center of gravity 9 5th metatarsal bone 10 3rd metatarsal bone 11 2nd metatarsal bone 12 Boat-shaped bone 13 Medial wedge shape Bone 14 Sole 15 Stimulation part 16 Knitted fabric 17 Axillary part 18 Finger bag 19 Buffer material 20, 21 Protrusions

Claims (8)

A sole-wearing tool provided with a stimulating portion that stimulates the sole of the wearer during walking or running in order to guide the user to a preferable center locus of foot pressure.
The stimulation portion is provided along the preferred foot pressure center locus, and the stimulation portion is provided.
The stimulating part is arranged at a position corresponding to a curve connecting the cuboid bone or the outside thereof, wrapping around the outside of the arch, passing through the first proximal phalanx, and connecting to the first distal phalanx .
A sole attachment with a finger bag with an independent toe . The foot sole attachment according to claim 1, wherein the stimulating portion is a protrusion. The sole attachment according to claim 1 or 2, wherein the stimulating portion is formed of an elastic body. 6. Sole attachment. The sole attachment according to claim 4, wherein a cushioning material is provided along the stimulating portion arranged in a portion other than the portion in contact with the back surface of the toe. The sole attachment according to claim 4, wherein the stimulating portion is a protrusion, and the protrusion arranged at the portion in contact with the back surface of the toe is higher than the protrusion arranged at the other portion. The sole attachment according to any one of claims 1 to 6, which is socks, insoles, footwear, socks, stockings or tights. A training method for learning a correct walking or running method by wearing the foot sole attachment according to any one of claims 1 to 7 and walking or running while being aware of the stimulus from the stimulating portion.

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