JP6721995B2 - Method for training strength and footwear used therefor - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method of stimulating a front transverse arch to correct the entire outer longitudinal arch and the inner longitudinal arch, and training muscle strength, and footwear used therefor.

The human sole has an arch structure of a front lateral arch, an outer longitudinal arch, and an inner longitudinal arch. In FIG. 3A, a front horizontal arch FA, an outer vertical arch OA, and an inner vertical arch IN are shown. When the arch structure collapses due to lack of exercise, etc., the impact on the foot cannot be absorbed sufficiently, which makes it easy to get tired.Therefore, in order to eliminate it, the surface that the foot touches has an arched shape. Footwear and insoles have been proposed (Patent Document 1).
Further, in order to extend the Achilles tendon during walking, improve health, rehabilitate, etc., footwear in which the toe side of the footwear sole is higher than the heel side has been proposed (Patent Document 2).
Further, there has been proposed footwear in which the toe side is higher than the heel side, and the amount of extension of the Achilles tendon can be freely changed (Patent Document 3).

JP, 2005-92896, A JP-A-9-140408 Utility model registration No. 3063147

However, in order to eliminate the collapse of the arch structure, it is necessary to train the muscles by exercise, but just walking with conventional footwear makes it difficult to walk on the sandy beach and efficiently strengthen the muscle strength obtained in the uphill environment on mountain roads. Not what you get.
It is an object of the present invention to provide a training method for strengthening anti-gravity muscles that can embody a sandy beach or an uphill while taking a walk on a flat road, and footwear used therefor.

In order to achieve the above object, a method of stimulating the front lateral arch of the foot by walking while wearing footwear on the foot to train muscle strength,
When the foot touches the ground, the sole of the footwear is supported in an inclined state with the toe side higher than the heel side,
At least the part of the sole on which the thumb rides is made of a flexible material or an elastic material to separate the thumb of the sole from other fingers, or to sink the area of the thumb of the sole independently of the area of the other fingers. There was configured to facilitate, legs independently thumb when kicking the ground 4mm or more from the toes, to characterized in that moving the front transverse arch of the foot forces by causing incorporated viewed precipitation downward It

According to the present invention, the sole having a high inclination on the toe side allows the posture to be extended by migrating the center of gravity without arching and stimulating the abdominal and back muscles. The thumb separates from the other fingers and the thumb sinks to strengthen the anterior lateral arch. The inner and outer vertical arches can be strengthened by the function of the sole. The feeling of unevenness along the road surface shape can be received by the sole of the foot as if barefoot, and the anterior lateral arch of the sole can be flexibly stimulated and activated.

FIG. 3 is a plan view of the footwear according to the first embodiment. FIG. 3 is a side view of the footwear according to the first embodiment. FIG. 6 is a diagram showing the operation of the first embodiment. FIG. 6 is a cross-sectional view at the base position XX where the toes of the footwear according to the first embodiment are bifurcated, and is an explanatory diagram showing a change in a state in which the footwear according to the present embodiment is worn and exercised. It is a figure which shows Example 2. It is a figure which shows Example 3.

Hereinafter, the first embodiment will be described with reference to FIGS.
1 is a plan view of footwear 1 according to the present embodiment, and FIG. 2 is a side view of footwear according to the present embodiment. The footwear 1 is composed of a main body 2 and a sole 3, the main body 2 is made of a rubber material, and the toe part forms a tabi-shaped part divided into a forked portion 4 for inserting a thumb and a portion 5 for inserting another finger. .. The main body 2 surrounds the instep, the side surface, and the back side of the heel, has flexibility, presses and fixes the instep of the foot against the sole 3, and prevents the back of the heel from slipping. Spaces are provided in the portions 4 and 5 of the main body 2 so that the movement of the fingers can be slightly permitted.

The sole 3 is made of foamed rubber which is a flexible material or an elastic material, and the thickness of the sole 3 is inclined so as to decrease from the toe side to the heel side. When the sole 3 is in contact with the ground, the upper surface of the sole 3 is inclined so that the toe side is high and the heel side is low. Since the sole 3 is made of foamed rubber, it has high resilience, shock absorption, and shape recovery power, and it is possible to feel the unevenness along the road surface shape on the soles as if barefoot. Since the toe side has a high inclination, an uphill environment can be created even on flat ground, the center of gravity shifts without arching, and the posture can be extended to stimulate the abdominal muscles and back muscles. If there is a center of gravity at the position of the arch, it is possible to absorb and disperse the impact and reduce the burden on the ankle, knee joint and lower back by applying weight to the vertical arch part of the foot. When you step forward, the flexion width from the ankle to the instep and sole increases, and the outer longitudinal arch and inner longitudinal arch are activated.

FIG. 3 schematically shows the movement of the center of gravity of the sole of the foot and the action of the footwear 1 during walking. FIG. 3B shows a state of walking when wearing shoes having a flat sole. In FIG. 3A, when the sole of the center of gravity touches the ground, the center of gravity G moves from the heel to the thumb along a locus shown by a curve S. FIG. 3B shows the movement of the foot when wearing the footwear 10 with a flat sole, and FIG. 3C shows the movement of the foot when wearing the footwear 1 according to the present embodiment.

Comparing FIG. 3(b) and FIG. 3(c), when the foot touches the ground (p in the figure), the center of gravity of the flat footwear 10 is directly below, but the toe side is high and the heel side is inclined low. In the footwear 1, as in the footwears of Patent Documents 2 and 3, there is no grounded foot under the center of gravity G, and therefore, the person's chest is stretched and the center of gravity is reflected forward. When the grounded foot comes to the rear side (q in the figure), the joint of the toe bends. The center of gravity G gradually moves to the toes. The flat footwear 10 is prepared for kicking, but in the footwear 1, since the sole 3 is soft, the toes sink into the sole 3. This will be described later with reference to FIG. When the front foot touches the ground (r in the figure), the flat footwear 10 kicks out, while the footwear 1 kicks out with the center of gravity G remaining on the back foot.
The movement of the foot shown in FIG. 3 is a standard movement, but even for an old man who walks with the sole of the foot touching the ground, or for an elderly person with a narrow stride, the toe side is higher and the heel side is lower and the foot is inclined. It acts so as to naturally apply weight to the thumb.

FIG. 4 is a cross-sectional view of the footwear 1 according to the present embodiment at a base position XX where the toes are bifurcated, and shows a change in the toe part when the footwear 1 is worn and exercised. Since the whole of the instep of the foot is pressed against the sole by the main body 2, the fingers can be moved up and down, but the sole of the foot is fixed to the sole.

FIG. 4A is a standing state, and FIG. 4B is a stepped state. When the foot is in the state of q in FIG. 3C, the thumb starts to sink into the sole 3 when the user steps on the foot. In the footwear 1 of the present embodiment, since the main body 2 is of the tabi type, first, the thumb and the other fingers are separated from each other so that they are not interlocked with the other fingers. And since it is a tabi, the thumb moves independently of the other fingers. When the trajectory of the center of gravity moving on the sole of the foot leaves the sole of the foot, the center of gravity is at the position of the thumb, so that the thumb largely sinks in the sole 3 with respect to the other fingers. Since the footwear 1 has a structure in which the part 4 into which the thumb is inserted is separated, the thumb is depressed while rotating inward as shown by an arrow t. In the footwear 1 of this embodiment, the sinking amount d is about 30% of the thickness of the sole. In this manner, the thumb can be moved up and down just by walking, and this movement forcibly moves the front lateral arch to correct the arch.

The footwear 1 of Example 1 is a footwear having a size of 26 cm assuming a body weight of 60-65 kg, and is sunk by 6 mm with respect to the thickness 2 cm of the sole 3 of the toe (the heel is 1 cm). The sinking amount d is equivalent to at least the moving amount of the thumb moving downward with respect to the other fingers when the total weight is on the thumb as shown by r in FIG. , The other fingers barely sink to the sole 3). In order to forcibly move the front lateral arch, it is sufficient for the thumb to move downward by 4 mm or more, and the sole 3 may be adjusted so that the sinking amount d becomes larger if necessary. Since the sole 3 is made of foamed rubber, it can be reversibly compressed and deformed by the weight of a person by crushing bubbles contained in the rubber. Foamed rubber is more suitable as a material for the sole than other cushioning materials.
At least the position immediately below the thumb may be a flexible material or an elastic material such as foamed rubber, and it is not necessary to use foamed rubber for the entire sole as in the first embodiment. This is because it is not necessary to cause the parts other than the thumb part to be largely depressed by compression. Further, the main body 2 is preferably made of a rubber material, but may be a tabi type formed of cloth or leather as long as it holds the foot.

As impressions of wearing the footwear 1, "I feel tension in the triceps surae in 1 to 2 minutes after walking.", "10 minutes after walking, I feel a dry feeling before sweating.", "About 20 minutes after walking." I feel that my back is stretched.”, “I feel tension in my quadriceps about 25 minutes after walking.”, “It ends in 30 minutes. I sweat a little and feel a light tension around my biceps. There is a feeling of fatigue in the legs and waist that remains after jogging, but breathing is normal."

In the above-mentioned embodiment, the main body 2 is formed into a tabi shape, but it may have another structure in order to move the thumb independently. FIG. 5 shows footwear 11 according to the second embodiment. 5A shows a plane, FIGS. 5B and 5C show a Y1-Y1 cross section, and FIG. 5D shows a Y2-Y2 cross section. In the footwear 11, the main body 12 does not separate the thumb and the other fingers, but wraps the entire toes. On the other hand, a separator 15 that separates the thumb and the other finger at a distance is erected from the sole 13 and attached inside the main body 12. The separator 15 shown in the figure is hollow, but it does not have to be hollow as long as it has flexibility. The main body 12 is made of cloth or leather and has a lower foot holding force than that of the main body 2 of the first embodiment. Similar to the previous embodiment, the sole 13 is made of foamed rubber, but other soft material or elastic material may be used. Further, since it is sufficient that only the portion directly under the thumb sinks without having to use a flexible material or an elastic material as a whole, a flexible material or an elastic material such as a coil spring may be provided at least just under the thumb.

As shown in FIG. 5(c), when the foot is stepped on, the separator 15 separates the thumb from the other finger so that the other finger does not interlock with the other finger. Begins to move independently. When the trajectory of the center of gravity moving on the sole of the foot leaves the sole of the foot, the center of gravity is at the position of the thumb, so that the thumb largely sinks in the sole 3 with respect to the other fingers. The upper part of the body 12 is pulled, and the thumb sinks while rotating inward as shown by the arrow t. In this way, the front lateral arch is forcibly moved, and the arch can be corrected, as in the footwear 1 of the first embodiment. Although the flexibility of the upper part of the main body 12 is inferior to that of the footwear 1, the main body 12 can be formed in the shape of a normal shoe, so that there is an effect that the eyes are not bothered when going out.

FIG. 6 shows footwear 21 according to the third embodiment. 6A shows a plane, FIGS. 6B and 6C show a Z1-Z1 cross section, and FIG. 6D shows a Z2-Z2 cross section. In the footwear 21, like the footwear 11, the main body 22 does not separate the thumb and the other fingers and wraps the entire body. On the other hand, the sole 23 is separated only by the outline area 231 of the thumb which is directly below the thumb, and is independently movable with respect to a portion of the sole 23 immediately below other fingers. The sole 23 is made of foamed rubber as in the previous embodiment. The main body 22 is made of cloth or leather, has a lower foot holding force than the main body 2 of the first embodiment, and is formed with a slight margin for the foot. Also, the location of separation is within the outline of the thumb, and the base portion 232 of the thumb may be separated or continuous. When the outline of the thumb including the portion 232 is completely separated from the sole 23, it is preferable to attach the bottom member 25 under the sole 23. Further, at least the thumb portion may be configured differently from the other soles 23 to promote the sinking of only the thumb portion. This is because it is not necessary to cause the parts other than the thumb part to be largely depressed by compression.

As shown in FIG. 6C, when the foot is stepped on, only the contour area of the thumb is compressed and starts sinking without interlocking with other soles 23. When the locus of the center of gravity moving along the sole of the foot separates from the sole of the foot, the center of gravity comes to the position of the thumb, so that the thumb exerts a large compressive force on other fingers and sinks into the sole 23. Since the outline of the thumb is separated from the other part, this subduction is suppressed from being propagated to the other part. The upper part of the main body 22 is pulled in the same manner as the footwear 11. In this way, the front lateral arch is forcibly moved, and the arch can be corrected, as in the footwear 1 of the first embodiment.

1 Footwear 2 Body 3 Sole

Claims (4)

A method of stimulating the front lateral arch of a foot to train muscle strength by walking with footwear on the foot,
When the foot touches the ground, the sole of the footwear is supported in an inclined state with the toe side higher than the heel side,
At least the part of the sole on which the thumb rides is made of a flexible material or an elastic material to separate the thumb of the sole from other fingers, or to sink the area of the thumb of the sole independently of the area of the other fingers. The muscular force characterized by forcibly moving the front lateral arch of the foot by making the thumb independently sink 4 mm or more from the toe when the foot kicks the ground. How to train. When the foot touches the ground, the toe side is higher than the heel side, the sole is inclined, and the sole is inclined to decrease the thickness from the toe side to the heel side, and at least the thumb is It is characterized in that the riding sole part is formed of a flexible material or an elastic material, and the range of the thumb of the sole is independently set to be 4 mm or more from the toe and different in configuration so as to promote downward depression. Footwear to do. When the foot touches the ground, the sole is inclined so that the toe side is higher than the heel side, and the sole is inclined to reduce the thickness from the toe side to the heel side, and at least the thumb The sole portion directly below is formed of a flexible material or an elastic material, and further, a separator for separating the thumb and other fingers at a distance is provided, and the thumb and other fingers are separated at a distance by the separator. Footwear characterized by allowing the thumb to sink 4 mm or more independently of other fingers. When the foot touches the ground, the toe side is higher than the heel side, the sole is inclined, and the sole is inclined to reduce the thickness from the toe side to the heel side, the contour of the thumb. An inner sole portion of the thumb is separated from an outer sole portion thereof, and the inner sole portion of the contour of the thumb is formed of a flexible material or an elastic material, and independently sinks 4 mm or more from the toe. Footwear characterized by allowing the thumb to sink independently of the other fingers.