JP2021168813A - Training apparatus, training method and training chair - Google Patents

Abstract

To provide a training apparatus, a training method and a training chair, capable of strengthening efficiently transverse abdominal muscle in deep trunk muscle important for supporting a body.SOLUTION: An ischium catch seat 130 having a curved surface protrusion 133 supports ischium of a user U by a zenith part 134 of the curved surface protrusion at the seating time, and in the state where the user U is seated on the ischium catch seat 130, the user U pushes back at the waist a lumbar control pad 140 put on the lumbar part of the user U from the rear side.SELECTED DRAWING: Figure 1

Description

The present invention relates to training equipment, training methods, and training chairs, and particularly to training equipment, training methods, and training chairs that strengthen and activate the user's deep core muscles.

The average life expectancy of Japanese people is increasing year by year. According to the 2018 simplified life table published by the Ministry of Health, Labor and Welfare, the average life expectancy of Japanese is 81.25 years for men and 87.32 years for women, which is 0 for men compared to the previous year. It is 106 years, which is 0.05 years higher for women.

The average life expectancy of Japanese people over 80 years is one of the highest in the world, but it is also true that the number of people who are forced to live in bed for a long period of time is increasing due to the increase in average life expectancy. Is.

For example, in 2016, the "healthy life expectancy" calculated by the Ministry of Health, Labor and Welfare was 72.14 years for men and 74.79 years for women. In other words, the number of years of long-term care or bedridden is about 9 years for men and about 13 years for women, and even if the average life expectancy increases and people can live longer, they cannot live longer in a healthy state.

It is said that exercise is important so that you will not be bedridden in the future. For example, the weakness of the muscles for walking by the elderly makes it easier for them to fall, and if they break due to a fall, they cannot walk.

It is also said that muscle mass and healthy life expectancy are proportional. When muscle mass decreases with aging, it becomes difficult to move the body itself, which leads to a decrease in activity. This is because the decrease in the amount of activity accelerates the decrease in muscle mass, and eventually the person becomes immobile.

In other words, in order to live a healthy and long life, it is important to form a body that can move and act on one's feet forever, and it is necessary to maintain and increase the necessary muscle mass.
In particular, it is said that it is especially important to train the deep core muscles, which are also called inner muscles, so that you will not be bedridden.

In the human body, the muscles in the trunk, which is the body part excluding the limbs and head, are called trunk muscles, and they are not the muscles that exist near the surface of the body. The muscles that exist in the deep part of the body are the deep core muscles that stabilize the trunk and contribute to the smooth movement of the limbs.

This activity of the deep core muscles allows the hands to minimize and protect the body when it loses balance, and the feet take a step to restore balance. There is.

The spine is the only bone that connects the upper body, including the head, to the pelvis, and there is no skeleton between the thorax and the pelvis. The transversus abdominis and multifidus muscles play a role in stabilizing the spinal column between the thoracic and pelvis where this skeleton does not exist.

On the other hand, the muscle that forms the abdominal muscle, the so-called six pack, is the rectus abdominis muscle that exists in front of the abdomen. These are superficial muscles, also called outer muscles, and examples of superficial muscles include the rectus abdominis muscle, the pectoralis major muscle that forms a thick chest plate, and the biceps brachii muscle that forms a biceps.

The deep trunk muscles are muscles that are located deeper than the superficial muscles. In daily life, the deep core muscles are not consciously moved, but the deep core muscles are the first muscles to work in every aspect of daily life. For example, when an object is lifted, the brain determines whether the object is heavy or light. Then, by moving the deep trunk muscles, the body is supported, and the surface muscles exert a force that matches the weight of the object, so that the object can be lifted.

For this reason, when the muscle mass and activity of the deep trunk muscles decrease, it becomes difficult to support the body, and the body tends to lose its posture or fall. The tendency to stumble or fall with age is often due to a decrease in the activity of the deep core muscles.

Generally, in order to train the various muscles of the abdomen, as one of the training methods, the abdominal muscle exercise that trains the various muscles of the abdomen by repeating the action of raising the upper body from the lying state is known.

However, the movement of raising the upper body from the state of lying down is a very difficult movement for the elderly and those with a disease in the lower back. Therefore, a training device has been developed that can strengthen various muscles of the abdominal back with easy movement without imposing a burden on the lower back (see, for example, Patent Document 1).

In the training equipment disclosed in Patent Document 1, a movable body sandwiched between both legs of the user is swingably attached to a base, and the base is rotatable with respect to a seat plate on which the user is seated. At the same time, a means for applying a resistance force to the movable body in the swing direction, such as an elastic member such as rubber or a spring or a member using hydraulic pressure, is interposed between the movable body and the base. There is.

As a result, the user repeats the movement of tilting the knee to the left or right while sandwiching the movable body whose resistance is generated by various means such as tension of the elastic member, hydraulic pressure, pneumatic pressure, and friction between the legs, and thus the abdomen. It can strengthen not only the upper, middle and lower parts of the rectus abdominis, but also the core muscles of the body such as the external oblique muscle, the internal oblique muscle and the transverse abdominis muscle, the erector spinae muscle and the iliopsoas muscle.

Japanese Unexamined Patent Publication No. 2005-342177

However, in the training device disclosed in Patent Document 1, the muscles around the abdomen are strengthened by moving the muscles existing on the surface of the abdomen, so that the abdomen in the deep trunk muscles, which is particularly important for supporting the body, is used. There was a problem that the transverse muscles could not be strengthened efficiently.

As mentioned above, the transversus abdominis muscle is located deep in the lumbar region and contracts before the limbs move to stabilize the spinal column. Therefore, the transverse abdominal muscle is an important muscle to support the body.

However, unlike the superficial muscle, the transversus abdominis muscle is a muscle that is difficult to consciously contract, so even if the training device disclosed in Patent Document 1 is used, the transversus abdominis muscle cannot be contracted and strengthened. There's a problem.

In order to contract the transverse abdominal muscles, for example, the pelvic floor muscles can be contracted so as to stop urine in the middle of urination, or the abdomen can be dented. However, it is not possible to consciously continuously contract the transverse abdominal muscle, just as the muscle contraction when stopping urine in the middle of urination is instantaneous. Therefore, it is not possible to consciously continuously contract the transversus abdominis muscle to strengthen the transversus abdominis muscle.

That is, even if the training device disclosed in Patent Document 1 is used, the transversus abdominis muscle cannot be consciously contracted and strengthened, and the transversus abdominis muscle is consciously attempted to contract in daily life. However, the transversus abdominis muscle could not be strengthened efficiently because it was instantaneous and could not be continuously contracted and strengthened.

The present invention has been made in view of these points, and provides a training device, a training method, and a training chair that can efficiently strengthen the transversus abdominis muscle in the deep trunk muscles that are important for supporting the body. The purpose is to provide.

In the present invention, in order to solve the above problem, in the training device for strengthening the deep trunk muscle of the user, in the training device for strengthening the deep trunk muscle of the user, at the zenith of the curved convex portion at the time of sitting. A sciatic catch sheet having a curved convex portion that supports the sciatic bone of the user, and a sciatic catch sheet in which the user is seated on the sciatic catch sheet and applied to the lumbar vertebrae of the user from the posterior side. A training device is provided that comprises a lumbar control pad for pushing back in.

As a result, the ischial catch sheet having the curved convex portion supports the user's ischial bone at the zenith of the curved convex portion when seated, and the user is seated on the ischial catch sheet from the posterior side. The user pushes back the lumbar control pad applied to the lumbar region with the lumbar region.

By aligning the user's ischia with the zenith of the curved convex portion of the ischial catch sheet and sitting, the pelvic tilt angle of the seated user stands in the middle position, and the weight can be supported by the user's ischia. When the user sits in a posture in which the weight is supported by the ischium in this way, the user sits with the transversus abdominis muscle contracted.

In addition, when the user is seated on the ischial catch sheet, the lumbar control pad is applied to the user's lumbar spine from the posterior side, and the user pushes the lumbar control pad back at the lumbar region, so that the lordosis of the lumbar spine is suppressed to a small extent. Therefore, the transverse abdominal muscle contracts further.

Further, in the present invention, in the training method for strengthening the deep trunk muscle of the user, the ischial bone catch sheet having the curved convex portion supports the user's ischium at the zenith of the convex portion on the curved surface when seated. A step of applying the lumbar control pad to the lumbar region of the user from the posterior side while the user is seated on the ischial catch sheet, and a step of the user pushing the lumbar control pad back at the lumbar region are provided. A training method characterized by is provided.

As a result, the ischium catch sheet having a curved convex portion supports the user's ischium at the zenith of the convex portion on the curved surface when seated, and the user is seated on the ischial catch sheet from the posterior side. A lumbar control pad is applied to the lumbar region, and the user pushes the lumbar control pad back with the lumbar region.

By aligning the user's ischia with the zenith of the curved convex portion of the ischial catch sheet and sitting, the pelvic tilt angle of the seated user stands in the middle position, and the weight can be supported by the user's ischia. When the user sits in a posture in which the weight is supported by the ischium in this way, the user sits with the transversus abdominis muscle contracted.

In addition, when the user is seated on the ischial catch sheet, the lumbar control pad is applied to the user's lumbar spine from the posterior side, and the user pushes the lumbar control pad back at the lumbar region, so that the lordosis of the lumbar spine is suppressed to a small extent. Therefore, the transverse abdominal muscle contracts further.

Further, in the present invention, in a training chair that strengthens the deep trunk muscles of the user,
A sciatic catch sheet having a curved convex portion that supports the user's ischium at the zenith of the curved convex portion when seated, and a sciatic catch sheet in which the user is seated on the sciatic catch sheet, from the posterior side of the user. Provided is a training chair that is applied to the lumbar region and is provided with a lumbar control pad for the user to push back at the lumbar region.

As a result, the ischial catch sheet having the curved convex portion supports the user's ischial bone at the zenith of the curved convex portion when seated, and the user is seated on the ischial catch sheet from the posterior side. The user pushes back the lumbar control pad applied to the lumbar region with the lumbar region.

By aligning the user's ischia with the zenith of the curved convex portion of the ischial catch sheet and sitting, the pelvic tilt angle of the seated user stands in the middle position, and the weight can be supported by the user's ischia. When the user sits in a posture in which the weight is supported by the ischium in this way, the user sits with the transversus abdominis muscle contracted.

In addition, when the user is seated on the ischial catch sheet, the lumbar control pad is applied to the user's lumbar spine from the posterior side, and the user pushes the lumbar control pad back at the lumbar region, so that the lordosis of the lumbar spine is suppressed to a small extent. Therefore, the transverse abdominal muscle contracts further.

According to the training device, the training method, and the training chair of the present invention, the lumbar spine control pad is applied from the posterior side to the lumbar spine of the user while the user is seated on the curved convex portion of the ischial catch sheet. Since the user pushes back the lumbar control pad at the lumbar region, the following effects are obtained.

First, by sitting on the curved convex portion of the ischial catch sheet, the user's pelvic tilt angle stands up at an intermediate position, and the user can sit with the transversus abdominis muscle contracted. As a result, the user can continuously contract the transversus abdominis muscle simply by sitting on the ischial catch sheet.

Furthermore, the lordosis of the lumbar spine becomes smaller when the user pushes back the lumbar control pad applied to the lumbar spine of the user with the pelvic tilt angle of the user standing in the middle position by the sciatic catch sheet. Since the transversus abdominis muscle can be brought into a contracted state, the strength of the transversus abdominis muscle contraction can be adjusted by the strength of pushing back the lumbar control pad.

As a result, the user can continue to contract the transversus abdominis muscle simply by pushing back the lumbar control pad and sitting on the transversus abdominis muscle. By strengthening and weakening, the transversus abdominis muscle can be strengthened efficiently.

It is a perspective view which shows the training chair which concerns on this embodiment. It is a side view which shows the training chair which concerns on this embodiment. It is a perspective view which shows the detail of the ischium catch sheet. It is a side view which shows the detail of a lumbar spine control pad. It is a side view which shows the state that a user was seated in a training chair. It is a side view which shows the detail of a human pelvis. It is an ultrasonic photograph comparing the time of relaxation and the time of contraction of abdominal muscles. It is a rear view of the human body which shows the location of the 7th thoracic spinous process and the 4th lumbar spinous process. It is a side view which shows the positional relationship of the anterior superior iliac spine, the posterior superior iliac spine, the 7th thoracic vertebra, and the 4th lumbar vertebra while the user is seated. It is a side view which shows the positional relationship of the anterior superior iliac spine, the posterior superior iliac spine, the 7th thoracic vertebra, and the 4th lumbar vertebra in the state of using the lumbar control pad.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing a training chair according to the present embodiment.
As shown in FIG. 1, the training chair 100 includes a front leg 110, a rear leg 120, a ischial catch seat 130, and a lumbar control pad 140.

The front leg portion 110 and the rear leg portion 120 are formed by bending a hollow member having a circular cross section, for example, and the rear leg portion 120 is rotatably connected to the front leg portion 110 by a rotation connecting portion 121. ing.

The rear leg 120 is folded by rotating the rear leg 120 around the rotary connecting portion 121 in the closing direction. By freely folding the hind legs 120, the training chair 100 can be easily carried.

The ischial catch sheet 130 is fixed to the front leg 110 via a height adjusting mechanism 131 that adjusts the height of the ischial catch sheet 130, and the ischial catch sheet 130 is fixed to the front leg 110 by the function of the height adjusting mechanism 131. Adjustably fixed at any height.

Examples of the height adjusting mechanism 131 include a method of fixing the position to the front leg 110 by tightening a bolt to the front leg 110, a pipe holder for fixing the position to the front leg 110 by a force for sandwiching the front leg 110, and the like. Be done.

Since the ischial catch sheet 130 can be fixed to an arbitrary height of the front leg 110 by the function of the height adjusting mechanism 131, the height of the ischial catch sheet 130 can be adjusted according to the body shape of the user U. can.

Further, the ischium catch sheet 130 is a seat for the user U (not shown here) to be seated, and has a shape so that the weight of the user U can be supported by the ischium when the user U is seated.

The specific shape of the ischial catch sheet 130 is a semi-cylindrical shape obtained by dividing a cylinder in the height direction, and is formed of an elastic member having elasticity. The ischial catch sheet 130 is installed with the divided cross section at the bottom when the cylinder is divided, and the user U sits so that the ischium is aligned with the zenith of the semi-cylindrical shape.

When the user U sits on the ischial catch sheet 130, the pelvis of the seated user U stands up. As a result, the weight of the user U can be supported by the standing ischium.

In this way, when the user U sits in a posture in which the pelvis of the user U stands up and the user U supports his / her weight with the ischium, he / she can sit in a state where the transversus abdominis muscle is contracted as described later. ..

As a result, the user U can continuously contract the transversus abdominis muscle simply by sitting on the training chair 100, and can slowly apply a load to the transversus abdominis muscle with continuous force. That is, the user U can efficiently strengthen and activate the transversus abdominis muscle simply by sitting on the training chair 100.

The seating surface of an ordinary chair that is generally manufactured is formed so that the rear side is lowered so that the seating surface is tilted backward. This is because the user U sits on the seat surface that is tilted backward, the pelvis of the user U is tilted backward according to the seat surface that is tilted backward, and the pelvis of the user U is tilted backward. U's core muscles, especially the abdominal muscles, loosen. By loosening the trunk muscles of the user U seated on the backward tilted seat surface, the user U can relax and sit on the chair.

In this way, by tilting the seat surface of the chair backward, the seated user U can relax. Therefore, the chairs in the conference room and the chairs dedicated to officers are further behind the seat surface than the general office chairs. By increasing the tilt angle, you can sit more relaxed.

However, since the pelvis of the user U who sits on the seat surface tilted backward is tilted backward, the trunk muscles including the transversus abdominis muscle are loosened. Therefore, the transversus abdominis muscle cannot be continuously contracted. In other words, the transversus abdominis muscle cannot be trained even if the person sits on a seat that is tilted backward.

Furthermore, since the user U who sits on the seat surface tilted backward must maintain the sitting position with the trunk muscles loosened, the user U does not support the weight with the pelvis, but includes the gluteus maximus muscle. By tensioning the superficial muscles of the buttocks, the sitting position will be maintained.

When the user U uses a chair with a seat surface tilted backward in this way for a long period of time, the muscle mass is maintained or increased due to the tension of the superficial muscles such as the gluteus maximus muscle of the user U, but the transversus abdominis muscle. Since the deep trunk muscles such as the above are maintained in a relaxed state, the amount of muscle activity decreases.

As a result, the balance between the superficial muscles and the deep trunk muscles is lost, and the amount of activity of the deep trunk muscles decreases, making it unstable to support the body, making it easier to lose posture and causing back pain. , You will fall down.

Therefore, in the training chair 100 of the present embodiment, the pelvis stands up only when the user U sits on the ischial catch seat 130 tilted forward, and the pelvis stands up to support the weight with the ischial bones, that is, the user sits in the correct posture. be able to.

As a result, even if the user U sits on the training chair 100 for a long time, the load on the waist and back of the user U can be reduced. As a result, the transversus abdominis muscle can be efficiently trained because the load can be slowly applied to the transversus abdominis muscle with a continuous force instead of the exercise of repeating momentary movements.

The lumbar spine control pad 140 is a padding material for hitting the lumbar spine of the user U seated on the ischial catch sheet 130, and is extended from the padding portion 141 and the contacting portion 141 to be applied to the lumbar spine of the user U. A stay portion 142 for supporting the portion 141, a contact portion 141, and an angle adjusting mechanism 143 for adjusting the stay portion 142 to an arbitrary angle are provided.

The contact portion 141 and the stay portion 142 are fixed to the front leg portion 110 or the extension member 144 extended from the front leg portion 110 via the angle adjusting mechanism 143 that adjusts the angle of the contact portion 141 and the stay portion 142, and the angle is increased. By the function of the adjusting mechanism 143, the contact portion 141 and the stay portion 142 are fixed to the front leg portion 110 or the extension member 144 so as to be adjustable at an arbitrary angle.

The angle adjusting mechanism 143 is, for example, an angle adjusting hinge that can freely adjust the angle, and can hold the contact portion 141 and the stay portion 142 at an arbitrary angle from the front leg portion 110 or the extension member 144.

It should be noted that an angle adjusting mechanism 145 (not shown here) that makes it possible to adjust the angle between the contact portion 141 and the stay portion 142 may also be provided between the contact portion 141 and the stay portion 142. By the functions of the angle adjusting mechanism 143 and the angle adjusting mechanism 145, the position and orientation of the contact portion 141 can be freely adjusted, and the contact portion 141 can be applied to the lumbar spine portion according to the body shape of the user U.

By applying the contact portion 141 to the lumbar vertebrae of the user U seated on the ischial catch sheet 130, the position of the lumbar vertebrae can be guided so that the transversus abdominis muscle contracts most, as will be described later.
Normally, the human lumbar spine is lordotic so as to warp anteriorly. Also, when instructed to "take a good posture", the lordotic lumbar spine tends to lordosis even more strongly.

Therefore, the lordosis of the lumbar spine is reduced by applying the contact portion 141 to the lumbar spine portion of the user U seated on the ischial catch sheet 130 and instructing the user U to push the contact portion 141 back. This allows the position of the lumbar spine to be guided so that the transverse abdominal muscles contract most.

As described above, in the training chair 100 of the present embodiment, the transversus abdominis muscle can be continuously contracted only by the user U sitting on the ischium catch sheet 130, and the user sitting on the ischium catch sheet 130. By applying the contact portion 141 of the lumbar control pad 140 to the lumbar portion of the U, the position of the lumbar spine can be guided so that the transversus abdominis muscle contracts most.

In this way, the user U can efficiently train the transversus abdominis muscle without being particularly conscious by simply sitting on the training chair 100. Therefore, even a handicapped person can use the training chair 100 to train the transversus abdominis muscle, which is a deep trunk muscle.

Moreover, not only disabled people but also athletes and elderly people can easily train the transversus abdominis muscle by simply sitting on the training chair 100, so that the transversus abdominis muscle can be trained in daily life.

In this way, the training chair 100 can easily train the transversus abdominis muscles of various users U from persons with disabilities to athletes, so that it is possible to suppress injuries and falls caused by losing posture due to a decrease in transversus abdominis muscle activity. It is possible to prevent bedridden in the future.

Furthermore, by casually training the transverse abdominal muscles with the training chair 100, it is possible to prevent bedridden and long-term care due to a fall, which contributes to the extension of healthy life expectancy, so that longevity can be enjoyed obediently.

In addition, by training the transverse abdominal muscles in the training chair 100 to extend healthy life expectancy, it is possible to save medical expenses and long-term care expenses that are increasing with aging. As a result, it is possible to suppress an increase in the health insurance premium, an increase in the patient's burden due to the revision of the medical fee, and an increase in the medical expense self-pay ratio for the elderly.

FIG. 2 is a side view showing a training chair according to the present embodiment.
As shown in FIG. 2, the ischial catch sheet 130 is fixed to the front leg 110 via a height adjusting mechanism 131 that adjusts the height of the ischial catch sheet 130.

The ischial catch sheet 130 is fixed to the upper surface of the horizontal pedestal 132 provided on the horizontal front side of the height adjusting mechanism 131 with the zenith 134 formed on the semi-cylindrical curved convex portion 133 facing upward.

When the user U sits on the ischial catch sheet 130, the pelvis of the seated user U stands up. As a result, the weight of the user U can be supported by the standing ischium.

The front leg 110 to which the height adjusting mechanism 131 is attached is provided with a height scale 111 that allows the fixed position of the height adjusting mechanism 131 to be easily grasped. The height scale 111 is, for example, a numerical value attached to the front leg portion 110 in accordance with the scale lines marked at equal intervals or the scale lines.

The height of the ischial catch sheet 130 is adjusted according to the body shape of the user U, the user U memorizes the numerical value displayed on the height scale 111, and the height of the sciatic catch sheet 130 is adjusted according to the memorized numerical value. By adjusting the above, even when the training chair 100 is shared by a plurality of users U, the height of the ischial catch sheet 130 suitable for one's body shape can be easily reproduced.

Further, by providing the height scales 111 on the front legs 110 on both the left and right sides in the same manner, when adjusting the height of the ischial catch sheet 130, the height can be adjusted while looking at the height scales 111, so that the heights on the left and right sides can be adjusted. The horizontal pedestal 132 can be adjusted to be horizontal by matching the heights.

FIG. 3 is a perspective view showing the details of the ischial catch sheet.
As shown in FIG. 3, the ischial catch sheet 130 has a semi-cylindrical curved convex portion 133 in which a cylinder is divided in the height direction, and is formed of an elastic member having elasticity.

The sciatic catch sheet 130 is formed of, for example, an ethylene-vinyl acetate copolymer resin called EVA (Ethylene Vinyl Acetate Copolymer) resin, a polyethylene resin, or the like, and the EVA resin has elasticity, flexibility, toughness, and bass retention. , Has characteristics such as weather resistance.

Compared to urethane resin used for low-resilience pillows, EVA resin is not flexible enough to sink when a load is applied, but has elasticity that slightly dents when a load is applied. ..

Therefore, the ischium catch sheet 130 can support the ischial bone of the user U by the zenith portion 134 formed on the curved convex portion 133 having a semi-cylindrical shape without significantly deforming the shape even when the user U is seated. With moderate flexibility, it does not hurt the buttocks even when sitting for a long time.

The ischial catch sheet 130 facilitates a positional relationship in which the line connecting the anterior superior iliac spine and the posterior superior iliac spine is parallel to the floor surface by the ischial catch sheet 130 when the user U is seated. Can be taken to.

Specifically, the curved convex portion 133 of the ischial catch sheet 130 is formed in a semi-cylindrical shape obtained by dividing a cylinder having a radius of 75 mm and a height of 305 mm into two in the height direction so that the divided cross section 135 is the bottom surface. Will be installed.

By aligning the ischium of the user U with the zenith 134, which is the zenith of the curved surface, and the user U sits on the ischial catch seat 130, the user U is supported by the surface as in the case of sitting on a conventional flat seat chair. Unlike the ischium catch sheet 130, the ischial bone is supported at a point so that the ischial bone can stand up and the transversus abdominis muscle can be contracted.

The height of the curved surface convex portion 133 and the size of the curved surface forming the zenith portion 134 can be arbitrarily set. However, if the curved surface of the curved convex portion 133 is made large, that is, if the diameter of the curved convex portion 133 is made too large, the curved convex portion 133 will support the entire buttocks, and the user U will not be able to support the weight with the ischium. It ends up. Therefore, the radius of curvature of the curved surface forming the zenith portion 134 is preferably formed with a radius of curvature sufficient for the user's pelvis to stand in an intermediate position.

The radius of curvature of the curved surface forming the zenith 134 can be arbitrarily set according to the size and height of the body. For example, the radius of curvature may be about 75 mm for adults and about 60 mm for children.

Further, it is also possible to form an extension portion 136 in which the division cross section 135 side of the semi-cylindrical curved surface convex portion 133 is extended in the depth direction. Specifically, the extending portion 136 having a thickness of 15 mm on one side of the divided cross section 135 of the semi-cylindrical curved convex portion 133 becomes 205 mm in total with the divided cross section 135 of the semi-cylindrical curved convex portion 133. Is formed in.

By forming the extension portion 136 continuously in the depth direction of the curved surface convex portion 133, the depth of the ischial catch sheet 130 becomes large, and the buttocks are provided on the extension portion 136 when the deep trunk muscles are not trained. By sitting together, you can relax and sit on the ischial catch seat 130.

Further, by forming the ischial catch sheet 130 so as to have a curved surface from the zenith to the bottom, the user U seated on the ischial catch sheet 130 can be seated from the buttocks to the thighs without discomfort.

Further, although EVA resin and polyethylene resin have appropriate elasticity, their durability is weak, so that the semi-cylindrical curved convex portion 133 and the extending portion 136 can be covered with a cover member.

FIG. 4 is a side view showing the details of the lumbar control pad.
As shown in FIG. 4, the lumbar control pad 140 includes a contact portion 141, a stay portion 142, an angle adjusting mechanism 143, an extension member 144, and an angle adjusting mechanism 145.

As a result, the position and orientation of the contact portion 141 can be freely adjusted, and the contact portion 141 can be applied to the lumbar spine portion according to the body shape of the user U in the orientation suitable for the body shape of the user U.

Further, the angle adjusting mechanism 143 or the angle adjusting mechanism 145 is provided with an angle scale 143K that allows the angle to be adjusted to be easily grasped. The angle scale 143K provided on the angle adjusting mechanism 145 is, for example, a numerical value attached to the side surface of the angle adjusting mechanism 145 in accordance with an angle line or an angle line marked at an equal angle. Further, by providing the center line 142C at the center of the stay portion 142, the angle at which the angle scale 143K and the center line 142C intersect can be easily grasped as an adjustment angle.

The angle of the lumbar control pad 140 is adjusted according to the body shape of the user U, the user U memorizes the angle displayed on the angle scale 143K and the center line 142C, and the lumbar control pad 140 is adjusted to the memorized angle. By adjusting the angle, even when the training chair 100 is shared by a plurality of users U, the angle of the lumbar spine control pad 140 suitable for one's body shape can be easily reproduced.

Further, the angle adjusting mechanism 143 has an angle holding force which is a resistance force such that the angle does not change when the user U pushes the lumbar spine back to the back side. As a result, even if the user U pushes the lumbar spine back, the adjustment angle of the lumbar control pad 140 does not change.
The contact portion 141 may be formed of a soft material such as urethane foam so that the user U does not cause pain when the lumbar spine is pushed back to the back side.

FIG. 5 is a side view showing how the user is seated in the training chair.
As shown in FIG. 5, when the user U sits on the training chair 100, the ischial catch sheet 130 is deformed so as to be crushed by the weight of the user U, whereby the user U supports the weight with the ischial bone. You can understand that for yourself.

Further, since the ischial catch sheet 130 includes a zenith portion 134 formed on a semi-cylindrical curved convex portion 133 on which the ischial bones of the user U are seated together, the seated user U is in a forward leaning posture. The pelvis of user U stands up. As a result, the weight of the user U can be supported by the upright ischium, and the transversus abdominis muscle can be continuously contracted.

Further, by placing the contact portion 141 on the lumbar spine of the user U seated on the ischial catch sheet 130 and taking a posture so that the user U pushes the contact portion 141 back, the lordosis of the lumbar spine becomes smaller and the abdomen becomes smaller. It can lead to the position of the lumbar spine where the transverse muscles can contract most.

As a result, the user U can continuously contract the transversus abdominis muscle simply by sitting on the training chair 100, and can efficiently train the transversus abdominis muscle. Further, by adjusting the force with which the user U pushes the contact portion 141 backward, the strength with which the transversus abdominis muscle contracts can be adjusted. For this reason, the strength and weakness of the transversus abdominis muscle contraction, which has been considered difficult in the past, and the continuous muscle contraction become possible, and the transversus abdominis muscle can be strengthened more efficiently.

FIG. 6 is a side view showing the details of the human pelvis.
As shown in FIG. 6, the pelvis is composed of a pair of left and right ilium, ischium, and hip bone, sacrum, and coccyx which are not shown here. The joint between the ischium, ilium, and pubis is connected to the femur to form the hip joint.

The tensor fasciae latae muscle and sartorius muscle (not shown here) are attached to the anterior side of the ilium and are called the anterior superior iliac spine ASIS (Anterior Superior Iliac Spine, hereinafter referred to as the anterior superior iliac spine A). A protruding portion is formed on the surface. Further, on the posterior side of the ilium, the posterior superior iliac spine PSIS (Posterior Inferior Iliac Spine, hereinafter referred to as the posterior superior iliac spine P), which is a protrusion protruding posteriorly, is formed.

By observing the positional relationship between the anterior superior iliac spine A and the posterior superior iliac spine P, the degree of inclination of the pelvis can be grasped. For example, if the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P is almost horizontal, it can be considered that the pelvis is in the intermediate position, that is, the pelvis is upright.
On the other hand, if the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P is tilted anteriorly, it is considered that the pelvis is tilted forward, that is, the pelvis is tilted anteriorly. be able to.

When the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P is inclined backward, the seating surface generally manufactured as described above sits on a chair or the like that is inclined backward. You can relax and sit in a chair, but you cannot train your core muscles, especially the transverse abdominal muscles, which are the abdominal muscles.

If the pelvis continues to tilt backward, the so-called spine bends backward, resulting in a so-called stoop-like posture. The rounded back increases the strain on the muscles around the neck that support the head, and may cause symptoms such as stiff shoulders and back pain.

That is, the correct posture when sitting, that is, the posture with less burden on the body, is preferably a state in which the pelvis is upright and the weight can be supported by the ischium. This means that the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P preferably approaches horizontally.

In the training chair 100 of the present embodiment, when the user U sits on the ischial bone catch sheet 130, the weight is supported by the ischial bone of the user U at the zenith portion 134 of the curved convex portion 133 of the ischial bone catch sheet 130. When the line connecting the posterior superior iliac spine A and the posterior superior iliac spine P approaches horizontally, the pelvis is in the intermediate position, that is, the pelvis is upright.

FIG. 7 is an ultrasonic photograph comparing the time when the abdominal muscles are relaxed and the time when the abdominal muscles are contracted.
As shown in FIG. 7, a state in which a generally manufactured seat surface is tilted backward and relaxed, and a state in which the transversus abdominis muscle is contracted while sitting on a sciatic catch sheet 130 of a training chair 100 are superposed. When measuring the thickness of the transversus abdominis muscle with a sonic diagnostic device, it is clear that the thickness of the muscle, especially the transversus abdominis muscle, which is the deep trunk muscle, increases when sitting on the sciatic catch sheet 130 of the training chair 100. You can see that.

That is, it can be seen that when the user U sits on the ischial catch sheet 130, the pelvis rises and the transversus abdominis muscle contracts by supporting the weight with the ischium. As a result, the user U seated in the training chair 100 contracts the transversus abdominis muscle by sitting, and as long as he / she continues to sit down, the transversus abdominis muscle can maintain the contracted state.

Since training for continuous muscle contraction can be performed simply by sitting on the training chair 100, the transversus abdominis muscle in the deep trunk muscles can be used as a part of life while watching TV, talking, reading a book, etc. Can be easily trained.

FIG. 8 is a rear view of the human body showing the locations of the 7th thoracic spinous process and the 4th lumbar spinous process.
As shown in FIG. 8, the cervical spine is represented by C1 to C7, the thoracic spine is represented by T1 to T12, and the lumbar spine is represented by L1 to L5.

The 7th thoracic spinous process (T7 spinous process, hereinafter referred to as the 7th thoracic vertebra T) is a spinous process of the 7th thoracic vertebra T existing in a line connecting the lower corners of the left and right scapula.
The fourth lumbar spinous process (L4 spinous process, hereinafter referred to as the fourth lumbar spinous process L) is a spinous process of the fourth lumbar spine L existing in a Jacoby line connecting the highest points of the left and right ilium.

According to previous studies, the line connecting the posterior superior iliac spine A and the posterior superior iliac spine P is close to horizontal, and the line connecting the posterior superior iliac spine A and the posterior superior iliac spine P. And, when the line connecting the 7th thoracic vertebra T and the 4th lumbar vertebra L is seated in a position close to a right angle and the posterior superior iliac spine P is the central axis, the continuous contraction of the abdominal lateral muscle is pulled out. Has been clarified.

FIG. 9 is a side view showing the positional relationship between the anterior superior iliac spine, the posterior superior iliac spine, the 7th thoracic vertebra, and the 4th lumbar vertebra while the user is seated.
FIG. 9A shows a state in which the user U sits on a conventional chair, and FIG. 9B shows a state in which the user U sits on the ischial catch sheet 130 of the training chair 100 of the present embodiment. There is.

As shown in FIG. 9A, when the user U sits on a conventional chair, the pelvis tilts backward, so that the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P is on the posterior side. It is tilted. The line connecting the 7th thoracic vertebra T and the 4th lumbar vertebra L intersects the line connecting the posterior superior iliac spine A and the posterior superior iliac spine P in a positional relationship close to a right angle, but the posterior superior iliac spine P Is out of the central axis, that is, the line connecting the 7th thoracic vertebra T and the 4th lumbar vertebra L, so that the continuous contraction of the abdominal lateral muscle cannot be elicited. Further, since the posterior superior iliac spine P is not on the line connecting the 7th thoracic vertebra T and the 4th lumbar vertebra L, the weight of the user U cannot be properly supported by the ischium.

On the other hand, as shown in FIG. 9B, when the user U sits on the ischial catch sheet 130 of the training chair 100 of the present embodiment, the pelvis is in the intermediate position, that is, the pelvis is upright. The line connecting the anterior superior iliac spine A and the posterior superior iliac spine P is close to horizontal.

The line connecting the 7th thoracic vertebra T and the 4th lumbar vertebra L intersects the line connecting the posterior superior iliac spine A and the posterior superior iliac spine P at a position close to a right angle, and is connected to the 7th thoracic spine T. The posterior superior iliac spine P is located on the line connecting the 4th lumbar vertebra L. Therefore, the weight of the user U can be correctly supported by the ischium, and the continuous contraction of the transverse abdominal muscle can be elicited.

FIG. 10 is a side view showing the positional relationship between the anterior superior iliac spine, the posterior superior iliac spine, the 7th thoracic vertebra, and the 4th lumbar vertebra when the lumbar control pad is used.
As shown in FIG. 10, by applying the contact portion 141 to the lumbar spine of the user U seated on the ischial catch sheet 130, the position of the lumbar spine can be guided so that the transversus abdominis muscle contracts most, and the transversus abdominis muscle further increases. The position of the most contracting lumbar spine can be maintained.

As described above, with the line connecting the posterior superior iliac spine A and the posterior superior iliac spine P approaching horizontally, the line connecting the posterior superior iliac spine A and the posterior superior iliac spine P When the line connecting the 7th thoracic vertebra T and the 4th lumbar vertebra L intersects at the posterior superior iliac spine P in a positional relationship close to a right angle, continuous contraction of the abdominal lateral muscle can be elicited.

Therefore, the lordosis of the lumbar spine is reduced by applying the contact portion 141 to the lumbar spine portion of the user U seated on the ischial catch sheet 130 and instructing the user U to push the contact portion 141 back.

In other words, by applying the contact portion 141 to the lumbar spine of the user U, the line connecting the posterior superior iliac spine A and the posterior superior iliac spine P is close to horizontal, and the posterior superior iliac spine A and the upper The line connecting the posterior superior iliac spine P and the line connecting the 7th thoracic vertebra T and the 4th lumbar vertebra L can be brought close to a positional relationship close to a right angle at the posterior superior iliac spine P.

Further, even if the lordosis of the lumbar spine becomes large due to the user U sitting on the training chair 100 for a long time, the contact portion 141 applied to the lumbar spine of the user U is urged to be pushed back to the back side. , The lordosis of the lumbar spine can be reduced.

As described above, in the training chair 100 of the present embodiment, the transversus abdominis muscle can be continuously contracted only by the user U sitting on the ischial bone catch sheet 130, and the user sitting on the ischial bone catch sheet 130. By applying the contact portion 141 of the lumbar control pad 140 to the lumbar portion of the U, the position of the lumbar spine can be guided so that the transversus abdominis muscle contracts most.

In the present embodiment, the training chair 100 provided with the ischial bone catch seat 130 and the lumbar spine control pad 140 has been described. 140 can also be attached and used.

100 Training chair 110 Front leg 111 Height scale 120 Rear leg 121 Rotating connection 130 Sit bone catch sheet 131 Height adjustment mechanism 132 Horizontal pedestal 133 Curved convex part 134 Top part 135 Divided cross section 136 Extension part 140 Lumbar control pad 141 Reliable part 142 Stay part 142C Center line 143, 145 Angle adjustment mechanism 143K Angle scale 144 Extension material A Upper anterior superior iliac spine L 4th lumbar spine P Upper posterior iliac spine T 7th thoracic spine U User

Claims (8)

In training equipment that strengthens the user's deep core muscles
A ischial catch sheet having a curved convex portion that supports the user's ischium at the zenith of the curved convex portion when seated.
A lumbar spine control pad for the user to push back at the lumbar region of the user from the posterior side while the user is seated on the ischial catch sheet.
Training equipment characterized by being equipped with. The curved surface forming the zenith is
When the user is seated, the user's pelvic tilt angle is formed with a radius of curvature sufficient to stand up in the intermediate position.
The training device according to claim 1. The ischial catch sheet is
When the user is seated, the user's pelvic tilt angle is formed of an elastic member having elasticity that can be held in an intermediate position.
2. The training device according to claim 2. The elastic member is
Being an ethylene-vinyl acetate copolymer resin,
3. The training device according to claim 3. In a training method that strengthens the user's deep core muscles
A step in which a ischial catch sheet having a curved convex portion supports the user's ischium at the zenith of the convex portion on the curved surface when seated.
A step of applying a lumbar control pad to the lumbar spine of the user from the posterior side while the user is seated on the ischial catch sheet.
The process in which the user pushes back the lumbar control pad at the lumbar region,
A training method characterized by being equipped with. In a training chair that strengthens the user's deep core muscles
A ischial catch sheet having a curved convex portion that supports the user's ischium at the zenith of the curved convex portion when seated.
A lumbar spine control pad for the user to push back at the lumbar region of the user from the posterior side while the user is seated on the ischial catch sheet.
A training chair characterized by being equipped with. A height adjustment mechanism that adjusts the height of the ischial catch sheet,
6. The training chair according to claim 6. Lumbar spine contact position adjustment mechanism that adjusts the position of the lumbar spine control pad against the lumbar spine,
6. The training chair according to claim 6.

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