JP7440901B2 - Training equipment, training methods, and training chairs - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act 1. Exam date: February 4, 2020 2. Test location: Miyota Chuo Memorial Hospital 3. Person who conducted the test: Satoshi Miyashita 4. Test Content: Satoshi Miyashita, at Miyota Chuo Memorial Hospital, spoke about a training chair invented by Satoshi Miyashita, Hideyuki Ishii, Kento Yamada, Shigeto Yamada, and Gosuke Yamada that strengthens and activates the user's deep core muscles. We conducted a performance comparison test.

The present invention relates to a training device, a training method, and a training chair, and more particularly to a training device, a training method, and a training chair that strengthen and activate the deep core muscles of a user.

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

The average life expectancy of the Japanese people, which exceeds 80 years, is one of the highest in the world, but it is also true that as the average life expectancy has increased, the number of people who are forced to spend long periods of time bedridden has also increased. It is.

For example, as calculated by the Ministry of Health, Labor and Welfare, the ``healthy life expectancy'' of a person who can live without receiving assistance or becoming bedridden was 72.14 years for men and 74.79 years for women in 2016. In other words, the number of years that men receive nursing care or are bedridden is about nine years for men and about 13 years for women, and even if average lifespans increase and people can live longer, it does not mean they can live longer in good health.

Exercise is said to be important in order to avoid becoming bedridden in the future. For example, if elderly people lose the muscle strength needed to walk, they are more likely to fall, and if they break a bone as a result of a fall, they will no longer be able to walk.

It is also said that muscle mass and healthy lifespan are proportional. As we age, muscle mass decreases, making it difficult to move the body itself, leading to a decrease in activity level. This is because a decrease in the amount of activity will further accelerate the loss of muscle mass, and eventually you will become unable to move.

In other words, in order to live a long and healthy life, it is important to form a body that can move and be active on its own for a long time, and it is necessary to maintain or increase the necessary muscle mass.
In particular, it is said that training the deep core muscles, also known as the inner muscles, is especially important in order to avoid becoming bedridden.

The muscles in the trunk, which is the torso part of the human body excluding the limbs and head, are called trunk muscles. Deep core muscles are the muscles that exist deep within the body that stabilize the core and contribute to smooth movement of the limbs.

Due to the activity of these deep core muscles, when a person loses their balance, the hands can minimize damage to the body and protect it, and the feet can take a step to restore balance. There is.

The vertebral column is the only bone that connects the upper body, including the head, and the pelvis, and there is no skeleton between the rib cage and pelvis. The deep core muscles that play a role in stabilizing the spinal column between the rib cage and pelvis, where this skeleton does not exist, are the transversus abdominus and multifidus.

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

Deep core muscles are muscles that exist deeper than superficial muscles. Although we do not consciously move our deep core muscles in our daily lives, the deep core muscles are the first muscles that are activated in every situation of daily life. For example, when you lift something, your brain determines whether the object is heavy or light. By moving your deep core muscles, you can support your body, and by using your superficial muscles to generate a force that matches the weight of the object, you can lift the object.

For this reason, when the muscle mass and activity level of deep core muscles decrease, it becomes difficult to support the body, making it easier to lose balance or fall. The tendency to trip and fall as we age is often due to a decline in the activity of our deep core muscles.

Generally, in order to train the abdominal muscles, one known training method is sit-up exercise, which trains the abdominal muscles by repeatedly raising the upper body from a supine position.

However, raising the upper body from a supine position is extremely difficult for elderly people and people with lower back disease. Therefore, a training device has been developed that can strengthen the abdominal back muscles with easy movements without putting a burden on the lower back (for example, see Patent Document 1).

In the training device disclosed in Patent Document 1, a movable body held between the user's legs is pivotably attached to a base, and the base is rotatable relative to a seat plate on which the user sits. At the same time, a means for applying a resistance force to the movable body in the swinging direction is interposed between the movable body and the base, such as an elastic member such as rubber or a spring, or a member using hydraulic pressure. There is.

As a result, the user repeatedly tilts the knee to the left or right while holding the movable body, which has generated resistance due to various means such as the tension of the elastic member, hydraulic pressure, pneumatic pressure, or friction, between both legs, thereby causing abdominal pain. It can strengthen not only the upper, middle, and lower rectus muscles, but also the core muscles of the body, such as the external obliques, internal obliques, transverse abdominis, erector spinae, and iliopsoas.

Japanese Patent Application Publication No. 2005-342177

However, the training device disclosed in Patent Document 1 strengthens the muscles around the abdomen by moving the muscles that exist on the surface of the abdomen. There was a problem in that it was not possible to efficiently strengthen the transverse muscles.

As mentioned above, the transversus abdominis muscle is located deep in the lower back and is a muscle that stabilizes the spine by contracting before moving the limbs. For this reason, the transversus abdominis is an important muscle for supporting the body.

However, unlike superficial muscles, the transversus abdominis muscle is a muscle that is difficult to contract consciously, so even if the training device disclosed in Patent Document 1 is used, it is not possible to contract and strengthen the transverse abdominis muscle. There's a problem.

In order to contract the transversus abdominis muscle, for example, the pelvic floor muscles can be contracted to stop urinating midway through urination, or the abdomen can be contracted. However, just as the muscle contraction that occurs when you stop urinating midway through urination is instantaneous, it is not possible to consciously and continuously contract the transversus abdominis muscle. For this reason, it is not possible to consciously and continuously contract the transverse abdominis muscle to strengthen the transverse abdominis muscle.

In other words, even if you use the training device disclosed in Patent Document 1, you cannot consciously contract and strengthen the transversus abdominis muscle, and even if you consciously try to contract the transverse abdominis muscle in daily life, However, the transversus abdominis muscle could not be effectively strengthened because it is instantaneous and cannot 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, which is one of the deep core muscles important for supporting the body. The purpose is to provide.

In order to solve the above problem, the present invention provides a training device for strengthening the deep core muscles of the user, in which the zenith of the curved convex portion is applied when the user is seated. a ischial catch seat having a curved convex portion that supports the user's ischial bones; and with the user seated on the ischial catch seat, the user applies the seat to the user's lumbar region from the rear side; A training device is provided, characterized in that it includes a lumbar control pad for pushing back.

As a result, the ischial catch seat having a curved convex part supports the user's ischial bones at the zenith of the curved convex part when the user is seated, and when the user is seated on the ischial catch seat, the user's ischial bone is The user pushes back the lumbar control pad applied to the lumbar region with the lower back.

By aligning the user's ischial bones with the zenith of the curved convex portion of the ischial catch seat, the seated user stands up with an intermediate pelvic inclination angle, and the user's ischial bones can support the user's weight. By seating the user in such a posture that the body weight is supported by the ischial bones, the user sits with the transversus abdominis muscles contracted.

In addition, while the user is seated on the ischial catch seat, the lumbar control pad is applied to the user's lumbar region from behind, and the user pushes back on the lumbar control pad with the lower back, thereby minimizing the lordosis of the lumbar vertebrae. This causes the transversus abdominis muscle to contract further.

The present invention also provides a training method for strengthening the deep core muscles of a user, including the step of supporting the user's ischial bones at the zenith of the curved convex portion when the user is seated. , a step of applying a lumbar control pad to the lumbar region of the user from the rear side while the user is seated on the ischial catch seat; and a step of the user pushing back the lumbar control pad with the lumbar region. A training method is provided.

As a result, the ischial catch seat having a curved convex part supports the user's ischial bones at the zenith of the convex part on the curved surface when the user is seated, and when the user is seated on the ischial catch seat, the user's ischial bone is A lumbar control pad is placed on the lumbar region, and the user pushes back on the lumbar control pad with his or her lower back.

By aligning the user's ischial bones with the zenith of the curved convex portion of the ischial catch seat, the seated user stands up with an intermediate pelvic inclination angle, and the user's ischial bones can support the user's weight. By seating the user in such a posture that the body weight is supported by the ischial bones, the user sits with the transversus abdominis muscles contracted.

In addition, while the user is seated on the ischial catch seat, the lumbar control pad is applied to the user's lumbar region from behind, and the user pushes back on the lumbar control pad with the lower back, thereby minimizing the lordosis of the lumbar vertebrae. This causes the transversus abdominis muscle to contract further.

In addition, the present invention provides a training chair that strengthens the deep core muscles of the user.
an ischial catch seat having a curved convex portion that supports the user's ischial bones at the zenith of the curved convex portion when the user is seated; A training chair is provided, comprising a lumbar control pad that is applied to the lumbar region and allows the user to push back with the lumbar region.

As a result, the ischial catch seat having a curved convex part supports the user's ischial bones at the zenith of the curved convex part when the user is seated, and when the user is seated on the ischial catch seat, the user's ischial bone is The user pushes back the lumbar control pad applied to the lumbar region with the lower back.

By aligning the user's ischial bones with the zenith of the curved convex portion of the ischial catch seat, the seated user stands up with an intermediate pelvic inclination angle, and the user's ischial bones can support the user's weight. By seating the user in such a posture that the body weight is supported by the ischial bones, the user sits with the transversus abdominis muscles contracted.

In addition, while the user is seated on the ischial catch seat, the lumbar control pad is applied to the user's lumbar region from behind, and the user pushes back on the lumbar control pad with the lower back, thereby minimizing the lordosis of the lumbar vertebrae. This causes the transversus abdominis muscle to contract further.

According to the training device, training method, and training chair of the present invention, with the user seated on the curved convex portion of the ischial catch seat, the lumbar control pad is applied from the rear side to the lumbar region of the user, The user pushes back on the lumbar control pad with his or her lower back, which has the following effects.

First, by sitting on the curved convex portion of the ischial catch seat, the user stands up with an intermediate pelvic inclination angle, and the user can sit with the transversus abdominis muscle contracted. This allows the user to continuously contract the transversus abdominis muscle simply by sitting on the ischial catch seat.

Furthermore, when the user stands up with the user's pelvic tilt angle at an intermediate position using the ischial catch seat, the user pushes back with the lower back the lumbar control pad applied to the user's lumbar region, thereby reducing the lordosis of the lumbar vertebrae. Since the transversus abdominis muscle can be brought into a more contracted state, the strength of the transversus abdominis muscle contraction can be adjusted by the strength with which the lumbar control pad is pushed back.

This allows the user to continue contracting the transversus abdominis muscle by simply pushing back on the lumbar control pad and sitting on the ischial catch seat, which places a sustained load on the transversus abdominis muscle and further causes the transversus abdominis muscle to contract. By strengthening and weakening the muscles, you can efficiently strengthen the transversus abdominis muscle.

It is a perspective view showing a training chair concerning this embodiment. It is a side view showing the training chair concerning this embodiment. FIG. 3 is a perspective view showing details of the ischial catch sheet. FIG. 3 is a side view showing details of the lumbar control pad. FIG. 3 is a side view showing a user seated on a training chair. FIG. 2 is a side view showing details of a human pelvis. It is an ultrasound photograph comparing the abdominal muscles when they are relaxed and when they are contracted. It is a back view of a human body showing the location of the seventh thoracic vertebra spinous process and the fourth lumbar vertebra spinous process. FIG. 7 is a side view showing the positional relationship between the anterior superior iliac spine, the posterior superior iliac spine, the seventh thoracic vertebra, and the fourth lumbar vertebra when the user is seated. FIG. 7 is a side view showing the positional relationship between the anterior superior iliac spine, the posterior superior iliac spine, the seventh thoracic vertebra, and the fourth lumbar vertebra when the lumbar control pad is used.

Embodiments of the present invention will be described in detail below 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 section 110, a rear leg section 120, an ischial catch seat 130, and a lumbar control pad 140.

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

By rotating the rear leg portion 120 in the closing direction about the rotational connection portion 121, the rear leg portion 120 is folded. By freely folding the rear legs 120, the training chair 100 can be easily carried.

The ischial catch seat 130 is fixed to the front leg section 110 via a height adjustment mechanism 131 that adjusts the height of the ischial catch seat 130. Adjustable and fixed at any height.

Examples of the height adjustment mechanism 131 include a method of fixing the position on the front leg part 110 by tightening a bolt on the front leg part 110, a pipe holder that fixes the position on the front leg part 110 with a force that pinches the front leg part 110, and the like. It will be done.

Due to the function of the height adjustment mechanism 131, the ischial catch seat 130 can be fixed at an arbitrary height of the front leg portion 110, so the height of the ischial catch seat 130 can be adjusted according to the body shape of the user U. can.

The ischial catch seat 130 is a seat on which a user U (not shown) is seated, and is shaped so that the body weight of the user U can be supported by the ischia 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 made of an elastic member having elasticity. The ischial catch sheet 130 is installed with the divided cross section of the cylinder as the bottom surface when the cylinder is divided, and the user U is seated with his or her ischial bones aligned with the top of the semi-cylindrical shape.

When the user U sits on this ischial catch seat 130, the pelvis of the seated user U stands up. Thereby, the weight of the user U can be supported by the erect sitting bones.

In this way, by sitting in a position where the user U's pelvis is erect and the user's sitting bones support the body weight, the user U can sit with the transversus abdominis muscles contracted, as will be 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. In other words, the user U can efficiently strengthen and activate the transversus abdominis muscles simply by sitting on the training chair 100.

The seat of a commonly manufactured chair is formed low on the rear side so that the seat is tilted backwards. This is because when user U sits on a seat that is tilted backwards, user U's pelvis tilts backwards to match the seat surface that tilts backwards, and user U's pelvis tilts backwards. The U core muscles, especially the abdominal muscles, relax. By relaxing the trunk muscles of the user U who is seated on the seat that is tilted back, the user U can relax and sit on the chair.

In this way, by tilting the seat of the chair backwards, the seated user U can relax, so conference room chairs and chairs for executive officers are tilted further back than general office chairs. By increasing the angle of inclination, you can sit more comfortably.

However, since the pelvis of the user U who sits on this rearward tilted seat surface tilts backward, the trunk muscles including the transversus abdominus muscles become relaxed. Therefore, the transversus abdominis muscle cannot be continuously contracted. In other words, you cannot train your transverse abdominis muscles even if you sit on a seat that is tilted back.

User U, who sits on a seat tilted further back, must maintain a sitting position with his core muscles relaxed, so instead of supporting his weight with his pelvis, he uses his gluteus maximus and other muscles to support his body weight. By tensing the superficial muscles of the buttocks, a sitting position can be maintained.

When user U uses a chair with a seat surface tilted backwards over a long period of time, user U's superficial muscles such as the gluteus maximus tighten, thereby maintaining or increasing muscle mass, but the transversus abdominis The deep core muscles such as the 1st and 3rd core muscles remain relaxed, resulting in a decrease in muscle activity.

As a result, the balance between the superficial muscles and deep core muscles is disrupted, and the activity of the deep core muscles decreases, making it unstable to support the body, making it easier to lose your posture, and causing lower back pain. , you may end up falling.

Therefore, in the training chair 100 of this embodiment, the pelvis is erected simply by the user U sitting on the forward-leaning ischial catch seat 130, and by erecting the pelvis, the body weight is supported by the ischial bones, that is, the user U is seated in the correct posture. be able to.

Thereby, 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. This allows you to slowly apply a load to the transversus abdominis muscle with continuous force, rather than an exercise that repeats instantaneous movements, allowing you to efficiently train the transversus abdominis muscle, which is a deep core muscle.

The lumbar control pad 140 is a pad for applying to the lumbar region of the user U seated on the ischial catch seat 130, and includes a contact portion 141 for contacting the lumbar region of the user U, and a contact portion extending from the contact portion 141. A stay part 142 for supporting the part 141, an angle adjustment mechanism 143 that adjusts the abutment part 141 and the stay part 142 to an arbitrary angle are provided.

The abutment part 141 and the stay part 142 are fixed to the front leg part 110 or an extension member 144 extended from the front leg part 110 via an angle adjustment mechanism 143 that adjusts the angle of the abutment part 141 and the stay part 142. Due to the function of the adjustment mechanism 143, the abutment part 141 and the stay part 142 are fixed so as to be adjustable at any angle from the front leg part 110 or the extension member 144.

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

Note that an angle adjustment mechanism 145 (not shown) may be provided between the abutment part 141 and the stay part 142 as well, which makes it possible to adjust the angle between the abutment part 141 and the stay part 142. By the functions of the angle adjustment mechanism 143 and the angle adjustment mechanism 145, the position and orientation of the abutment part 141 can be freely adjusted, and the abutment part 141 can be applied to the lumbar vertebrae according to the body shape of the user U.

By applying the contact part 141 to the lumbar vertebrae of the user U seated on the ischial catch seat 130, the position of the lumbar vertebrae can be guided so that the transversus abdominis muscle is most contracted, as will be described later.
Normally, the human lumbar vertebrae curve forward and have a lordotic shape. Furthermore, when a patient is instructed to "take a good posture," the lordotic lumbar vertebrae tend to become even more lordotic.

Therefore, by applying the abutting part 141 to the lumbar vertebrae of the user U seated on the ischial catch seat 130 and instructing the user U to push the abutting part 141 back, the lordosis of the lumbar vertebrae is reduced. This allows the position of the lumbar vertebrae to be guided so that the transversus abdominis muscle contracts the most.

As described above, in the training chair 100 of the present embodiment, the user U can continuously contract the transversus abdominis muscle simply by sitting on the ischial catch seat 130, and the user U who is seated on the ischial catch seat 130 can By applying the contact part 141 of the lumbar vertebrae control pad 140 to the lumbar region of U, the position of the lumbar vertebrae can be guided so that the transversus abdominis muscle is most contracted.

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

In addition, not only disabled people but also athletes and elderly people can train their transverse abdominis muscles by simply sitting on the training chair 100, so they can train their transverse abdominis muscles in their daily lives.

In this way, the training chair 100 can easily train the transversus abdominis muscles of various users U, from people with disabilities to athletes, thereby preventing injuries and falls caused by losing posture due to decreased activity of the transverse abdominis muscles. This can help prevent bedriddenness in the future.

Furthermore, by easily training the transversus abdominis muscles with the training chair 100, it is possible to prevent bedriddenness or nursing care due to falls, and contribute to extending healthy life expectancy, so that the user can enjoy living a long life.

Furthermore, by training the transversus abdominis muscles using the training chair 100 and extending a healthy lifespan, it is possible to save on medical and nursing care costs, which are increasing as the population ages. As a result, it is possible to suppress increases in health insurance premiums, increases in patient costs due to revisions to medical fees, and increases in the proportion of elderly people who pay out-of-pocket medical expenses.

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

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

When the user U sits on this ischial catch seat 130, the pelvis of the seated user U stands up. Thereby, the weight of the user U can be supported by the erect sitting bones.

The front leg portion 110 to which the height adjustment mechanism 131 is attached is provided with a height scale 111 that allows the user to easily determine the fixed position of the height adjustment mechanism 131. The height scale 111 is, for example, a scale line marked at equal intervals on the front leg portion 110 or a numerical value attached to the scale line.

The height of the ischial catch sheet 130 is adjusted according to the body shape of the user U, the user U memorizes the value displayed on the height scale 111, and the height of the ischial catch sheet 130 is adjusted according to the memorized value. By adjusting this, even when the training chair 100 is shared by a plurality of users U, it is possible to easily reproduce the height of the ischial catch seat 130 that suits the user's body shape.

In addition, by providing height scales 111 in the same way on the left and right front leg parts 110, when adjusting the height of the ischial catch seat 130, the height can be adjusted while looking at the height scales 111. The horizontal pedestal 132 can be adjusted to be horizontal by matching the height.

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

The ischial catch sheet 130 is made of, for example, ethylene-vinyl acetate copolymer resin called EVA (Ethylene Vinyl Acetate Copolymer) resin, polyethylene resin, etc. EVA resin has elasticity, flexibility, toughness, and bass retention properties. It has properties such as weather resistance.

Compared to urethane resins used in low-resilience pillows, EVA resin does not have the flexibility to sink when a load is applied, but has the elasticity to the extent that it dents slightly when a load is applied. .

Therefore, the ischial catch seat 130 can support the ischial bones of the user U at the zenith portion 134 formed on the semi-cylindrical curved convex portion 133 without significantly deforming the shape even when the user U is seated. With its moderate flexibility, it won't hurt your buttocks even when sitting for long periods of time.

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

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

By aligning the user U's ischial bones with the zenith portion 134, which is the zenith of the curved surface, and sitting on the ischial catch seat 130, the user U can sit on the ischial catch seat 130, instead of being supported by the surface like when sitting on a conventional flat seat chair. Unlike this, the ischial catch sheet 130 supports the ischial bones at points, allowing the ischial bones to stand up and the transverse abdominis muscles to contract.

Note that the height of the curved convex portion 133 and the size of the curved surface forming the zenith portion 134 can be set arbitrarily. However, if the curved surface of the curved convex portion 133 is made too large, that is, the diameter of the curved convex portion 133 is made too large, the entire buttocks will be supported by the curved convex portion 133, making it impossible for the user U to support the body weight with the sitting bones. Put it away. For this reason, it is preferable that the radius of curvature of the curved surface forming the zenith portion 134 is sufficient to allow the user's pelvis to stand in an intermediate position.

The radius of curvature of the curved surface forming the zenith portion 134 can be arbitrarily set depending on the size and height of the body, and for example, the radius of curvature may be approximately 75 mm for an adult and approximately 60 mm for a child.

Further, an extending portion 136 may be formed by extending the divided section 135 side of the semi-cylindrical curved convex portion 133 in the depth direction. Specifically, an extending portion 136 having a thickness of 15 mm is formed on one side of the divided cross section 135 of the semi-cylindrical curved convex portion 133 so that the total length of the divided cross section 135 of the semi-cylindrical curved convex portion 133 is 205 mm. is formed.

By forming the extended portion 136 continuously in the depth direction of the curved convex portion 133, the depth of the ischial catch sheet 130 is increased, and the extended portion 136 can be used to attach the buttocks when not training deep core muscles. By sitting together, the user can relax and sit on the ischial catch seat 130.

Furthermore, by forming the ischial catch seat 130 to have a curved surface from the top to the bottom, the user U who is seated on the ischial catch seat 130 can sit on the ischial catch seat 130 from the buttocks to the thighs without feeling discomfort.

Further, although EVA resin and polyethylene resin have appropriate elasticity, they have low durability, so the semi-cylindrical curved convex portion 133 and the extended portion 136 may be covered with a cover member.

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

Thereby, the position and orientation of the abutting part 141 can be freely adjusted, and the abutting part 141 can be applied to the lumbar vertebrae in a direction that matches the user's U body shape.

Further, the angle adjustment mechanism 143 or the angle adjustment 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 adjustment mechanism 145 is, for example, an angle line marked at a uniform angle on the side surface of the angle adjustment mechanism 145, or a numerical value attached to the angle line. 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 understood as the adjustment angle.

The user U adjusts the angle of the lumbar control pad 140 according to the body shape of the user U, memorizes the angle displayed on the angle scale 143K and the center line 142C, and adjusts the lumbar control pad 140 according to the memorized angle. By adjusting the angle, even when the training chair 100 is shared by a plurality of users U, it is possible to easily reproduce the angle of the lumbar control pad 140 that suits the user's body shape.

Further, the angle adjustment mechanism 143 has an angle holding force that is a resistance force that does not change the angle when the user U pushes back the lumbar vertebrae. Thereby, even if the user U pushes back the lumbar vertebrae, the adjustment angle of the lumbar vertebrae control pad 140 does not change.
Note that the abutting portion 141 is preferably formed of a soft material such as urethane foam so that the user U does not feel pain when pushing back on the lumbar vertebrae.

FIG. 5 is a side view showing the user seated on the training chair.
As shown in FIG. 5, when the user U sits on the training chair 100, the ischial catch seat 130 deforms so as to be crushed by the weight of the user U, thereby supporting the weight of the user U with the ischia. You can understand it yourself.

In addition, the ischial catch seat 130 is provided with a zenith portion 134 formed in a semi-cylindrical curved convex portion 133 on which the user U's ischial bones are seated together, so that the seated user U is in a forward leaning posture. User U's pelvis stands up. Thereby, the weight of the user U can be supported by the erected sitting bones, and the transversus abdominis muscle can be continuously contracted.

In addition, by applying the abutting part 141 to the lumbar vertebrae of the user U seated on the ischial catch seat 130, and taking a posture in which the user U pushes back on the abutting part 141, the lordosis of the lumbar vertebrae becomes smaller and the abdominal lumbar vertebrae become smaller. This can lead to a position in the lumbar spine where the transverse muscles can contract the most.

As a result, the user U can continuously contract the transverse abdominis muscle simply by sitting on the training chair 100, and can efficiently train the transverse abdominis muscle. Furthermore, by adjusting the force with which the user U pushes back the abutting portion 141, the strength with which the transversus abdominis muscle contracts can be adjusted. Therefore, it is possible to strengthen and weaken the contraction of the transversus abdominis muscle, which has been considered difficult in the past, and to achieve sustained muscle contraction, and it is possible to strengthen the transversus abdominis muscle more efficiently.

FIG. 6 is a side view showing details of the human pelvis.
As shown in FIG. 6, the pelvis is made up of a left and right pair of ilium, ischium, and hip bones (not shown here), which are made up of pubic bones, sacrum, and coccyx. The junction of the ischium, ilium, and pubic bone connects with the femur to form the hip joint.

The tensor fasciae latae and sartorius muscles (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 A). A protrusion is formed on the surface. Further, on the rear side of the ilium, a posterior superior iliac spine PSIS (Posterior Inferior Iliac Spine, hereinafter referred to as P), which is a protrusion protruding backward, is formed.

By looking at the positional relationship between the anterior superior iliac spine A and the posterior superior iliac spine P, it is possible to grasp the degree of inclination of the pelvis. For example, if the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P is approximately horizontal, the pelvis can be considered to be in an intermediate position, that is, the pelvis is erect.
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 forward. be able to.

In addition, if the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P is tilted posteriorly, as mentioned above, if you are sitting on a commonly manufactured chair with a rearward tilting seat, etc. Although you can sit in a chair and relax, you cannot train your core muscles, especially your abdominal muscles, the transversus abdominis.

Also, if the pelvis continues to tilt backwards, the spine will curve backwards, resulting in a hunchback-like posture. Rounding your back puts more strain on the muscles around your neck that support your head, which can lead to symptoms such as stiff shoulders and back pain.

In other words, the correct posture when sitting, that is, a posture that places less strain on the body, is preferably a state in which the pelvis is erect and the body weight can be supported by the sitting bones. In other words, it is preferable that the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P become horizontal.

In the training chair 100 of this embodiment, when the user U is seated on the ischial catch seat 130, the user's U's ischial weight is supported by the zenith portion 134 of the curved convex portion 133 of the ischial catch seat 130. When the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P approaches the horizontal position, the pelvis is in an intermediate position, that is, the pelvis is erect.

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

In other words, it can be seen that when the user U sits on the ischial catch seat 130, the pelvis rises and the body weight is supported by the ischial bones, causing the transverse abdominis muscles to contract. Thereby, the user U seated on the training chair 100 can contract the transversus abdominis muscle by sitting, and can maintain the contracted state of the transverse abdominis muscle as long as the user continues to sit.

Training that requires continuous muscle contraction can be performed simply by sitting on the training chair 100, so you can train the transversus abdominis muscles, which are among the deep core muscles, as part of your daily life, such as while watching TV, talking, or reading a book. Can be easily trained.

FIG. 8 is a rear view of a human body showing the locations of the seventh thoracic spinous process and the fourth 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 vertebra spinous process (T7 spinous process, hereinafter referred to as 7th thoracic vertebra T) is a spinous process of the 7th thoracic vertebra T that exists in a line connecting the lower corners of the left and right scapulae.
Further, the spinous process of the fourth lumbar vertebra (L4 spinous process, hereinafter referred to as the fourth lumbar vertebra L) is a spinous process of the fourth lumbar vertebra L that exists in a Jacobian line connecting the highest points of the left and right iliac bones.

Previous research has shown that when the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P approaches the horizontal line, the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P If you sit with the line connecting the 7th thoracic vertebra T and the 4th lumbar vertebra L at a nearly right angle, and with the posterior superior iliac spine P as the central axis, you will be able to elicit a sustained contraction of the transversus abdominis muscle. has become clear.

FIG. 9 is a side view showing the positional relationship between the anterior superior iliac spine, the posterior superior iliac spine, the seventh thoracic vertebra, and the fourth lumbar vertebra when the user is seated.
9(A) shows a state in which the user U is sitting on a conventional chair, and FIG. 9(B) shows a state in which the user U is seated on the ischial catch seat 130 of the training chair 100 of the present embodiment. There is.

As shown in FIG. 9(A), when user U sits on a conventional chair, the pelvis tilts posteriorly, so the line connecting anterior superior iliac spine A and posterior superior iliac spine P moves posteriorly. It is sloping. The line connecting the 7th thoracic vertebra T and the 4th lumbar vertebra L intersects the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P at almost a right angle, but the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P Since this position is deviated from the central axis, that is, the line connecting the seventh thoracic vertebra T and the fourth lumbar vertebra L, sustained contraction of the transversus abdominis muscle cannot be elicited. Furthermore, since there is no posterior superior iliac spine P on the line connecting the seventh thoracic vertebra T and the fourth lumbar vertebra L, the weight of the user U cannot be supported correctly by the ischial bones.

On the other hand, as shown in FIG. 9(B), when the user U sits on the ischial catch seat 130 of the training chair 100 of this embodiment, the pelvis is in an intermediate position, that is, the pelvis is erect. The line connecting the anterior superior iliac spine A and the posterior superior iliac spine P becomes nearly horizontal.

Furthermore, the line connecting the seventh thoracic vertebra T and the fourth lumbar vertebra L intersects the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P at a nearly right angle, and the line connecting the seventh thoracic vertebra T and The posterior superior iliac spine P is located on the line connecting the fourth lumbar vertebra L. Therefore, the user U's weight can be properly supported by the ischial bones, and the transversus abdominis muscle can be continuously contracted.

FIG. 10 is a side view showing the positional relationship between the anterior superior iliac spine, the posterior superior iliac spine, the seventh thoracic vertebra, and the fourth lumbar vertebra when the lumbar control pad is used.
As shown in FIG. 10, by applying the contact part 141 to the lumbar region of the user U seated on the ischial catch seat 130, the position of the lumbar vertebrae can be guided so that the transversus abdominis muscle is most contracted, and the transversus abdominis muscle is further It is possible to maintain the position of the lumbar vertebrae that is most contracted.

As mentioned above, when the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P becomes nearly horizontal, the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P By sitting so that the line connecting the seventh thoracic vertebra T and the fourth lumbar vertebra L intersect at a nearly right angle at the posterior superior iliac spine P, sustained contraction of the transversus abdominis muscle can be elicited.

Therefore, by applying the abutting part 141 to the lumbar vertebrae of the user U seated on the ischial catch seat 130 and instructing the user U to push the abutting part 141 back, the lordosis of the lumbar vertebrae is reduced.

In other words, by applying the contact part 141 to the lumbar region of the user U, the line connecting the anterior superior iliac spine A and the posterior superior iliac spine P becomes nearly horizontal, and the anterior superior iliac spine A and the superior The line connecting the posterior iliac spine P and the line connecting the seventh thoracic vertebra T and the fourth lumbar vertebra L can be brought into a nearly right-angled positional relationship at the posterior superior iliac spine P.

Furthermore, even if the lordosis of the lumbar vertebrae increases due to the user U sitting on the training chair 100 for a long period of time, the system can encourage the user U to push back the contact part 141 placed on the lumbar vertebrae. , the lordosis of the lumbar vertebrae can be reduced.

As described above, in the training chair 100 of the present embodiment, the user U can continuously contract the transversus abdominis muscle simply by sitting on the ischial catch seat 130, and the user U who is seated on the ischial catch seat 130 can By applying the contact part 141 of the lumbar vertebrae control pad 140 to the lumbar region of U, the position of the lumbar vertebrae can be guided so that the transversus abdominis muscle is most contracted.

In this embodiment, the training chair 100 has been described as including the ischial catch seat 130 and the lumbar control pad 140, but the ischial catch seat 130 is fixed to the seat of a chair in hand, and the lumbar control pad is attached to the backrest or the like. 140 can also be attached and used.

100 Training chair 110 Front leg section 111 Height scale 120 Back leg section 121 Rotation connection section 130 Ischial catch seat 131 Height adjustment mechanism 132 Horizontal pedestal 133 Curved convex section 134 Zenith section 135 Divided section 136 Extension section 140 Lumbar control pad 141 Abutment part 142 Stay part 142C Center line 143, 145 Angle adjustment mechanism 143K Angle scale 144 Extension member A Anterior superior iliac spine L 4th lumbar vertebra P Posterior superior iliac spine T 7th thoracic vertebra U User

Claims (8)

In training equipment that strengthens the user's deep core muscles,
an ischial catch seat having a semicircularly curved convex portion that supports the lower part of the user's ischial bones at the zenith of the semicircularly curved convex portion when the user is seated;
By applying the ischial catch seat to the lumbar region of the user seated from the rear side, the user's back is supported in a nearly vertical posture, and the lumbar vertebrae resist the force pushed by the user with the lumbar region. control pad and
A training device characterized by comprising: The curved surface forming the zenith portion is
When the user is seated, the pelvic tilt angle of the user is formed with a radius of curvature sufficient for the user to stand up in an intermediate position;
The training device according to claim 1, characterized in that: The ischial catch sheet is
formed of an elastic member having elasticity that can maintain the user's pelvic inclination angle at an intermediate position when the user is seated;
The training device according to claim 2, characterized in that: The elastic member is
Being an ethylene/vinyl acetate copolymer resin,
The training device according to claim 3, characterized in that: In a training method that strengthens the user's deep core muscles,
a step in which the ischial catch seat having a convex portion on a semicircular curved surface supports the lower part of the user's ischial bones at the zenith of the convex portion on the semicircular curved surface when sitting;
a step in which a lumbar control pad is applied from the rear side to the lumbar region of the user seated on the ischial catch seat , so that the user's back is supported in a posture close to vertical ;
a step in which the lumbar control pad counteracts the force applied by the user with his or her lower back ;
A training method characterized by comprising: In a training chair that strengthens the user's deep core muscles,
an ischial catch seat having a semicircularly curved convex portion that supports the lower part of the user's ischial bones at the zenith of the semicircularly curved convex portion when the user is seated;
By applying the ischial catch seat to the lumbar region of the user seated from the rear side, the user's back is supported in a nearly vertical posture, and the lumbar vertebrae resist the force pushed by the user with his or her lower back. control pad and
A training chair comprising: a height adjustment mechanism that adjusts the height of the ischial catch seat;
7. The training chair according to claim 6, comprising: a lumbar vertebrae position adjustment mechanism that adjusts the position of the lumbar vertebrae control pad on the lumbar region ;
7. The training chair according to claim 6, comprising: