JP7395781B1 - Health equipment and health equipment sets - Google Patents

Abstract

[Problem] Intermittent traction of the knee joint, knee joint bending and stretching exercise, quadriceps muscle training, and calf massage are performed at the same time, and the synergistic effect of these exercises improves and prevents symptoms of knee joint diseases, and also limits the places where it can be used. To provide a health appliance and a health appliance set that are difficult to receive and are inexpensive. SOLUTION: The health appliance 1 of the present invention is used by being hooked onto a convex corner 101 of a step 100. The health appliance includes a main body 10 and a locking part 20 that hangs down from the front end of the main body. It is used by hooking the concave corner 30 formed by the rear surface of the part onto the convex corner. The health appliance of the present invention is small, inexpensive, does not take up much space, and is not subject to restrictions on where it can be used. In addition, by repeatedly moving the left and right toes up and down, it is possible to perform intermittent traction of the knee joint, bending and stretching the knee joint, quadriceps muscle training, and calf massage at the same time. [Selection diagram] Figure 2

Description

The present invention simultaneously performs intermittent traction of the knee joint, bending and stretching the knee joint, quadriceps muscle training, and calf massage, and the synergistic effect of these exercises improves and prevents symptoms of knee joint diseases, and also limits the use of the knee joint. The present invention relates to health appliances and health appliance sets that are difficult to receive and are inexpensive.

It is known that traction on the lower limbs has a certain therapeutic effect on movement disorders such as knee osteoarthritis, hip osteoarthritis, and ankle osteoarthritis (Non-patent Documents 1 to 4). The symptom-improving effects of knee joint bending and stretching exercises and quadriceps muscle training are described in Non-Patent Document 5.
Patent Documents 1 and 2 disclose devices for treating the above-mentioned movement disorders, and various devices have also been developed that aim not only at lower limb therapeutic effects but also at training and massage effects. .
The inventor of the present application has developed and obtained a patent for a lower limb traction device that can obtain a large traction force, is easy to adjust the traction force and carry, is not subject to restrictions on the place of use, and is inexpensive (Patent Document 3).

Tamotsu Nakai, Takeo Suzuki et al., Physical Therapy Vol. 19, No. 5, pp. 471-475 (1992) Daisuke Ogawa, Hitoshi Takei, et al., Physical Therapy Vol. 39, No. 2, pp. 102-109 (2012) Harumi Sato Physical Therapy Volume 23 Special Issue of Academic Society (31st Aichi) 1996 Kano Mitani, Masato Shimizu Physical Therapy Volume 24 Special Issue of the Society (32nd Saitama) 1997 Written by Hiroshi Ikeda, Juntendo Medical, Vol. 54, No. 3, pp. 367-371 (2008)

Japanese Patent Application Publication No. 2008-100025 Utility model registration No. 3134708 Patent No. 6946590

However, the techniques disclosed in Patent Documents 1 and 2 above have the following problems.
In both cases, the device is attached to the lower leg while the user is sitting or lying on the floor, and the problem is that the device is large and takes up a lot of space, and can only be used in a clean place where it is possible to sit or sleep. It is difficult to obtain sufficient traction force because the user pulls it with his or her arm, and it is difficult for the user to adjust the traction force himself.
In addition, the technology disclosed in Patent Document 3 above is for pulling only one leg, and it is not possible to pull both legs at the same time.Since the technology disclosed in Patent Document 3 is used while standing with one leg fixed, there is a risk of falling and getting injured, resulting in an unstable posture. This poses a problem in that it is difficult for people with weak legs to use, it is impossible to bend and straighten the knee joint at the same time, and it is difficult to perform traction exercises at the same time as watching TV or reading.

In consideration of these problems, the present invention simultaneously performs intermittent traction of the knee joint, bending and stretching the knee joint, quadriceps muscle training, and calf massage, and uses these synergistic effects to improve and prevent symptoms of knee joint diseases. It is an object of the present invention to provide a health appliance and a health appliance set that are not subject to restrictions on the place of use and are inexpensive.

The health appliance of the present invention is a health appliance that is used by being hooked to the corner of a convex part of a step, and includes a main body made of a material with no cushioning properties , and a locking part that hangs down from the front end of the main body, The upper surface of the main body part continues to rise from the front end to the rear end, and the front end and the rear end are formed of an inclined surface with roundness , and the recessed corner formed by the lower surface of the main body part and the rear surface of the locking part is The device is used by being hooked onto the corner of the convex portion and by placing the calf on the slope so that the user's feet are positioned forward, and the angle of the slope with respect to the lower surface is in the range of 15° to 25°, It is characterized in that the longitudinal width of the inclined surface is greater than 5 cm and smaller than 15 cm .

The health equipment set of the present invention is a health equipment set consisting of the above-mentioned health equipment and a bottom plate, and the bottom plate includes a horizontal plate extending in the horizontal direction and a support structure for maintaining the horizontal state of the horizontal plate. The health appliance is used by hooking the concave corner of the health appliance onto the convex corner of the step formed at the front end of the horizontal plate.
Further, at least the health appliance and the horizontal plate are integrated.

The health appliance of the present invention is used by being hooked onto the corner of a convex part of a step, and is small and inexpensive, does not take up much space, and can be used by using a nearby step.
In addition, by repeatedly moving the left and right toes up and down, it is possible to perform intermittent traction of the knee joint, bending and stretching the knee joint, quadriceps muscle training, and calf massage at the same time.
Further, by adjusting the range in which the user moves the left and right toes up and down, the traction force generated in the knee joint can be easily adjusted, and furthermore, the traction force can be generated in both the left and right knees at the same time.
In addition, since it can be used while sitting, there is no risk of injury such as falling, and even people with weak legs can easily use it.

The health equipment set of the present invention can be used while sitting on a chair or lying on one's back, so there is no risk of injury such as falling, and even people with weak legs can use it easily.
Furthermore, by using the floor plate, traction exercises for the knee joint can be easily performed even in places where the floor surface is dirty, such as outdoors.
In addition, traction exercises can be performed at the same time as daily life activities such as watching TV, reading, and eating.

A perspective view (a) and a side view (b) of the first embodiment of the health appliance Side view showing how to use health equipment Side view showing the principle of generating traction force of health equipment Side view showing the principle of generating traction force of health equipment A perspective view of a health appliance according to a second embodiment Side views (a) and (b) showing the operation of health equipment Side view (a) of the first embodiment of the health equipment set and side view (b) of a modified example Side view of the second embodiment of the health equipment set Table showing experimental results using the health appliance of the first embodiment and the health appliance of the second embodiment These are photographs showing the inclination angle of the shin and the amount of drop of the lower end of the heel, (a) is Basic Experiment 1, (b) is Basic Experiment 6, (c) is Example 1 with flutter, and (d) is Example 2 and the angle of the shin and slope is 30°.

[First embodiment]
A first embodiment of the health appliance 1 of the present invention will be described.
As shown in FIGS. 1 and 2, the health appliance 1 of the present embodiment is used by being hooked onto a convex corner 101 of a step 100, and includes a main body portion 10 and a locking portion 20. Examples of the step 100 on the other side include, but are not limited to, an entrance stile, a moat kotatsu, a porch, a park bench, and a staircase landing. Further, as will be described later, by using a floor plate, the health appliance 1 can be used on a flat floor, chair, bed, etc.
The upper surface of the main body 10 consists of an inclined surface 11 that rises from the front end to the rear end, and the lower surface of the main body 10 consists of a horizontal surface 12.

The locking portion 20 is a member that hangs down from the front end of the main body portion 10. As will be described later, since the calf is placed on the inclined surface 11, by rounding the front and rear ends of the inclined surface 11, it is possible to prevent the calf from feeling painful due to contact with corners.
The material of the main body part 10 and the locking part 20 is not particularly limited, and may be wood such as veneer, plastic, hard styrofoam, or metal such as iron. The main body part 10 and the locking part 20 may be manufactured integrally, or the main body part 10 and the locking part 20 may be manufactured separately and connected together by screwing, adhesive, etc. However, in order to maximize the hammer effect, which will be explained later, the material of the main body 10 is preferably a material that does not have cushioning properties. Further, the bare skin of the calf may be placed on the inclined surface 11 of the main body portion 10, and the surface of the inclined surface 11 is preferably made of a material that provides a good feeling of contact with the bare skin. Specifically, it is wood with a smooth surface finish.
A recess corner 30 is formed by the horizontal surface 12 of the lower surface of the main body portion 10 and the rear surface of the locking portion 20.
In addition, the "angle of the inclined surface 11" in the health appliance 1 means that the inclined surface 11 is curved backward from a vertical line extending upward from the frontmost end of the locking part 20, as shown in FIG. 1(b). There is a point P1 that extends upward from the rearmost end of the main body 10, a point P2 that curves forward from a vertical line extending upward from the rear end of the main body 10 to form an inclined surface 11, and a line L connecting P1 and P2 is an extension of the horizontal surface 12. It refers to the angle θ formed by
Further, the longitudinal width of the inclined surface 11 refers to the distance W1 between P1 and P2, and the lateral width of the inclined surface 11 refers to the lateral width W2 of the main body portion 10.

How to use health appliance 1 will be explained.
As shown in FIG. 2, the concave corner 30 is hooked onto the convex corner 101 of the step 100 for use. Specifically, the user sits on the horizontal surface of the upper step 102 of the step 100 with the concave corner 30 hooked onto the convex corner 101, and places the calves of the left and right legs on the inclined surface 11. By adjusting the position on which the calves are placed back and forth, the heels of the left and right feet can be made to float above the horizontal surface of the lower step 103 of the step 100. As will be explained later, by keeping the heel in the air, a traction force is generated on the knee joint using the lever principle. In addition, in order to raise the heel, the height h of the step is required to be at least a certain level, but as will be explained later using experimental data, there is no problem if the height h is about 20 cm, and it can be used on the entrance steps of most Japanese houses. In addition, there is no problem in using the moat kotatsu, benches, stair landings, and park benches.
As shown by arrow A in FIG. 2, the load when the calf is placed is applied backward and diagonally downward to the convex corner 101 of the step 100 through the health appliance 1, that is, the concave portion of the health appliance 1 Since a force acts in the direction of pressing the corner 30 against the convex corner 101 of the step 100, the health appliance 1 will not shift back and forth or left or right during use, even without using known fixing means such as screws or adhesive tape.

As shown in Figure 3, when the heel is in the air, the point where the calf rests on the slope 11 becomes the fulcrum of the lever, the tibia 72 is the rod of the lever, the foot is the point of force, and the knee joint 70 is the point of action. I can do it. At this time, a large force F is generated obliquely upward in the knee joint, and a parallelogram vector decomposition of this force generates a force F1 that pulls the knee joint 70 in the extension direction of the femur 71. At the same time, a force F2 that tries to lift the knee joint 70 vertically upward is generated, causing the knee joint 70 and the front of the thigh to float upward, and the weight of the thigh and the force F2 cancel each other out, resulting in a stable stationary state. If there is a structure such as a cushion material under the thigh, this structure will support the weight of the thigh, causing the knee joint 70 to lift upward and the foot to drop further, causing the heel to reach the lower step 103 and the lever not working. It disappears. Therefore, it is important that there is nothing below the thigh other than the horizontal surface of the upper tier 102. This lever principle generates a traction force on the knee joint when the entire leg is relaxed and at rest, but in order to increase this traction force, the user adds the following exercise.

As shown in Figure 4, while keeping the calf on the inclined surface 11, apply force to the thigh muscles (quadriceps femoris) to lift the toes upward (from position A to B in Figure 4), and then relax. Repeat the up-and-down movement of the toes by dropping them downwards using their own weight (from position B to A in Figure 4) several times. At this time, exercise only the affected leg, move the left and right toes up and down at the same time, or lift one of the left and right toes upwards without moving the other foot. The user is free to decide whether to perform the exercise in a so-called flutter motion in which one foot falls downward and the other foot is lifted upward, and the number of repetitions of this exercise.
When the falling foot reaches its original position, the heavy object from the calf to the foot suddenly stops at its original resting position after free falling, which creates a hammer effect and moves in the direction shown by the arrow in Figure 4. , an instantaneous traction force F3 of the knee joint 70 is generated which is larger than that under the static load. This traction force F3 pulls the knee joint forward. This traction force can be further increased by attaching ankle weights to the feet. Also, during this sudden stop, a large instantaneous pushing force is generated on the calf, which massages the calf muscle.
By repeating these up-and-down motions of the toes, intermittent traction of the knee joints, bending and stretching exercises of the knee joints, quadriceps muscle training, and calf massage can be performed at the same time.
In addition, when performing this flapping foot movement, a force is exerted to move the entire body forward, but there is a static friction effect between the user's buttocks and the horizontal surface of the upper step 102 of the step 100, and the user places his/her hands on the horizontal surface. By trying to suppress movement, forward movement of the body can be prevented.

[Second embodiment]
A second embodiment of the health appliance of the present invention will be described, and parts having the same configuration as the first embodiment will be designated by the same reference numerals and the explanation thereof will be omitted.
As shown in FIGS. 5 and 6(a), the health appliance 2 of this embodiment is characterized in that the angle that the inclined surface 43a forms with the lower surface of the main body portion 40 is variable. Specifically, the main body portion 40 is composed of a main body plate 41, a support portion 42, and an inclined plate 43.

The main body plate 41 extends in the horizontal direction and is a member constituting the lower surface of the main body part 40.
The support portion 42 is a member that is disposed between the vicinity of the center in the front-back direction and the front end of the main body plate 41 and extends in the vertical direction.
The inclined plate 43 is in contact with the upper end of the support portion 42 at approximately the center of its lower surface in the front-rear direction. The surface of the inclined plate 43 corresponds to the inclined surface 43a. The inclined plate 43 has a plurality of through holes 43b formed in the left-right direction that extend in the vertical direction, and the support portion 42 has a plurality of through holes 42a formed in the left-right direction that extend in the front-rear direction. By passing string-like members 44 such as cable ties or wires through these through-holes 43b and 42a, the inclined plate 43 rotates around the point in contact with the support part 42, as shown in FIG. 6(b). The front end and the rear end can rotate and swing in the vertical direction, that is, the angle formed by the inclined surface 43a with the lower surface of the main body 40 can be freely changed according to the force applied to the inclined plate 43.

With this structure, when the calf is placed on the inclined plate 43, the angle of the inclined plate 43 is automatically changed so that the forces applied to the front and rear ends of the inclined plate 43 are balanced (automatic adjustment effect). With this effect, even if the user's physique or knee bending angle preference changes, the inclined surface 43 will not hit the calf unevenly, and the inclined surface 43a will hit the calf uniformly, preventing the situation where the calf feels painful due to corner contact. can.
In this embodiment, a rotatable coupling structure is used with the through holes 42a, 43b and the string-like member 44, but a known coupling structure such as a hinge or a ball fitting may be used.
Further, as shown in FIG. 5, the longitudinal width of the inclined surface 43a refers to the longitudinal width W1 of the inclined plate 43, and the horizontal width of the inclined surface 43a refers to the horizontal width W2 of the inclined plate 43.

The key point of this second embodiment is that the distance D between the rotation axis R and the inclined surface 43a shown in FIG. 6(b) is sufficiently smaller than the longitudinal width W1 of the inclined surface 43a. If the distance D is equal to or greater than the longitudinal width W1, the above-mentioned automatic adjustment effect, which is the purpose of this structure, will not work. The important point is that the rotation axis R is disposed in the region Z1 above the plane including the upper stage 102 and behind the plane including the front surface of the locking part 20. If the rotation axis R is placed in area Z2 other than area Z1, there will be a problem that the health appliance will fall off from the convex corner 101 during use, and if it is placed in area Z3, it will fall off the user's legs and upper tier 102. , a problem such as contact with the main body plate 41 or the locking part 20 occurs, making it unusable.

[First embodiment]
A first embodiment of the health equipment set of the present invention will be described.
As shown in FIG. 7(a), the health equipment set 3 is composed of the health equipment 1 and the floor plate 50, and the user can use the health equipment 1 while lying on his back on a bed or floor.
The bottom plate 50 includes a horizontal plate 51 extending in the horizontal direction and an inclined plate 52 rising forward from the front end of the horizontal plate.

The front end of the horizontal plate 51 and the rear end of the inclined plate 52 are connected by a well-known connecting member such as a string-like member 53 such as a binding band or wire passed through a through hole, or a hinge.
In order to maintain the inclined state of the inclined plate 52, a support plate 54 extending downward from the front end of the inclined plate 52 is provided. By attaching the support plate 54 to the front end of the inclined plate 52, it is possible to prevent the front end of the inclined plate 52 from being bent when the toe of the foot moves up and down, and to maximize the hammer effect. The support plate 54 only needs to be able to raise and fix the front end of the inclined plate 52, and may be replaced by a rod-shaped, pipe-shaped, or block-shaped structure.

A step 100 is formed at the front end of the inclined plate 52, and the user hooks the concave corner 30 of the health appliance 1 onto the convex corner 101 of this step 100, and while lying on his/her back on the horizontal plate 51, the user can move from side to side. Place the calf of the leg on the slope 11. By adjusting the position of your calves back and forth, you can raise the heels of your left and right feet off the floor.
In this state, the load when the calf is placed on it acts backward and diagonally downward on the convex corner 101 of the step 100 through the health appliance 1, causing the concave corner 30 of the health appliance 1 to be transferred to the convex corner 101 of the step 100. Since the force acts in the direction of pressing the health appliance 1, the health appliance 1 will not shift back and forth or left or right during use, even without using well-known fixing means such as screws or adhesive tape.
As mentioned above, when the user moves the toes up and down, the lever principle and hammer effect occur, allowing intermittent traction of the knee joint, bending and straightening of the knee joint, quadriceps muscle training, and calf massage at the same time.
The user's upper body is on the horizontal plate 51, and the front end of the horizontal plate 51 and the rear end of the inclined plate 52 are in contact with each other, so even if you move your feet up and down, the health appliance 1 will not tilt due to the traction force. It does not shift backward together with the plate 52.
Note that the health appliance 2 shown in the second embodiment in which the angle of the inclined surface 43a is variable may be used.

Alternatively, as shown in FIG. 7(b), a belt 55 may be provided at the rear end of the horizontal plate 51, and the user's skull may be fixed to the horizontal plate 51 by hooking the belt 55 around the user's chin. In this case, the knee traction force is transmitted from the hip joint to the lumbar vertebrae to the spine to the cervical vertebrae, and can pull the entire body skeleton. This whole-body traction provides the same health benefits as commercially available hanging devices and inverted hanging devices.
In this embodiment, the health appliance 1 and the floor plate 50 are constructed separately, but if it is assumed that the health appliance 1 will be used only in the health appliance set 3, the health appliance 1 may fall off when being carried or stored. In order to prevent this, the health appliance 1 and the inclined plate 52 may be integrated, and furthermore, the health appliance 1, the inclined plate 52, and the horizontal plate 51 may be integrated. For integration, known fixing methods such as hook-and-loop fasteners, magnets, screws, etc. may be used, or they may be formed integrally.

[Second embodiment]
A second embodiment of the health equipment set of the present invention will be described, and parts having the same configuration as the first embodiment will be given the same reference numerals and the explanation thereof will be omitted.
As shown in FIG. 8, the health equipment set 4 of the present embodiment is composed of the health equipment 1 and the bottom plate 60, and the user can use the health equipment 1 while sitting on a chair or bed.

The floor plate 60 includes a horizontal plate 61 extending in the horizontal direction and a support structure 62 for maintaining the horizontal plate 61 in a horizontal state. The bottom plate 60 is used by placing it on the seat 104 of the folding chair 80 or the mattress of the bed.
The support structure 62 is a member extending downward from the front end of the horizontal plate 61, and its height is variable. The support structure 62 consists of a first plate 62a and a second plate 62b, and each plate 62a, 62b has a plurality of bolt holes formed in the vertical direction. The height of the support structure 62 can be increased by passing the bolts 63 through the bolt holes of the first plate 62a and the bolt holes of the second plate 62b while the first plate 62a and the second plate 62b are partially overlapped. is fixed in an optimal state, that is, at a height that allows the horizontal plate 61 to be maintained in a horizontal state. By doing so, it is possible to accommodate a plurality of chairs with seat surfaces 104 of different heights. Furthermore, by adjusting the height of the support structure 62 to the sleeping surface of the bed, the health appliance 1 can be used on the bed.

By attaching the support structure 62 to the front end of the horizontal plate 61, it is possible to prevent the front end of the horizontal plate 61 from being bent when the foot moves up and down, and to maximize the hammer effect.
A step 100 is formed at the front end of the horizontal plate 61, and the user hooks the concave corner 30 of the health appliance 1 onto the convex corner 101 of the step 100 and stretches the calves of the left and right legs while sitting on a chair, etc. Place it on the slope 11. The left and right toes will be lifted off the floor.
In this state, the load when the calf is placed on it acts backward and diagonally downward on the convex corner 101 of the step 100 through the health appliance 1, causing the concave corner 30 of the health appliance 1 to be transferred to the convex corner 101 of the step 100. Since the force acts in the direction of pressing the health appliance 1, the health appliance 1 will not shift back and forth or left or right during use, even without using well-known fixing means such as screws or adhesive tape.

As mentioned above, when the user moves the toes up and down, the lever principle and hammer effect occur, allowing intermittent traction of the knee joint 70, bending and stretching of the knee joint 70, quadriceps muscle training, and calf massage at the same time. can.
The user's upper body is on the horizontal plate 61, and when a traction force is applied by moving the toes up and down, a force that tries to move the entire body forward is applied, but the user's buttocks and the horizontal plate 61 remain stationary. The forward movement of the body can be prevented by the friction effect and by the user trying to restrain movement by placing his/her hand on the horizontal plate 61. Furthermore, by adjusting the height of the support structure 62, if the front end of the horizontal plate 61 is tilted slightly higher than the rear end, a force will be generated that tries to move the entire body backward due to the body weight, and the force due to this tilt and the traction force will be This offsets the balance and prevents the entire body from moving forward.
In this embodiment, the user is able to perform traction exercises at the same time as performing daily activities such as watching television, reading, and eating, while remaining relaxed and sitting in a chair or bed.
Note that the health appliance 2 shown in the second embodiment in which the angle of the inclined surface 43a is variable may be used.
In this embodiment, the health appliance 1 and the floor plate 60 are constructed separately, but if it is assumed that the health appliance 1 will be used only in the health appliance set 4, the health appliance 1 may fall off when being carried or stored. In order to prevent this, the health appliance 1 and the horizontal plate 61 may be integrated, and furthermore, the health appliance 1, the horizontal plate 61, and the support structure 62 may be integrated. For integration, known fixing methods such as hook-and-loop fasteners, magnets, screws, etc. may be used, or they may be formed integrally.

FIGS. 9 and 10 show experimental results using the health appliance 1 of the first embodiment and the health appliance 2 of the second embodiment.
As a basic experiment before prototyping the health equipment, we sat on a horizontal surface at the top of a step and measured the forward downward inclination angle of the shin and the downward slope of the lower end of the heel, with the horizontal as a reference point of 0°. The amount of descent of the lower end of the heel is a value indicating the vertical distance between the lower end of the heel and a reference plane obtained by extending the horizontal plane of the upper step of the step to the tip of the foot (see FIG. 10). If the lower end of the heel falls more than the height h of the step, the health appliance becomes unusable because the heel comes into contact with the horizontal surface of the lower step. Assuming that the height difference in the entrance stile of an average Japanese house is 20 cm, we made it mandatory for the lower end of the heel to fall less than 20 cm. (The difference in height between the hori kotatsu, benches, staircase landings, and park benches is usually 20 cm or more, so there is no problem.)

As shown in the table in Figure 9, in basic experiments 1 to 6, we placed temporary cushioning material on the corners of the convex part of the step, sat on the horizontal surface of the upper step, changed the position of the calf, and adjusted the inclination angle of the shin part from 15° to 50°. In basic experiments 1 to 3 (shin inclination angle 15° to 25°), the amount of lower heel drop was less than 20 cm, and sufficient knee joint traction force was obtained when performing a flapping step. I decided this based on my experience. On the other hand, in basic experiments 4 to 6 (shin angle of inclination 30° to 50°), the lower end of the heel lowered by more than 20 cm, so the judgment was ``×''. The patient was no longer able to effectively utilize the knee joint traction force, and the sensory evaluation of knee joint traction force also deteriorated.
In addition, as stated in the range of motion column in the table on page 472 of Non-Patent Document 1, as knee osteoarthritis becomes more severe, the knee joint becomes unable to bend. ), it is necessary to be able to use health equipment, and Basic Experiments 1 to 3 above meet this requirement.

Based on the results of the basic experiment, we prototyped the health appliance 1 of the first embodiment in which the angle of the inclined surface was set to 20 degrees as Example 1, and as Example 2 we produced a second implementation in which the angle of the inclined surface was variable. We prototyped a health appliance 2 in the form of . In both cases, the front and back width W1 of the slope is 10 cm, and the left and right width W2 is 40 cm.
In Example 1, when the inclination angle of the shin was adjusted to 20°, the lower end of the heel lowered by 13 cm before starting the flutter, and the pain sensation in the calf was good. In Example 1, the maximum amount of lower heel drop when starting the flutter was 14 cm, an effective traction force on the knee joint was obtained, and the pain sensation in the calf region was good. From this result, the increase in the amount of lower heel drop due to the addition of flutter from a resting state is small, about 1 cm.
In Example 2, when the inclination angle of the shin was adjusted to approximately 15°, the maximum lower heel drop was 11 cm when starting to flutter, an effective traction force on the knee joint was obtained, and pain sensation in the calf was good. Met.
In Example 2, when the inclination angle of the shin was adjusted to approximately 30°, the maximum lower heel drop was 16 cm when starting to flip, an effective traction force on the knee joint was obtained, and the pain in the calf was good. Met.

[Consideration]
From the results of Basic Experiments 1 to 3 and Example 1, in the health appliance 1 of the first embodiment, the preferable angle θ of the inclined surface is in the range of 15° to 25°.
From the results of Example 2, in Example 2, the inclination angle of the shin and the angle of the slope of the health appliance automatically match, so in Example 2, the angle of inclination of the shin is wider than in Example 1. Good results were obtained.
Furthermore, although it is not shown in the table of Figure 9, if the front-to-back width W1 of the slope is narrowed to about 5 cm, pain will be felt in the calf area, and if it is widened to about 15 cm, the rear end of the slope will hit the back of the knee, resulting in optimal calf pain. Unable to find the correct position (position where the shin part has an inclination angle of 20°). Therefore, the optimum value for the longitudinal width W1 of the inclined surface is approximately 10 cm.
The horizontal width W2 of the slope should be about waist width on which both legs can be comfortably placed, and specifically, the optimum value for the horizontal width W2 of the slope is around 40 cm.
Examples 1 and 2 above can be used even in patients with severe knee osteoarthritis who can hardly bend their knees.

Regarding the safety of this health equipment and health equipment set, there is no risk of injury from falling as it is used in a sitting or supine position and the body is not fixed. Also, as shown in Figures 3 and 4, a bending force is applied to the tibia 72, but this force is applied at the same place and in the same direction when standing with knees bent in a half-hip posture, and the magnitude of this force is different from the total weight of the body. The mid-waist posture, which requires a lot of effort, is more important. Therefore, there is no risk of fracture of the tibia 72 when using this device, and no risk of fracture was felt when using the prototype. In addition, as mentioned above, the increase in the amount of drop of the lower end of the heel due to the addition of a flapping foot is small, about 1 cm, and if the heel is floating in a stationary state, there is no risk of injury from hitting the heel against the horizontal surface of the lower step 103 due to the flapping foot. .

The present invention simultaneously performs intermittent traction of the knee joint, bending and stretching the knee joint, quadriceps muscle training, and calf massage, and the synergistic effect of these exercises improves and prevents symptoms of knee joint diseases, and also limits the use of the knee joint. The present invention is a health appliance and a health appliance set that are not susceptible to damage, are inexpensive, and have industrial applicability.

1 Health equipment
2 Health equipment
3 health equipment set
4 health equipment set
10 Main body
11 Slope
12 horizontal plane
20 Locking part
30 Recess corner
40 Main body
41 Main body plate
42 Support part
42a through hole
43 Inclined plate
43a Slope
43b Through hole
44 String-like member
50 Floor plate
51 horizontal plate
52 Inclined plate
53 String-like member
54 Support plate
55 belt
60 Bottom plate
61 horizontal plate
62 Support structure
62a 1st plate
62b 2nd plate
63 volts
70 Knee joint
71 Femur
72 Tibia
80 folding chair
100 steps
101 Convex corner
102 Upper row
103 Lower row
104 Seat surface

Claims (3)

It is a health device that is used by hanging on the convex corner of a step.
It includes a main body made of a material that does not have cushioning properties , and a locking part that hangs down from the front end of the main body,
The upper surface of the main body part continues to rise from the front end to the rear end, and the front end and the rear end are formed of an inclined surface with roundness ,
The concave corner formed by the lower surface of the main body part and the rear surface of the locking part is hooked onto the convex corner, and the user's calf is placed on the inclined surface so that the user's feet are positioned in front of the user. ,
A health appliance characterized in that the angle of the inclined surface with respect to the lower surface is in the range of 15° to 25°, and the longitudinal width of the inclined surface is greater than 5 cm and smaller than 15 cm .
A health equipment set comprising the health equipment according to claim 1 and a floor plate,
The floor plate includes a horizontal plate extending in the horizontal direction and a support structure for maintaining the horizontal state of the horizontal plate,
A health equipment set characterized in that the health equipment is used by hooking the recessed corner of the health equipment onto the convex corner of a step formed at the front end of the horizontal plate.
3. The health equipment set according to claim 2, wherein at least the health equipment and the horizontal plate are integrated.

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