JP2004147908A - Moving bed type trunk muscle strengthening training machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily and safely strengthen and develop the iliopsoas muscle (the generic term of greater psoas muscle and iliac muscle) as deep muscles of the trunk and nerves governing for the muscles. <P>SOLUTION: The muscle strengthening training machine is composed of a moving bed horizontally and anteroposteriorly moving, a bed moving mechanism, a pair of right and left pedals and pedal arms, a crank, one end of which is rotatably connected to the ends of the pedal arms and the other end to a rotating shaft, a rotating shaft, a device loading resistance onto the rotating shaft, a resistance loading regulator and an operation regulator of the rotating shaft and the moving bed. The bed moves horizontally and anteroposteriorly in association with the rotation of the pedal arms. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bed-removable trunk muscle strengthening training machine, and particularly easily and safely strengthens and develops the iliopsoas muscles (general name of the psoas major and iliac muscles), which are deep trunk muscles, and the nerve groups that control them. It is to try to make it.
[0002]
[Prior art]
As a conventional technique, there are various strength training machines. A typical example is a trainer who sits on a pedestal and fixes his / her trunk, and then exercises while applying a load to a target muscle group such as an arm or a leg by hydraulic pressure or weight. These are mainly effective for strengthening the limbs or rectus abdominal muscles, but it is not effective for strengthening the muscles of the deep trunk such as the iliopsoas muscle (hereinafter abbreviated as trunk muscles). Can not. In addition, in so-called free weights using a barbell or the like, in order to protect the waist portion, it is general that the upper body and the waist portion are stably fixed and implemented. It is not effective in strengthening trunk muscles.
[0003]
From this viewpoint, a training machine using an electromagnetic brake for the purpose of strengthening trunk muscles has been proposed (for example, see Patent Document 1). This is intended to strengthen the trunk muscles by the trainee operating various attachments connected to the electromagnetic resistance load device, but compared to the effect of the standing position, the effect is in the sitting position or supine position Because the effect when used was inferior, there were some that did not support the purpose (event) and mode (form) of exercise.
[0004]
In addition, a device in which the trainee moves by the device includes a rowing training machine. This is a training machine in which the trainer on the seat moves horizontally in the front and rear direction as the legs flex and extend when the trainee on the seat holds the foot and pulls the oar or wire rope in rowing operation. The aim is to simulate the form of a boat race on the ground while strengthening the corresponding muscle strength. This device can strengthen the trunk muscles in the range of exercise in line with the boating competition, but its effect is limited.
[0005]
In recent years, attention has been focused on the need to strengthen muscle groups deep in the trunk, especially the psoas or iliopsoas connecting the lumbar spine, pelvis and femur. According to a study by Fuya Kuno et al. (Fuya Kuno, Yoshitaka Enomoto, Ken Miyashita, Shigeru Katsuta) (for example, see Non-Patent Document 1. "The Importance of Hip Muscle" Psoas major "in Sprinters)" The correlation between the distance athlete's performance and the cross-sectional area of the psoas major was extremely high, indicating that the athlete with excellent sprinting had significantly developed the psoas major. In addition, when targeting the general middle-aged and elderly people, it is found that a person with a small cross-sectional area of the psoas major muscle is more likely to be a so-called bedridden elderly person. From these, it became clear that the psoas major muscles support the body and play the most basic role in performing basic exercises.
[0006]
However, the devices that can be used for strengthening these important trunk muscle groups are limited as described above, and their purposes (exercise items) and modes (forms) are also limited. For this reason, at present, gymnastics of the legs and hip joints mainly for rectus abdominal muscle exercise is the main training method, but strengthening of the psoas major and iliac muscles is secondary and its effect is It was not high. Further, in the prior art, there is no suitable device for strengthening the trunk muscle group for so-called bedridden prevention or rehabilitation in consideration of a possible posture, such load and danger.
[0007]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 2002-17887 [Non-Patent Document 1]
Proceedings of the 1st International Conference on Medical Science and Coaching in Athletics, 1999, pp. 69-74 [0008]
[Problems to be solved by the invention]
The present invention solves such a problem that was difficult with the conventional technique, and (1) a trunk muscle group that can be implemented in a supine or prone position, which is safe and has a high degree of freedom in an exercise mode. It is an object of the present invention to provide an enhanced training machine, and (3) to provide an enhanced training machine for trunk muscle groups that can be used for so-called bedridden prevention and rehabilitation.
[0009]
[Means for Solving the Problems]
In order to solve the above problems and achieve the object, a bed-movable torso strength training machine of the present invention is configured as follows.
That is, a movable bed that moves in the horizontal front-rear direction, a bed moving mechanism, a pair of left and right pedals and a pedal arm, a crank rotatably connected to one end of the pedal arm and the other end connected to a rotary shaft, a rotary shaft, and a rotary shaft. A bed-movable trunk muscle strengthening training system comprising a resistance load device for the vehicle, and a resistance load adjustment device and an operation adjustment device for the rotating shaft and the moving bed, and the bed moves horizontally and back and forth according to the rotation of the pedal arm. Machine.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a side view (FIG. 1), a partially cutaway front view (FIG. 2), and a training method for another training method according to an embodiment of the present invention will be described. This will be described more specifically based on a front view (FIG. 3) partially cut away and a side view (FIG. 4) of a machine provided with a rotating shaft moving mechanism.
[0011]
The bed-movable torso-strengthening training machine includes a base unit 10 placed on a floor, a bed moving mechanism 20 fixed to the base unit 10, and a mobile type that horizontally moves on the bed moving mechanism 20. A bed 30, a pedal 40, a rotary shaft 50 connected to the pedal 40 via a crank, a resistance load device 60, and a resistance load adjustment / operation adjustment device 70 are provided.
The bed moving mechanism 20 includes a pedestal 21 with a guide rail. On the pedestal 21 with the guide rail, a direct-acting ball screw continuous moving pedestal 22 is supported so as to be able to reciprocate along the directions α and β in FIGS. The direct-acting ball screw continuous moving pedestal 22 can be reciprocated by a direct-acting ball screw 23 that is mounted on the support base 11 along the moving direction of the bed and is rotated by a power unit 24. A bed plate support 26 is mounted on the direct-acting ball screw continuous moving pedestal 22 with a movable pedestal 25 interposed therebetween. The bed board support 26 is supported by a pair of support rails 27a and 27b.
[0012]
The movable bed 30 includes a movable bed plate 32. The movable bed plate 32 is placed on the bed plate support 26 with the spherical plate 31 interposed therebetween. The spring devices 33a and 33b are respectively arranged in a row on the bed plate support 26 on both sides of the spherical plate 31 to support the movable bed plate 32. Rolling movement is enabled by urging the bed plate 32 in the left and right body side directions. Note that the movable bed plate 32 can be directly mounted on the bed plate support 26.
[0013]
The resistance load device 60 includes a pair of left and right electromagnetic brakes 61a and 61b. The electromagnetic brakes 61a and 61b are connected to a pair of left and right sprockets 62a and 62b. The sprockets 62a and 62b are coaxial with the rotating shafts 51a and 51b via a pair of left and right toothed belts 63a and 63b. , B, and therefore the rotation of sprockets 51a, b causes the rotation of sprockets 62a, b, which is controlled by the electromagnetic brake. The operation of the pedal section 40 is detected by the rotation axis angle detectors 53a and 53b, and this information is transmitted to the load adjustment / operation adjustment device 70.
[0014]
The pedal section 40 includes a pair of left and right cranks 41a and 41b. That is, one end of the pair of left and right cranks 41a, b is connected to the rotating shafts 51a, 51b, which are the central axes of the pair of left and right sprockets 52a, 52b, and the other end is connected to the pedal arms 42a, 42b, respectively. Are rotatably connected to each other, and a pair of left and right pedals 44a, b are rotatably connected to the other ends of the pedal arms 42a, b, respectively. The angle between the cranks 41a and 41b and the pedal arms 42a and 42b is controlled by pedal arm expansion and contraction devices 43a and 43b that connect the cranks 41a and 42b and the pedal arms 42a and 42b.
[0015]
Further, the resistance load adjustment / operation adjustment device 70 adjusts the displacement of the movable bed 30, the operation of the pedal unit 40, and the magnitude of the load applied by the resistance load device 50, and also adjusts the relationship (balance) thereof. be able to.
Further, the entire resistance load device 50 can be made movable in the directions of α and β in FIG. 1 by using an arbitrary horizontal movement mechanism such as a direct acting ball screw, a chain sprocket, or a rack and pinion. Further, at this time, by using the operation adjusting device 60, the operations of the bed portion 30 and the resistance load device 50 can be synchronized and operated in opposite directions.
[0016]
A training method using the bed-movable trunk strength training machine 10 configured as described above will be described.
(1) Training method 1
The trainee rides on the movable bed board 32 in the supine position with the head in the side of FIG. 1α, the one-legged knee standing, and the sole placed on the bed 32 (hereinafter referred to as the stationary foot). And). Either left or right foot may be selected. The other sole is fixed to the pedal 44 (hereinafter referred to as a pedal-side foot). An arbitrary fixing device such as a band or a strap can be used for fixing the foot to the pedal. Bend the knee of the pedal side leg and take the initial posture with the thigh fully pulled to the abdomen. From the initial posture, the pedal 44 is pushed out so that the knee and hip joint of the pedal-side leg that has been attracted extend. One end of the pedal arm 42 and one end of the crank 41 are rotatably connected to each other so that any angle can be changed. The pedal arm 42 and the crank 41 are each provided with a pedal arm expansion / contraction device 43 across the connection portion. Lever angle change is controlled. Therefore, in combination with the horizontal movement of the bed, the pedal can take an arbitrary trajectory, not a simple circular trajectory centered on the connecting axis of the crank 41 with the rotating shaft 51. Accordingly, the trainee can set the pedal trajectory corresponding to the form of the event using the operation adjusting device 70.
[0017]
The pushing force of the pedal side leg is transmitted as the rotating force of the sprocket 52 via the pedal arm 42 and the crank 41. The rotational force applied to the sprocket 52 is transmitted to the sprocket 62 via the toothed belt 63, and when the sprocket 62 rotates, a resistance load is applied by the electromagnetic brake 61. The resistance load can be arbitrarily adjusted by a load adjustment device 70 using a computer or the like.
[0018]
The rotation angle of the crank arm 41 is detected by a rotation axis angle detector 53, and the bed plate support base 26 supporting the bed plate 32 in synchronization with the rotation angle, the movable pedestal 25, and the movable ball screw interlocked movable pedestal 22 Move together in the head direction (α direction in FIG. 1). The movement of these pedestals is controlled by the power unit 24 and the operation adjusting unit 70. In the present embodiment, the direct-acting ball screw 23 is used as the bed moving mechanism 20, but any horizontal moving mechanism such as a chain sprocket or a rack and pinion can be used.
[0019]
When the pedals 44 are pulled to return the legs from the extended state to the bent state, the sprockets 52 and 62 rotate through the crank 41 in the opposite direction to that when the legs are extended, so that the movable bed also moves in the opposite direction. Moving. Also in this case, the load of the electromagnetic brake 61 can be adjusted by the load adjusting device 70.
Here, the timing of applying a load, the movement start / end timing of the bed 30, the movement range of the bed, and the like can also be individually adjusted by the load adjustment / operation adjustment device 70.
[0020]
(2) Training method 2
Another training method using the apparatus of the present embodiment will be described.
Replace the pedal 44 with a handle that can be gripped by hand. The trainee rides on the bed 32 in a supine position with the head in the direction of FIG. The left and right handles are grasped by the left and right hands, and the posture in which both arms are extended is set as the initial posture. When the arm 42 is rotated to attract the abdomen from the initial posture, the bed board 32 moves in the head direction (that is, the direction of β in FIG. 1), and when the arm 42 is rotated back to the head side, the bed board 32 moves in the foot direction. (Direction α in FIG. 1).
[0021]
The initial posture is a posture in which both arms are extended, and at this time, it can be set by the load adjustment / operation adjustment device 70 so as to apply a force for urging the bed plate 32 in the direction of the foot (α direction in FIG. 1). In this case, the trainee can experience the force of hanging on the horizontal bar while in the supine position. Furthermore, since the muscle strength is exerted on the upper arm from a state in which the upper body is slightly stretched, an eccentric stretching exercise effect and strength training can be used.
[0022]
(3) Training method 3
Another embodiment for use in another training method will be described.
The pedal section 40 is composed of a handle 404, an arm 402, and a crank 401, and a ball joint type connection section 405 that can rotate the connection section of the handle 404 and the arm 402 and the connection section of the arm 402 and the crank 401 three-dimensionally. Replace with the connected handle part 400 (FIG. 3). The rotating shaft part 50 and the electromagnetic brake part 60 are attached from the outside of the apparatus so that the rotating shaft can rotate 360 °. A state in which the handles 404a and 404b are grasped by the right and left hands, respectively, and both arms are extended is defined as an initial posture. In the prone position, the trainee can perform the same exercise as the butterfly stroke by rotating the arm around the shoulder joint or pull, and the scapula, the latissimus dorsi, the deltoid, and the mitral You can train mainly on muscles.
[0023]
(4) In the present invention which describes an improved embodiment applicable to any of the above embodiments, the rotation axis can be moved in the horizontal front-back direction in synchronization with the movement of the bed or independently. Hereinafter, description will be made with reference to FIG. The rotating shaft 50 and the resistance load device 60 are housed in the same rotating shaft moving base 80. The rotating shaft moving pedestal 800 can be moved in the horizontal front-back direction (arrows α and β directions in the figure) by the rotating shaft moving mechanism 200. As the rotation axis moving mechanism 200, a mechanism substantially the same as the bed moving mechanism 20 or any horizontal moving mechanism such as a direct-acting ball screw, a chain sprocket, or a rack and pinion can be used.
[0024]
【The invention's effect】
ADVANTAGE OF THE INVENTION By this invention, the reinforcement | strengthening training machine of the trunk muscle group which strengthens easily and effectively the muscle group of the trunk deep including the iliopsoas muscle can be provided, and by using this, (1) Safety In addition, the degree of freedom of the exercise mode is high, and (2) training can be performed even in a supine or prone position. Further, by using this, (3) the muscle group in the deep trunk can be strengthened for the purpose of preventing and rehabilitating so-called jealousness.
In addition, the bed and the entire resistance load device can reciprocate in the opposite direction synchronously or independently, thereby damaging the shoulder joint and the like due to a more difficult posture than when the trunk is fixed to the rotation axis. The possibility can be reduced, and the acceleration applied to the trunk can be reduced as compared with the relative movement distance of the trunk and the legs and arms.
[Brief description of the drawings]
FIG. 1 is a side view of the present apparatus.
FIG. 2 is a partially cutaway view of the apparatus in a front direction.
FIG. 3 is a partially cutaway view in a front direction of another embodiment of the present apparatus.
FIG. 4 is a side view of an embodiment of the present apparatus provided with a rotating shaft moving mechanism.
[Explanation of symbols]
Reference Signs List 10 bed movable trunk strength training machine 11 support base 12 pedestal 20 bed moving mechanism 21 pedestal with guide rail 22 direct-acting ball screw interlocking moving pedestal 23 direct-acting ball screw 24 power unit 25 moving pedestal 26 bed plate support 27a , B support rail 30 movable bed 31 spherical plate 32 movable bed plate 33a, b spring 40 pedal section 41a, b crank 42a, b pedal arm 43a, b pedal arm extension mechanism 44a, b pedal 50 rotary shaft section 51a, b Rotating shafts 52a, b Sprockets 53a, b Rotating shaft angle detector 60 Resistance load devices 61a, b Electromagnetic brakes 62a, b Sprockets 63a, b Toothed belt 70 Load adjustment / operation adjustment device 400 Handle portion 401a, b Crank 402a, b Handle arm 404a, b Handle 05 connecting part (ball joints)
200 Rotary axis moving mechanism 800 Rotary axis moving base

Claims (3)

A movable bed that moves in the horizontal front-rear direction, a bed moving mechanism for moving the movable bed, a pair of left and right pedals and a pedal arm, a pair of left and right rotation shafts to which rotational force is applied from the pedal arm, and a rotation shaft A movable bed training machine, comprising: a resistive load device for applying a load to the moving bed; The bed moving training machine according to claim 1, wherein the rotating shaft is moved in a horizontal front-rear direction by a rotating shaft moving mechanism, and the rotating shaft moving mechanism is controlled by a resistance load adjusting and operation adjusting device. The bed movable training machine according to claim 1 or 2, wherein the pedal is replaced with a steering wheel.

Images