CN112206476A

CN112206476A - Muscle trainer and motor nerve trainer

Info

Publication number: CN112206476A
Application number: CN201910626766.3A
Authority: CN
Inventors: 徐志强
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2021-01-12

Abstract

A muscle training device and a motor nerve training device belong to a motor training apparatus, wherein the simulated gravity of a user relative to a platform is generated by a gravity simulation device in a weightless environment, and the user can carry out standing or walking training, so that the lower limb muscle and the motor nerve center are trained in a targeted manner. The exercise device has the significance of training muscles and motor nerves in a weightless environment, is beneficial to keeping the motor function, and can quickly recover the stable standing and walking ability when a user returns to the ground.

Description

Muscle trainer and motor nerve trainer

The invention relates to a muscle training device and a motor nerve training device in the technical field.

As is well known in the background art, after an astronaut lives for a period of time in a weightless environment, the astronaut returns to the ground, and is required to be held or even lifted away under the conditions of abnormal motion function, incapability of walking normally and unstable standing. It is currently believed that this is due to osteoporosis and muscle atrophy caused by lack of external force stimulation of the body's motor system in the absence of weight loss. In order to solve the problem, targeted training equipment is arranged at the space station, and comprises a special treadmill and a bicycle trainer for training lower limbs, a chest expander and an elastic device for training upper limbs and the like, so as to stimulate muscles and bones and avoid muscle atrophy and bone loss. However, this method seems not to work well, and most of the trained astronauts still have difficulty walking or unstable standing after returning to the ground.

The applicant has not undertaken research on space sports training apparatus, nor is it a person skilled in the art, however, in the past, the control mechanism of the motor nerve centre of the brain on the body movement was analyzed (refer to the data attached to the specification of Chinese patent applications 2015101775882 and 2018107602170, etc.), how the motor nerve centre including the basal nerve loop and cerebellum can control the muscle in detail under the walking and resting state of the human body was analyzed, the control information can be integrated and memorized after being formed, the formed memory can be covered or replaced by new control information, so that the occasional recognition of the phenomena of difficulty walking and instability of standing when the astronaut returns to the ground, besides osteoporosis and muscular atrophy, has as an important cause, the motor nervous centre, in particular in the cerebellar nervous circuit, the original memory of the motion control information for coordinating the balance of the body when walking and standing on the ground is lost or covered by other new control information.

When a person walks on the ground, the motor nerve center needs to mobilize muscles of two lower limbs to realize walking action, and needs to mobilize muscles of the two upper limbs and a part of body core muscle group to coordinate and maintain body balance (swing arm balance), even if the person stands still, the motor nerve center needs to mobilize muscles of the two lower limbs and a part of body core muscle group simultaneously due to gravity and the fact that the person only has two lower limbs, and coordinate and maintain static balance in dynamic control. The control process of dynamically realizing the body balance not by a mechanical structure but by the continuous contraction and extension actions of active muscles is complex in practice, and only because the control process is formed slowly by standing and walking of infants, the complex control information is memorized in the motor nerve center, (the balance control relates to various sensory afferents and muscle control output from vision, vestibule, muscle spindle and the like, and the balance control information is mainly memorized in the cerebellum), so that the control process is perfect in unconsciousness without attention and active control at ordinary times.

When an astronaut lives in a weightless environment, the astronaut does not need to walk and stand under the gravity, and the previously formed motion control and balance control are completely unnecessary, so the motion memory for controlling the coordination action of muscles recorded on motor nerve centers such as cerebellum and the like is not used for a long time, and can be weakened or even lost. But this is not essential, and more importantly, astronauts also carry out continuous body movement in space, carry out various works and activities, even if the user only kicks the kicks and stretches the waist, the core muscle groups of the two lower limbs and the body of the user are called continuously, however, the integration and reflection relationships established between sensory afferents from the vision, vestibule, muscle spindles and control outputs to the various muscles, as opposed to the original ground environment, are completely, so to speak, chaotic, and the motor nerve center is mostly operated in an unconscious state, it cannot recognize that the motor control is disordered and unreasonable at this time, (actually, it is reasonable under a weightless environment), therefore, the control information of various muscle movements is stored by neural plasticity (synaptic plasticity and synaptic reconstruction) as it is, and even if the control information contradicts the original ground memory, the control information of the new movement can be covered and replaced by the original movement control information. After a certain time, the motion control information memorized by the motor nerve center becomes the motion control information which is suitable for the weightless environment but not suitable for the ground environment, when the astronaut returns to the ground, the motion control information memorized by the motor nerve center is not suitable for the ground gravity environment, the muscles can not be coordinately controlled to finish walking and standing, and the situations of difficult walking and unstable standing occur.

One example that may be referred to is: when people perform swinging motion on some fitness equipment, such as a walking machine which is common in outdoor fitness and the walking machine falls to the ground after ten minutes and a few minutes, the people have the feeling of unstable standing and unbalanced walking, because when the equipment continuously swings, control information output from the feeling of motion generates adaptive change, namely new memory, in the motor nerve center, and the control information cannot be adaptive when the equipment falls to the ground. Certainly, the memory belongs to short-time memory, the forming time is short, the loss is fast, and therefore the memory can be recovered to be normal in a short time. The astronaut has a longer life time in a weightless environment, the new exercise memory becomes firmer long-term memory, and the astronaut needs to train for a longer time to recover after returning to the ground.

Therefore, astronauts cannot walk and stand stably normally after returning to the ground, and have the reasons of muscular atrophy and osteoporosis, but the astronauts also have an important reason that motor nerve centers of the astronauts lose or partially lose the ability of coordinately controlling various muscles to walk and stand still, and cannot well control the balance of the organism, and the astronauts need to reestablish the memory of the motion control in the motor nerve centers through training like infants. (its recovery is much faster due to the high foundation and comprehensibility).

The present inventors have not considered the solution of this problem by using a targeted technique because the conventional studies have ignored the reason, and have proposed a related technique for performing muscle training and motor training in view of the above-mentioned research analysis.

The invention aims to disclose a muscle training device which can be used for an astronaut to train the muscles of lower limbs conveniently for a long time under the condition of weightlessness; the invention further discloses a motor nerve training device which can not only be used for an astronaut to train the muscles of the lower limbs under the condition of weightlessness, but also can simulate the unstable standing or walking state with gravity under the weightlessness environment so as to train the balance control capability of the motor nerve center to coordinate and control the muscles to stably stand or walk.

The muscle training device comprises a platform and a gravity simulation device; the platform can be a stand-alone baseplate or a fixed surface in the space capsule; the gravity simulator is used for connecting the body of a user and generating a pulling force for pulling the body to the platform.

The gravity simulation device comprises a waist fixing device and at least two tension belts; the waist fixing device is arranged at the waist of a user; one end of the tension belt is connected to the waist fixing device, and the other end of the tension belt is fixedly arranged on the platform; the tension belt is provided with (connected with) an elastic device, and the elastic device can generate elasticity when being stretched and is used for generating tension for pulling the waist fixing device to the platform through the elasticity.

The tension belt is also provided with a tension adjusting device capable of adjusting the tension so as to meet the requirements of different users.

The gravity simulator can also be provided with a shoulder fixing device which can be arranged on the shoulder (shoulder neck) of a user, and a second elastic device is arranged between the shoulder fixing device and the waist fixing device, so that a pulling force which draws the shoulder to the waist is generated between the shoulder fixing device and the waist fixing device, and part of muscles of the core muscle group of the body can be trained.

When the waist fixing device is used, the waist fixing device is arranged on the waist of a user, (the shoulder fixing device is worn and arranged on the shoulder and the neck), the other end of the tension belt is arranged and fixed on the platform, and the user vertically pedals the platform with lower limbs to overcome the elasticity of the elastic device so as to enable the user to form a standing state. And adjusting the tension adjusting device to make the tension suitable. The elastic means of the tension strap generate a tension force pulling the user towards the platform through the waist fixing means, thereby generating a force of the user's body against the platform (simulated gravity), which the astronaut can train the muscles of the lower limbs in rest, since he needs to push the lower limbs towards the platform to overcome to maintain a standing position. Compared with other training equipment for astronauts, the training device is used for training in a static state, can be used for a long time, and can also be used simultaneously when other work is carried out, so that the training device is more convenient and effective to use.

However, the above techniques can only perform stress training on the muscles of the lower limbs of the user, and are similar to the situation that the user strongly pedals the wall with both feet on the ground, and because the state that the center of gravity is unstable and easy to unbalance does not exist, the technique just trains the muscles like other exercise training apparatuses, and cannot train the balance control ability of how the brain motor nerve center coordinates and controls the muscles of the lower limbs and the body core muscle groups to stably stand or walk. To this end, the present invention discloses another technique.

The motor nerve training device comprises a platform and a gravity simulation device; the platform can be an independent base plate or a certain fixed surface of the space capsule; the gravity simulator is used for connecting the body of a user and generating force for pulling the body to the platform; the method is characterized in that: the platform is also provided with a pedal plate, and a movable connector is arranged between the pedal plate and the platform.

The movable connector is used for mounting and connecting the pedal plate to the platform in a movable mode, can bear the action of external force and keep stable state when the pedal plate is subjected to uniform pressure in the vertical direction, and can damage the stable state when the pedal plate is continuously subjected to non-uniform pressure in the vertical direction to enable the pedal plate to deflect (incline).

The movable connector can adopt one or more springs (compression springs), the diameter of each spring is smaller than the width of each pedal, one end of each spring is fixedly connected with each pedal, and the other end of each spring is fixedly arranged on the platform; or the movable connector adopts a movable joint structure, the movable joint structure is mainly formed by two arc-shaped contact surfaces (an inner arc surface and an outer arc surface) which are movably contacted with each other, one end of the movable joint structure is fixedly connected with the pedal, and the other end of the movable joint structure is fixedly arranged on the platform. If pressure is uniformly applied to the vertical direction of the spring or the movable joint structure, the spring or the movable joint structure can bear large pressure on the front surface and keep stable, and if the applied pressure is not uniform, the spring or the movable joint can deflect and incline.

The movable connector is also provided with an alarm device, and when the movable connector is detected to have deflection inclination larger than a set angle, an alarm signal is output. The function is to remind the user to pay attention when the standing is unstable beyond a certain degree.

The gravity simulation device also comprises a waist fixing device and at least two tension belts; the waist fixing device is arranged at the waist of a user; one end of the tension belt is connected to the waist fixing device, and the other end of the tension belt is fixedly arranged on the platform; the tension belt is provided with (connected with) an elastic device which is used for generating tension for pulling the waist fixing device to the platform.

The pulling force area can be provided with the pulling force adjusting device that can adjust pulling force size equally to be fit for different user's needs.

When the waist fixing device is used, the waist fixing device is arranged on the waist of a user, (the shoulder fixing device is arranged on the shoulder neck), the other end of the tension belt is fixed on the platform, the user stands upright, one foot pedals one pedal, (both single foot and double feet can be adopted, and the difficulty is higher when the user stands on one foot), and the elastic force of the elastic device is overcome to enable the user to form a standing state. Because an unstable movable connector exists between the pedal plate and the platform, the pedal plate is easy to deflect and incline, and a user needs to make effort to step on the pedal plate to maintain a stable and balanced standing state, so that the motor nerve training device can simulate the unstable stress condition of a human body standing under the gravity in a weightless environment, and forces the motor nerve center of the user to transfer the muscles of the lower limbs and the core muscles of the body to control the balance, thereby training the coordination control capability of the motor nerve center on the muscles of the lower limbs and the core muscles of the body when the motor nerve center stands, being beneficial to keeping the motion function of an astronaut, and enabling the astronaut to recover the stable standing capability when the astronaut returns to the earth ground.

The invention further improves, the invention trains motor nerves by walking, comprising a plurality of foot boards arranged on a platform, wherein the foot boards are arranged in at least two rows, and a movable connector is also connected between the foot boards and the platform; two guide rails are also arranged (installed) on the platform; one end of the tension belt is connected to the waist fixing device through an elastic device, and the other end of the tension belt is movably connected to the guide rail; the guide rail can be used for buckling one end of the tension belt and allowing the end of the tension belt to move on the guide rail.

As a specific scheme, a groove is formed in the guide rail, the notch of the groove is narrow, the end of the tension belt is connected with a sliding block, and the sliding block is installed in the groove, cannot be pulled away from the groove and can slide in the groove.

The design has the effects that when the user finishes the balanced standing state, the user can slowly step off the feet to walk on the two lines of unstable pedals, and strives to keep the feet stable and not inclined when stepping on the pedals, so that the unstable stress condition of walking under the gravity can be simulated under the weightless environment, and the motor nerve center is forced to transfer the muscles of the lower limbs and the core muscles of the body to control balance and stability, thereby training the coordination control capability of the motor nerve center of the user on the muscles of the lower limbs and the core muscles of the body when walking, (the coordination control of the swing arms of the upper limbs can be trained on the existing running machine), being beneficial to keeping the motion function of astronauts, and enabling the astronauts to quickly recover the normal walking capability when returning to the earth ground.

Description of the drawings fig. 1 is a schematic view of the structure of a muscle training apparatus. Fig. 2 is a schematic view of the connection of the waist fixing device to the tension band. Fig. 3 is a schematic diagram of a muscle training apparatus with shoulder immobilization. Fig. 4 is a schematic structural diagram of the motor training device. Fig. 5 is a schematic view of the structure in which the footrest is connected to the platform by a spring. Fig. 6 is a schematic view of the structure of the foot pedal connected to the platform by a movable joint structure. Fig. 7 is a schematic view of the foot pedal with a return spring installed. Fig. 8 is a schematic diagram of a motor training device for walking training. Fig. 9 is a schematic view of the structure of the guide rail.

Detailed description of the preferred embodimentsthe following detailed description of the invention refers to the accompanying drawings.

Fig. 1 is a schematic view of the structure of a muscle training apparatus. The muscle training device comprises a platform 1 and a gravity simulation device 2; the platform 1 can be an independent base plate or a fixed surface in the space capsule; the gravity simulator 2 is used to connect the body (body, body above the waist) of the user and to generate a pulling force that pulls the body towards the platform.

The gravity simulation device 2 comprises a waist fixing device 3 and at least two tension belts 4; the waist fixing device 3 is similar to a belt, can be formed by a rigid plastic belt with certain width and strength and wrapping a flexible material on the plastic belt, has enough structural strength and can be in close and soft contact with the waist, the waist fixing device 3 is provided with a locking device 7 which is similar to a belt buckle, and the waist fixing device 3 can be arranged at the waist position (the upper hip end) of a user in a surrounding way by opening and locking the locking device 7. The tension belt 4 may also be called a tension rope, and a soft rope with sufficient tensile strength, such as a nylon rope, may be adopted, one end of which is connected to the waist fixing device 3 through an elastic device 5, and the other end of which is fixed on the platform 1. The tension belt 4 is provided with (connected to) an elastic device 5, and the elastic device 5 may also be called an elastic device, and may be made of a tension spring or other elastic material such as a rubber band, and can generate an elastic force when being stretched. The elastic means 5 generate a pulling force pulling the waist fixing means 3 towards the platform 1 by means of the elastic force. The tension belts are at least two and are connected to the waist fixing devices at the left and right sides of the waist of the user, or three and are connected to the waist fixing devices in a triangular shape, as shown in figure 2, or more, so that the stress of the waist fixing devices is more uniform. When the waist fixing means 3 is fitted around the waist of the user, a tension band 4 of a suitable length can pull the body of the user towards the platform by means of the waist fixing means, thereby simulating the weight of the body against the platform. The tension belt 4 can be provided with a tension adjusting device 6 capable of adjusting the tension to meet the requirements of different users. The proper amount of tension is approximately close to or slightly less than the weight of the user on the ground. The tension adjusting device 6 generally adjusts the tension by adjusting the length of the tension belt or the length of the spring of the elastic device, belongs to the common technology in the mechanical field, and is not described in detail.

When in use, the waist fixing device 3 is arranged on the waist of a user in a surrounding way through the locking device 7, the other end of the tension belt 4 is fixed on the platform, and the user vertically pedals the platform with lower limbs to overcome the elasticity of the elastic device to enable the user to form a standing state. The elastic means 5 of the tension band 4 generate a tension force pulling the user's body towards the platform 1 by means of the waist fixing means 3, thereby generating an acting force (simulating gravity) of the user's body against the platform, which the astronaut needs to overcome to maintain a normal posture by pushing the lower limbs towards the platform, so that the muscles of the lower limbs can be trained in rest.

The gravity simulator may further include a shoulder fixing device, as shown in fig. 3, the shoulder fixing device 8 may also be formed by wrapping a flexible material on a hard plastic tape having a certain width and strength, and having sufficient structural strength and capable of making close and soft contact with the waist, and the shoulder fixing device may be in a ring shape, and may be directly fitted over (passed through) the head to be mounted on the shoulder (shoulder and neck) of the user without a locking device. At least two second elastic devices 9 are installed between the shoulder fixing device 8 and the waist fixing device 3 (installed on both sides), and a pulling force for pulling the shoulders to the waist is generated between the two elastic devices, so that the muscles of the lower limbs are trained, and part of the muscles of the body core muscle group are trained.

The motor nerve training device of the invention comprises a platform 1 and a gravity simulator 2 as shown in figure 4; the platform can be an independent base plate or a certain fixed surface of the space capsule; the gravity simulator is used to attach to the user's body and generate a force that pulls the body toward the platform. The gravity simulation device can use the same gravity simulation device as the muscle training device, can be provided with a tension adjusting device capable of adjusting the tension, and can be provided with a shoulder fixing device. Other prior art gravity simulating means may be used as long as they are capable of generating a force that pulls the body towards the platform.

It is characterized in that a pedal 10 is arranged on the platform 1, and a movable connector 11 is arranged (installed) between the pedal 10 and the platform 1. The foot pedal 10 is a flat plate having a shape close to or slightly larger than the sole of a foot, and can be used for the sole of the foot to step on. The movable connector 11 is used to movably connect and mount the footrest 10 to the platform 1, and is characterized in that it can bear the external force and maintain the stable state when the footrest 10 is uniformly pressed in the vertical direction of the platform, and the stable state is destroyed and the footrest 10 is deflected (inclined) when the footrest 10 is continuously pressed in the vertical direction of the platform.

The movable connector 11 may be a spring device, as shown in fig. 5, and a spring 12, i.e. a compression spring, is used, the diameter of the spring 12 is smaller than the width of the foot pedal, and may be about equal to 1/3 to 2/3 of the width of the foot pedal, and one end of the spring 12 is fixedly connected to the foot pedal, and the other end is fixedly installed on the platform 1. If the user's sole is stepping on the foot rest 10 vertically and can keep balance, the foot rest 10 applies pressure to the axial direction of the spring 12 vertically and uniformly, the spring 12 can bear large pressure on the axial front face and keep stable, and if the sole is stepping on the foot rest 10 in unbalance, the pressure applied to the spring 12 by the foot rest 10 is not uniform, and the spring 12 is easy to deflect and incline in a certain direction around. The spring device can also adopt a plurality of smaller compression springs which are connected with the pedal in parallel, and the work is the same.

The movable connector 11 may also be a movable joint structure 13, as shown in fig. 6. The movable joint structure 13 includes two half joint structures, i.e. an upper half joint structure 14 and a lower half joint structure 15 in fig. 5, which are in contact with each other by means of two arc-shaped contact surfaces, i.e. an inner arc surface and an outer arc surface, the outer arc surface can move relatively in each direction on the inner arc surface (substantially, also rotate at a certain angle), and the other two ends of the two half joint structures, one end of which is fixedly connected with the pedal 10 and the other end of which is fixedly installed on the platform 1. If the user's sole vertically steps on the foot pedal 10 and can keep balance, the foot pedal 10 vertically and uniformly applies pressure to the axial direction of the movable joint structure 13, the movable joint structure 13 can bear large pressure on the front surface and keep stable, and if the sole steps on the foot pedal 10 are not balanced, the pressure applied to the movable joint structure 13 by the foot pedal 10 is not uniform, and the two half joint structures of the movable joint structure 13 can relatively deflect and incline in a certain direction. In order to make the pedal plate 10 in a flat state at ordinary times, 4 small return springs (tension springs) 16 can be further installed around the pedal plate 10, as shown in fig. 7, one end of each return spring 16 is connected to one edge of the pedal plate 10, and the other end is installed and fixed on the platform 1, so as to generate small uniform tension force around the pedal plate, make the pedal plate in a flat state at ordinary times, and after being stepped on, when the sole leaves, the pedal plate can automatically restore to the flat state.

The movable connector 11 may further have an alarm device, and when detecting that the movable connector 11 deflects more than a set angle, an alarm signal is output to remind a user of the deflection. This can be done using a travel switch or photo-detection.

When the waist fixing device is used, the waist fixing device 3 is arranged on the waist of a user (the waist fixing device is arranged on the shoulder and the neck of the user in a wearing mode), the other end of the tension belt 4 is arranged and fixed on the platform, the user stands upright, one foot pedals one pedal, (both single foot and double foot can be used, the difficulty is higher when the user stands on one foot), and the elastic force of the elastic device on the tension belt is overcome to enable the user to form a standing state. Because the unstable movable connector 11 exists between the pedal plate 10 and the platform 1, the pedal plate is easy to deflect and incline when being unevenly treaded, and a user needs to make the user step the pedal plate 10 to maintain a stable and balanced standing state, so that the unstable stress condition that the human body stands under the gravity can be simulated under the weightless environment, the motor nerve center of the user is forced to transfer the lower limb muscles and the body core muscle groups to control the balance, and the coordination control capability of the motor nerve of the user on the lower limb muscles and the body core muscle groups when standing is trained.

The training device is further improved to be a walking training device, as shown in fig. 8, a plurality of foot pedals 10 are arranged on the platform 1, the foot pedals are arranged in at least two rows and can be used for standing or walking back and forth, four or five steps can be walked in one direction, and movable connectors are also arranged between the foot pedals 10 and the platform 1. Two guide rails 17 for movably connecting one end of the tension belt are also arranged on the platform (the end of the tension belt 4 which is originally fixed on the platform is connected, and the other end of the tension belt 4 is still connected to the waist fixing device 3 through the elastic device 5). The guide rail 17 can be fastened to a slide 19 connected to the end of the tension belt 4 and can be used for moving the slide 19 of the end of the tension belt on the groove 18 of the guide rail. The structure of the guide rail 17 is shown in fig. 9, a groove 18 is formed on the guide rail, and the notch of the groove 18 is narrow. One end of the tension belt 4 is connected with a slide block 19, the slide block 19 can be in a spherical shape, a square shape or other shapes, the width of the slide block 19 is larger than the width of the notch of the groove, so that the slide block 19 can be installed in the groove 18, and the notch of the groove is narrow and cannot be pulled out, but can slide in the groove 18.

When the improvement is adopted, the gravity simulator is not fixedly arranged on the platform but movably connected on the guide rail, the structures and the uses of other parts are the same, and the gravity simulator can also be provided with the tension adjusting device and the shoulder fixing device, and the structures and the uses are also the same.

When the user is standing still, the tension band 4 only has tension towards the vertical direction of the guide rail 17, and the notch of the groove of the guide rail 17 can be buckled with the slide block 19 at the end of the tension band to ensure that the slide block 19 can not be pulled out, so that the tension on the tension band 4 can be maintained to maintain the simulated gravity on the body. When the user takes a step, the position changes horizontally, the tension belt 4 has tension towards the horizontal direction of the guide rail 17, the slide block 19 connected with the tension belt 4 can be pulled to move to a new position in the groove 18 of the guide rail, and the tension belt keeps the tension to the user.

Therefore, the design has the effects that when the user finishes the balanced standing state, the user can slowly step off the two feet to walk on the two rows of unstable pedals and strives to keep the feet stably balanced when stepping on the pedals, so that the unstable stress condition of walking under the gravity of the human body can be simulated in a weightless environment, the motor nerve center of the user is forced to transfer the muscles of the lower limbs and the core muscles of the body to control balance and stability, the motor nerve center of the user is forced to transfer the coordination control capability of the muscles of the lower limbs and the core muscles of the body when the user walks, the coordination control of the swing arms of the upper limbs can be trained on the existing running machine, the motor function of the astronaut can be favorably maintained, and the astronaut can quickly recover the normal walking capability when returning to the earth ground.

Claims

1. A muscle training device comprises a platform and a gravity simulation device; the gravity simulator is used for connecting the body of a user and generating a pulling force for pulling the body to the platform; the method is characterized in that: the gravity simulation device comprises a waist fixing device and at least two tension belts; the waist fixing device is arranged at the waist of a user; one end of the tension belt is connected to the waist fixing device, and the other end of the tension belt is fixedly arranged on the platform; the tension belt is provided with (connected with) an elastic device which is used for generating tension for pulling the waist fixing device to the platform through elasticity.

2. The muscle training device of claim 1, wherein: the gravity simulator is also provided with a shoulder fixing device, the shoulder fixing device is arranged on the shoulder of a user, and a second elastic device is arranged between the shoulder fixing device and the waist fixing device, so that a pulling force which is mutually pulled is generated between the shoulder fixing device and the waist fixing device. And the tension belt is also provided with a tension adjusting device capable of adjusting the tension.

3. A motor nerve training device comprises a platform and a gravity simulation device; the gravity simulator is used for connecting the body of a user and generating force for pulling the body to the platform; the method is characterized in that: a pedal is arranged on the platform, and a movable connector is arranged between the pedal and the platform.

4. A motor training device according to claim 3, characterized in that: the movable connector is used for mounting and connecting the pedal plate to the platform in a movable mode, can keep stable when the vertical direction of the pedal plate is subjected to uniform pressure, and can damage the stable state when the vertical direction of the pedal plate is continuously subjected to non-uniform pressure, so that the pedal plate deflects.

5. A motor training device according to claim 3 or 4, characterized in that: the movable connector adopts a spring, one end of the spring is fixedly connected with the pedal, and the other end of the spring is fixedly arranged on the platform; or the movable connector adopts a movable joint structure, the movable joint structure is mainly formed by two arc-shaped contact surfaces which are movably contacted with each other, one end of the movable joint structure is fixedly connected with the pedal, and the other end of the movable joint structure is fixedly arranged on the platform.

6. A motor training device according to claim 3 or 4 or 5, characterized in that: the movable connector is also provided with an alarm device, and when the movable connector is detected to incline by more than a set angle, an alarm signal is output.

7. A motor training device according to claim 3, characterized in that: the gravity simulation device comprises a waist fixing device and at least two tension belts; the waist fixing device is arranged at the waist of a user; one end of the tension belt is connected to the waist fixing device, and the other end of the tension belt is fixedly arranged on the platform; the tension belt is provided with (connected with) an elastic device which is used for generating tension for pulling the waist fixing device to the platform through elasticity.

8. A motor training device according to claim 3, characterized in that: the platform is provided with a plurality of foot pedals which are arranged in at least two rows, and a movable connector is arranged between each foot pedal and the platform; two guide rails are also arranged on the platform; the gravity simulation device comprises a waist fixing device and at least two tension belts, wherein the waist fixing device is arranged on the waist of a user; one end of the tension belt is connected to the waist fixing device, and the other end of the tension belt is movably connected to the guide rail; the guide rail can buckle one end of the tension belt and allow the end of the tension belt to move on the guide rail; the tension belt is provided with (connected with) an elastic device which is used for generating tension for pulling the waist fixing device to the platform through elasticity.

9. A motor training device according to claim 8, characterized in that: the guide rail is provided with a groove, the notch of the groove is narrow, one end of the tension belt is connected with a sliding block, and the sliding block is installed in the groove and can slide in the groove.

10. A motor training device according to claim 7 or 8, characterized in that: the gravity simulator is also provided with a shoulder fixing device, the shoulder fixing device is arranged on the shoulder of a user, and a second elastic device is arranged between the shoulder fixing device and the waist fixing device, so that a pulling force which is mutually pulled is generated between the shoulder fixing device and the waist fixing device. And the tension belt is also provided with a tension adjusting device capable of adjusting the tension.