A dynamic and static balance evaluation training system

Abstract

This invention relates to the field of medical assistive device technology, and more particularly to a dynamic and static balance assessment and training system. The system includes a base with a training seat movably mounted inside. A single-leg progressive training mechanism is positioned above the base. The single-leg progressive training mechanism comprises two housings and two pedals. The two pedals are located on opposite sides of the training seat. Both housings are fixedly connected to the upper surface of the base, with each housing corresponding to one pedal. The housings and pedals are connected via a transmission assembly, and a linkage assembly is provided between the two housings. By incorporating the single-leg progressive training mechanism, the dynamic movement of the pedals during single-leg training can be achieved, meeting the full rehabilitation cycle needs of patients from basic bipedal training to advanced single-leg training. Simultaneously, it can accurately assess the patient's dynamic and static balance ability in a single-leg state, improving the targeting and effectiveness of rehabilitation training.

Description

Technical Field

[0001] This invention relates to the field of medical assistive device technology, and in particular to a dynamic and static balance assessment and training system. Background Technology

[0002] Balance is a core physiological function for maintaining bodily stability. It relies on the coordinated action of the visual, vestibular, and proprioceptive systems, as well as the muscle groups of the limbs. Proprioception, as a key input, directly determines joint stability and limb flexibility. Dynamic balance testing assesses the body's ability to regulate balance during movement by moderately interfering with proprioception; static balance testing focuses on evaluating the body's ability to maintain balance at rest. Combining both methods provides a comprehensive reflection of the body's balance function level.

[0003] In clinical settings, patients with peripheral nerve injuries, muscle strains, ligament tears, joint capsule injuries, and other conditions often experience loss or weakening of proprioception due to abnormal peripheral sensory input or damage to proprioceptors. This leads to problems such as decreased joint stability and insufficient limb mobility, severely impacting basic daily living abilities such as walking and climbing stairs, and hindering the rehabilitation process.

[0004] Currently, most dynamic and static balance assessment and training systems on the market are designed primarily for bipedal synchronous training, resulting in a relatively simple training mode that only meets basic balance training needs. However, for patients in the rehabilitation process, as their balance ability gradually improves, they require advanced training such as single-leg standing and dynamic adjustment of the single leg to further strengthen proprioception and limb control. Existing devices lack dedicated mechanisms for advanced single-leg training, cannot achieve dynamic adjustment during single-leg training, and struggle to meet the personalized training needs of patients at different stages of rehabilitation. They also cannot accurately assess a patient's balance ability in a single-leg state, thus limiting the effectiveness and applicability of rehabilitation training. Summary of the Invention

[0005] To address the aforementioned shortcomings, this invention provides a dynamic and static balance assessment and training system that enables safe and reliable single-leg progressive training.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dynamic and static balance assessment and training system, including a base, a training seat is movably installed inside the base, and a single-leg progressive training mechanism is provided above the base;

[0007] The single-leg advanced training mechanism includes two housings and two pedals. The two pedals are located on both sides of the training seat. The two housings are fixedly connected to the upper surface of the base, and the housings correspond one-to-one with the pedals. The housings and pedals are connected by a transmission component, and a linkage component is provided between the two housings.

[0008] Preferably, the transmission assembly includes a first support plate fixedly installed inside the housing, a reciprocating screw rotatably installed between the first support plate and the housing, a threaded plate threaded to the outer surface of the reciprocating screw, an L-shaped sliding plate fixedly connected to the bottom surface of the threaded plate, and the L-shaped sliding plate slidably connected inside the housing.

[0009] Preferably, a first wedge plate is fixedly connected to the upper surface of the L-shaped slide plate, a movable plate is slidably connected to the side of the L-shaped slide plate near the pedal, and a second wedge plate adapted to the first wedge plate is provided above the movable plate, and the inclined surface of the second wedge plate is in contact with the inclined surface of the first wedge plate.

[0010] Preferably, a second support plate is fixedly connected to the side of the second wedge plate near the pedal, a spring is fixedly connected to the bottom surface of the second support plate, the other end of the spring is fixedly connected to the moving plate, a guide cylinder is fixed to the lower surface of the second support plate, a guide rod is slidably arranged inside the guide cylinder, and the guide rod is fixed to the upper surface of the moving plate.

[0011] Preferably, a baffle is fixedly connected to the outer surface of the second wedge plate, a sliding groove is provided on the top of the base, the second wedge plate and the baffle are slidably connected to the sliding groove, and a Z-shaped connecting plate is fixedly connected to the upper surface of the second wedge plate, the outer surface of the Z-shaped connecting plate is fixedly connected to the side of the pedal near the housing.

[0012] Preferably, the linkage component includes a motor mounting plate fixedly connected to the outer surface of one of the housings, a servo motor is mounted on the motor mounting plate, a drive shaft is fixedly connected to the output end of the servo motor, a first one-way bearing and a second one-way bearing are fixedly mounted on the outer surface of the drive shaft, and the first one-way bearing and the second one-way bearing rotate in opposite directions, and a first synchronous pulley is fixedly mounted on the outer ring of both the first one-way bearing and the second one-way bearing.

[0013] Preferably, a second synchronous pulley is fixedly connected to the outer surface of both reciprocating lead screws, and the second synchronous pulley and the first synchronous pulley are connected by a synchronous belt drive.

[0014] Preferably, an anti-slip pad is fixedly installed on the upper surface of the pedal.

[0015] Preferably, a support is fixedly connected to the back of the base, a placement rack is fixedly connected to the outer surface of the support, a laptop computer is mounted on the placement rack, and a display screen is mounted on the top of the support.

[0016] Preferably, a column is fixedly connected to the top of the support, and a steel wire rope is installed on the column through a pulley system. One end of the steel wire rope is fixedly connected to a hanging plate, and a hook is installed on the bottom surface of the hanging plate. A handrail is fixedly connected to the upper surface of the base.

[0017] The beneficial effects of this invention are:

[0018] ① By setting up a single-leg progressive training mechanism, the dynamic movement of the pedal can be realized during single-leg training, meeting the full rehabilitation cycle needs of patients from basic two-leg training to advanced single-leg training. At the same time, it can accurately assess the dynamic and static balance ability of patients in single-leg state, and improve the pertinence and effectiveness of rehabilitation training.

[0019] ② By setting up a transmission component, the horizontal movement and vertical lifting of the pedal can be achieved through mechanical transmission, thus automating the movement of the pedal. By setting up a linkage component, a single servo motor can be used to control the independent movement of the pedals on both sides. This not only enables precise movement of the pedal on one side during single-leg training, but also effectively reduces procurement and subsequent maintenance costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the hidden single-leg advanced training mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the single-leg advanced training mechanism of the present invention;

[0023] Figure 4 This is a schematic diagram of the interior of the casing of the present invention;

[0024] Figure 5 This is a schematic diagram showing the connection between the L-shaped sliding plate and the threaded plate of the present invention;

[0025] Figure 6 This is a schematic diagram showing the connection between the first wedge plate and the second wedge plate of the present invention;

[0026] Figure 7 This is a schematic diagram of the transmission component of the present invention.

[0027] In the diagram: 1-Base; 2-Bracket; 3-Column; 4-Wire rope; 5-Hanging plate; 6-Hook; 7-Placement rack; 8-Laptop; 9-Display screen; 10-Training seat; 11-Armrest; 12-Shell; 13-Pedal; 14-First support plate; 15-Reciprocating screw; 16-Threaded plate; 17-L-shaped slide plate; 18-First wedge plate; 19-Moving plate; 20-Second wedge plate; 21-Second support plate; 22-Spring; 23-Baffle; 24-Z-shaped connecting plate; 25-Anti-slip mat; 26-Motor mounting plate; 27-Servo motor; 28-Drive shaft; 29-First one-way bearing; 30-Second one-way bearing; 31-First synchronous pulley; 32-Second synchronous pulley; 33-Slide groove; 40-Guide cylinder; 41-Guide rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific examples described herein are merely illustrative and not intended to limit the invention. The directional terms used in the following embodiments, such as up, down, left, right, front, or back, are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the invention. Furthermore, in all embodiments, the same reference numerals denote the same elements.

[0029] like Figures 1-7 As shown, a dynamic and static balance assessment and training system includes a base 1, and a training seat 10 is movably installed inside the base 1. The training seat 10 can tilt and move to facilitate patients to perform basic dynamic and static balance training of both feet.

[0030] A support frame 2 is fixedly connected to the back of the base 1. A placement rack 7 is fixedly connected to the outer surface of the support frame 2. A laptop computer 8 is mounted on the placement rack 7. A display screen 9 is mounted on the top of the support frame 2. The laptop computer 8 has built-in balance assessment software that can collect various balance parameters such as changes in the patient's center of gravity and balance maintenance time during training through sensors set in the training seat 10, and analyze and process the data to generate an assessment report. The display screen 9 faces the training area, making it convenient for the patient to view training instructions, balance data, and other information during training, and also allowing medical staff to observe the patient's training status and data feedback in real time.

[0031] The laptop 8 features built-in balance assessment software and sensors that are wirelessly connected.

[0032] A column 3 is fixedly connected to the top of the support frame 2. A steel wire rope 4 is installed on the column 3 via a pulley system. One end of the steel wire rope 4 is fixedly connected to a hanging plate 5. A hook 6 is installed on the bottom surface of the hanging plate 5. A handrail 11 is fixedly connected to the upper surface of the base 1. The column 3 is a hollow metal tube structure, and its bottom is welded and fixed to the top of the support frame 2. The top of the column 3 is bent at a certain angle and a fixed pulley is installed. A guide wheel is set at the bend inside the column 3. The pulley system also includes a movable pulley set inside the support frame 2. One end of the steel wire rope 4 is fixed to the bottom of the column 3, and the other end passes over the movable pulley, the guide wheel, and the fixed pulley before connecting to the hanging plate 5. 2. An internal telescopic pole is installed. The output end of the telescopic pole is connected to a movable pulley. The telescopic pole moves the movable pulley up and down, thereby realizing the raising and lowering of the wire rope 4 and the lifting and lowering of the hanging plate 5. There are four hooks 6 on the bottom surface of the hanging plate 5, located at the four corners of the hanging plate 5, for hanging straps. The straps can be fixed to the patient's waist or chest to provide auxiliary support for the patient. It is especially suitable for patients with weak balance ability to prevent patients from falling due to imbalance during training. The height of the handrail 11 is adapted to the hand position of an adult when standing. Patients can naturally hold the handrail 11 during training to further improve the stability when standing.

[0033] A single-leg advanced training mechanism is provided above the base 1. The single-leg advanced training mechanism includes two shells 12 and two pedals 13. The two pedals 13 are located on both sides of the training seat 10. The two shells 12 are fixedly connected to the upper surface of the base 1, and the shells 12 and pedals 13 correspond one-to-one. Specifically, the pedals 13 are symmetrically arranged on both sides of the training seat 10, which can be used to train the patient's left foot and right foot respectively, so as to realize the independent operation of single-leg training on one side without interference.

[0034] The housing 12 and the pedal 13 are connected by a transmission assembly. The transmission assembly includes a first support plate 14 fixedly installed inside the housing 12. A reciprocating screw 15 is rotatably installed between the first support plate 14 and the housing 12. A threaded plate 16 is threadedly connected to the outer surface of the reciprocating screw 15. An L-shaped slide plate 17 is fixedly connected to the bottom surface of the threaded plate 16 and is slidably connected inside the housing 12. The first support plate 14 is vertically fixed inside the housing 12 to provide a stable rotation support point for the reciprocating screw 15, ensuring that the reciprocating screw 15 does not deviate during rotation. A matching sliding groove is provided on the inner wall of the housing 12 at the position corresponding to the L-shaped slide plate 17, so that the L-shaped slide plate 17 can slide stably along the inside of the housing 12 under the drive of the threaded plate 16, avoiding jamming.

[0035] A first wedge plate 18 is fixedly connected to the upper surface of the L-shaped slide plate 17. A movable plate 19 is slidably connected to the side of the L-shaped slide plate 17 near the pedal 13. A second wedge plate 20 adapted to the first wedge plate 18 is provided above the movable plate 19, and the inclined surface of the second wedge plate 20 is in contact with the inclined surface of the first wedge plate 18. The inclined surface of the first wedge plate 18 faces the training seat 10, and its inclined angle can be set in the range of 30° to 60°, preferably 45°, to ensure that the inclined surfaces of the first wedge plate 18 and the second wedge plate 20 can fit tightly and transmit smoothly. The movable plate 19 is slidably connected to the L-shaped slide plate 17, so that the movable plate 19 and the second wedge plate 20 can move flexibly relative to the L-shaped slide plate 17 in the horizontal direction, providing a basis for the first wedge plate 18 to squeeze the second wedge plate 20 to achieve vertical lifting and lowering.

[0036] The second wedge plate 20 is fixedly connected to a second support plate 21 on the side near the pedal 13. One end of a spring 22 is fixedly connected to the bottom surface of the second support plate 21, and the other end of the spring 22 is fixedly connected to the moving plate 19. The second support plate 21 is a horizontally arranged flat plate structure. The spring 22 is vertically connected between the bottom surface of the second support plate 21 and the upper surface of the moving plate 19. When the spring 22 is in its natural state, the inclined surface of the second wedge plate 20 is in contact with the inclined surface of the first wedge plate 18. This provides elastic support for the second wedge plate 20 and allows the second wedge plate 20 to quickly return to its original position when the first wedge plate 18 moves in the opposite direction, ensuring the flexibility of the pedal 13's up and down movement.

[0037] The lower surface of the second support plate 21 is fixed with a guide cylinder 40, and a guide rod 41 is slidably disposed inside the guide cylinder 40. The guide rod 41 is fixed to the upper surface of the moving plate 19.

[0038] A baffle 23 is fixedly connected to the outer surface of the second wedge plate 20. A groove 33 is provided on the top of the base 1. Both the second wedge plate 20 and the baffle 23 are slidably connected to the groove 33. A Z-shaped connecting plate 24 is fixedly connected to the upper surface of the second wedge plate 20. The outer surface of the Z-shaped connecting plate 24 is fixedly connected to the side of the pedal 13 near the housing 12. The baffle 23 is vertically fixed to the side of the second wedge plate 20 away from the training seat 10. It can contact the first wedge plate 18 when the first wedge plate 18 moves in the opposite direction, thereby driving the second wedge plate 20. The pedal 13 and base 1 are horizontally reset. The groove 33 on the top of the base 1 is a long strip groove. Its length is adapted to the maximum horizontal movement distance of the pedal 13, and its width is matched with the thickness of the second wedge plate 20 plus the baffle 23. This ensures that the second wedge plate 20 and the baffle 23 slide without jamming in the groove 33, while limiting the horizontal movement direction of the second wedge plate 20 to avoid deviation. The design of the Z-shaped connecting plate 24 can adapt to the installation height difference between the pedal 13 and the second wedge plate 20, ensuring that the pedal 13 can remain horizontal.

[0039] A linkage assembly is provided between the two housings 12. The linkage assembly includes a motor mounting plate 26 fixedly connected to the outer surface of one of the housings 12. A servo motor 27 is mounted on the motor mounting plate 26. The output end of the servo motor 27 is fixedly connected to a drive shaft 28. A first one-way bearing 29 and a second one-way bearing 30 are fixedly mounted on the outer surface of the drive shaft 28, and the rotation directions of the first one-way bearing 29 and the second one-way bearing 30 are opposite. A first synchronous pulley 31 is fixedly mounted on the outer ring of both the first one-way bearing 29 and the second one-way bearing 30. The motor mounting plate 26 has an L-shaped structure, with one end fixed to the outer surface of the housing 12 by bolts, and the other end... The servo motor 27 is mounted on a flat surface to ensure its stability after installation. The first one-way bearing 29 and the second one-way bearing 30 are spaced apart and sleeved on the drive shaft 28. The inner rings of both bearings are fixed to the drive shaft 28, and the outer rings are fixed to the first synchronous pulley 31. When the drive shaft 28 rotates forward, the inner ring of the first one-way bearing 29 drives the outer ring to rotate, while the inner ring of the second one-way bearing 30 rotates but the outer ring does not rotate, i.e., it idles. When the drive shaft 28 rotates in reverse, the inner ring of the second one-way bearing 30 drives the outer ring to rotate, while the inner ring of the first one-way bearing 29 rotates but the outer ring does not rotate. This allows the forward and reverse rotation of the servo motor 27 to control the movement of the pedals 13 on both sides.

[0040] The outer surfaces of the two reciprocating lead screws 15 are fixedly connected with second synchronous pulleys 32, and the second synchronous pulleys 32 and the first synchronous pulleys 31 are connected by a synchronous belt drive. The diameter of the second synchronous pulleys 32 is the same as that of the first synchronous pulleys 31 to ensure that the rotational speed is consistent during the transmission process. The synchronous belt is made of high-strength rubber and has anti-slip teeth on its surface. It meshes with the teeth of the first synchronous pulleys 31 and the second synchronous pulleys 32 to avoid slippage during the transmission process and ensure that the power of the servo motor 27 can be accurately transmitted to the reciprocating lead screws 15 to achieve precise movement of the pedal 13.

[0041] An anti-slip pad 25 is fixedly installed on the upper surface of the pedal 13. The anti-slip pad 25 is made of medical-grade anti-slip rubber material, and the surface is set with raised anti-slip texture. It can increase the friction between the patient's foot and the pedal 13, effectively preventing the risk of slipping due to sweaty feet or uneven force during training. It also has good softness and elasticity, which can cushion the pressure on the patient's feet and improve the comfort during training. At the same time, the medical-grade material is non-toxic, odorless and easy to clean, which meets the hygiene requirements of medical equipment.

[0042] Working principle

[0043] When patients perform basic bipedal training, they stand on the training seat 10 inside the base 1, holding onto the handrails 11 on both sides to maintain basic balance. The training seat 10 can tilt and move, allowing patients to maintain balance by adjusting their center of gravity, thus achieving static or dynamic basic balance training. During this time, the laptop 8 collects data such as changes in the patient's center of gravity and the time it takes to maintain balance through sensors. After analysis and processing, an evaluation report is generated and displayed in real time on the screen 9. Medical staff can adjust the training intensity based on the data. For patients with weaker balance abilities, the patient's body can be secured using the hanging board 5 and hooks 6 at the top of the support 2, along with straps. At the same time, the telescopic pole can be adjusted to lower the hanging board 5 to a suitable height, providing auxiliary support and improving training safety.

[0044] When a patient needs to perform single-leg advanced training (taking right-leg training as an example), the patient first stands on the training seat 10 with their right foot, and then places their left foot on the anti-slip mat 25 of the pedal 13. At this time, the patient's center of gravity is controlled on the right foot, controlling the servo motor 27 to rotate forward. The servo motor 27 drives the drive shaft 28 to rotate forward. At this time, the inner ring of the first one-way bearing 29 drives the outer ring and the first synchronous pulley 31 to rotate, while the second one-way bearing 30 rotates freely. The first synchronous pulley 31 drives the second synchronous pulley 32 on the corresponding side of the reciprocating screw 15 to rotate via the synchronous belt. This drives the reciprocating screw 15 to rotate, and the rotation of the reciprocating screw 15 causes the threaded plate 16 to move axially along the reciprocating screw 15. The threaded plate 16 drives the L-shaped slide plate 17 and the first wedge plate 18 to move towards the training seat 10. During the movement of the first wedge plate 18, the inclined surface fits together and drives the second wedge plate 20, the Z-shaped connecting plate 24, and the pedal 13 to move horizontally towards the training seat 10 along the slide groove 33 of the base 1. When the Z-shaped connecting plate 24 moves to the innermost end of the slide groove 33, the pedal 13 moves above the training seat 10, and the servo... Motor 27 continues to rotate forward, driving the L-shaped slide plate 17 and the first wedge plate 18 to continue moving. The inclined surface of the first wedge plate 18 presses against the inclined surface of the second wedge plate 20, causing the second wedge plate 20 to rise vertically. The second wedge plate 20 drives the Z-shaped connecting plate 24 and the pedal 13 to rise synchronously. At the same time, the second support plate 21 stretches the spring 22, continuing to control the servo motor 27 to rotate forward. The reciprocating screw 15 drives the threaded plate 16 to continue moving. After moving to the maximum extent, the reciprocating screw 15 continues to rotate, driving the threaded plate 16 and the L-shaped slide plate 17 to continue moving. Plate 17 and the first wedge plate 18 move in opposite directions, and spring 22 contracts under the action of elastic restoring force, causing the second wedge plate 20 and pedal 13 to descend. When the first wedge plate 18 moves in opposite directions to contact the baffle 23, it continues to drive the second wedge plate 20, Z-shaped connecting plate 24 and pedal 13 to move in opposite directions along the slide 33 until they are reset. This enables the patient's left foot to move horizontally and vertically. In order to resist the imbalance caused by the movement of the left foot with the pedal, the muscles of the patient's right leg and foot make corresponding coordinated posture adjustments. This process highly simulates the unstable situation encountered in daily life (such as the left foot suddenly stepping on a smooth object and slipping or stepping on an escalator), thereby enabling the patient's right foot to undergo advanced training.

[0045] If single-leg training with the left foot is required, the patient first stands on the training seat 10 with their left foot, and then places their right foot on the anti-slip mat 25 of the pedal 13. At this time, the patient's center of gravity is controlled on the left foot, and the servo motor 27 is reversed. At this time, the inner ring of the second one-way bearing 30 drives the outer ring and the first synchronous pulley 31 to rotate, while the first one-way bearing 29 rotates freely. Through the synchronous belt drive, it drives the reciprocating screw 15 on the other side to rotate, thereby realizing the horizontal and vertical movement of the right pedal 13. The operation process is the same as the right foot training.

[0046] Throughout the training process, the laptop 8 collects data in real time on the patient's center of gravity changes and balance maintenance time when standing on one leg. After analysis, it generates a single-leg balance ability assessment report, which is displayed on the screen 9. Medical staff can adjust training parameters (such as step height, training duration, etc.) based on the assessment results to develop personalized rehabilitation training plans for patients.

[0047] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above-described embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A dynamic and static balance assessment and training system, characterized in that, Includes a base (1), a training seat (10) is movably installed inside the base (1), and a single-leg advanced training mechanism is provided above the base (1); The training seat (10) is equipped with sensors to collect various balance parameters of the patient during training, and to analyze and process them to generate an evaluation report; The single-leg advanced training mechanism includes two housings (12) and two pedals (13). The two pedals (13) are located on both sides of the training seat (10). The two housings (12) are fixedly connected to the upper surface of the base (1), and the housings (12) and pedals (13) correspond one-to-one. The housings (12) and pedals (13) are connected by a transmission component. A linkage component is provided between the two housings (12). The transmission assembly includes a first support plate (14) fixedly installed inside the housing (12), a reciprocating screw (15) rotatably installed between the first support plate (14) and the housing (12), a threaded plate (16) threadedly connected to the outer surface of the reciprocating screw (15), an L-shaped sliding plate (17) fixedly connected to the bottom surface of the threaded plate (16), and the L-shaped sliding plate (17) slidably connected inside the housing (12); The upper surface of the L-shaped slide plate (17) is fixedly connected to a first wedge plate (18), and the side of the L-shaped slide plate (17) near the pedal (13) is slidably connected to a movable plate (19). A second wedge plate (20) adapted to the first wedge plate (18) is provided above the movable plate (19), and the inclined surface of the second wedge plate (20) is in contact with the inclined surface of the first wedge plate (18). A second support plate (21) is fixedly connected to the side of the second wedge plate (20) near the pedal (13). A spring (22) is fixedly connected to the bottom surface of the second support plate (21). The other end of the spring (22) is fixedly connected to the moving plate (19). A guide cylinder (40) is fixedly connected to the lower surface of the second support plate (21). A guide rod (41) is slidably arranged inside the guide cylinder (40). The guide rod (41) is fixed to the upper surface of the moving plate (19). A baffle (23) is fixedly connected to the outer surface of the second wedge plate (20), and a sliding groove (33) is provided on the top of the base (1). The second wedge plate (20) and the baffle (23) are slidably connected to the sliding groove (33). A Z-shaped connecting plate (24) is fixedly connected to the upper surface of the second wedge plate (20), and the outer surface of the Z-shaped connecting plate (24) is fixedly connected to the side of the pedal (13) near the housing (12). The linkage assembly includes a motor mounting plate (26) fixedly connected to the outer surface of one of the housings (12). A servo motor (27) is mounted on the motor mounting plate (26). The output end of the servo motor (27) is fixedly connected to a drive shaft (28). A first one-way bearing (29) and a second one-way bearing (30) are fixedly mounted on the outer surface of the drive shaft (28). The first one-way bearing (29) and the second one-way bearing (30) rotate in opposite directions. A first synchronous pulley (31) is fixedly mounted on the outer ring of both the first one-way bearing (29) and the second one-way bearing (30). The outer surfaces of the two reciprocating lead screws (15) are fixedly connected with second synchronous pulleys (32), and the second synchronous pulleys (32) and the first synchronous pulleys (31) are connected by synchronous belt drive.

2. The dynamic and static balance evaluation and training system according to claim 1, characterized in that, An anti-slip pad (25) is fixedly installed on the upper surface of the pedal (13).

3. The dynamic and static balance evaluation and training system according to claim 1, characterized in that, A bracket (2) is fixedly connected to the back of the base (1), a placement rack (7) is fixedly connected to the outer surface of the bracket (2), a laptop computer (8) is mounted on the placement rack (7), and a display screen (9) is mounted on the top of the bracket (2).

4. The dynamic and static balance evaluation and training system according to claim 3, characterized in that, The top of the bracket (2) is fixedly connected to a column (3), and the column (3) is equipped with a steel wire rope (4) through a pulley system. One end of the steel wire rope (4) is fixedly connected to a hanging plate (5), and a hook (6) is installed on the bottom surface of the hanging plate (5). A handrail (11) is fixedly connected to the upper surface of the base (1).

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