Muscle strength measuring equipment for exercise physiology

Abstract

The invention discloses exercise physiology muscle strength measuring equipment which comprises a rack, a seat is arranged below the rack, the exercise physiology muscle strength measuring equipment further comprises a leg muscle structure, a wrist strength structure and an arm muscle strength structure, the lower end of the rack is rotationally connected with the leg muscle structure, and a screw is fixedly connected to an output shaft of a double-output-shaft motor; a leg supporting frame in the leg muscle structure moves through a double-output-shaft motor, the leg supporting frame is used for measuring leg muscle strength, a rotating motor is arranged at the other end of the rack, an output shaft of the rotating motor is fixedly connected with a wrist strength structure, and the wrist strength structure measures wrist strength. An arm muscle strength structure is arranged on one side of the wrist strength structure, a gear in the arm muscle strength structure is fixedly connected with the middle of an output shaft of the rotating motor, and the arm muscle strength is measured through the arm muscle strength structure. Excessive muscles of the human body are measured through the strength measuring instrument, and the flexibility of the device and the comprehensiveness of muscle strength measurement are improved.

Description

Technical Field

[0001] The invention relates to the technical field of sports physiology, in particular to a sports physiology muscle strength measuring device. Background Art

[0002] Exercise physiology studies the changes in the structure and function of the human body under the influence of physical activities and exercise training. Human muscles are important parts of the human body that support human movement, and human muscle strength measurement is one of the most basic methods for examining limb movement function. It measures the strength of the subject's muscles or muscle groups during active movement to evaluate the functional state of the muscles, including leg muscles, arm muscles and other muscle parts. The existing muscle strength measurement equipment has poor measurement flexibility. A single measurement device can only measure the muscle strength of a single position on the human body and cannot comprehensively measure the human muscle strength. Therefore, the following solutions are proposed to address the above technical problems. Summary of the invention

[0003] The purpose of the present invention is to provide a sports physiology muscle strength measuring device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a sports physiology muscle strength measurement device, comprising: a frame, the frame is in an "L" shape, a seat is arranged under the frame, and also includes: a leg muscle structure, a wrist strength structure, and an arm muscle strength structure. The lower end of the frame is rotatably connected to the leg muscle structure, a dual-output shaft motor is arranged in the leg muscle structure, and a screw is fixedly connected on the output shaft of the dual-output shaft motor. The movement of the leg support frame in the leg muscle structure is realized by the dual-output shaft motor, and the leg support frame is used to measure the leg muscle strength. A rotating motor is arranged at the other end of the frame, and the output shaft of the rotating motor is fixedly connected to the wrist strength structure. The wrist strength structure measures the wrist strength. An arm muscle strength structure is arranged on one side of the wrist strength structure, and the gear in the arm muscle strength structure is fixedly connected to the middle part of the output shaft of the rotating motor. The arm muscle strength is measured through the arm muscle strength structure.

[0005] Preferably, the leg muscle structure includes: a connecting arm, a dual-output shaft motor, and a leg support frame, one end of the connecting arm is rotatably connected to the lower end of the frame, the other end of the connecting arm is fixedly connected to the motor bin, both sides of the motor bin are fixedly connected to the first rotating gear, both sides of the motor bin are fixedly connected to the moving tube, the moving tube is installed cocentrically with the first rotating gear, a magnet is fixedly installed in the moving tube, the inside of the motor bin is fixedly connected to the dual-output shaft motor, one end of the screw is fixedly connected to the dual output shafts of the dual output shaft motor, the screw root, the other end of the screw is fixedly connected to the first limit block, the surface of the screw is threadedly connected to the screw nut, and the screw nut is fixedly connected to the first connecting One end of the connecting rod and the other end of the first connecting rod are fixedly connected to the movable rod, the movable rod is located inside the movable tube, a notch is set at the lower end of the movable tube, the movable rod is fixedly connected to one end of the second connecting rod, the other end of the second connecting rod extends out of the movable tube and is fixedly connected to the movable sleeve, the movable sleeve is sleeved on the outer surface of the movable tube, one end of the movable sleeve close to the motor bin is fixedly connected to the second rotating tooth, the second rotating tooth corresponds to the first rotating tooth on the motor bin, the movable sleeve is fixedly connected to one end of the third connecting rod, one side surface of the third connecting rod is fixedly connected to one side surface of the leg support frame, and the inner surface of the leg support frame is detachably connected to the leg pad.

[0006] Preferably, the wrist strength structure includes: a rotating motor, a wrist frame, and a first slide rail. The rotating motor is fixedly mounted on the frame, one end of the rotating motor output shaft is fixedly connected to the rotating wheel, the rotating wheel is fixedly connected to the wrist frame, the wrist frame is "L"-shaped, an elbow pad is fixedly mounted on the horizontal surface of the wrist frame, the vertical surface of the wrist frame is fixedly connected to one side of the first slide rail, the inner surface of the first slide rail is fixedly connected to one end of the first hydraulic telescopic rod, the other end of the first hydraulic telescopic rod is fixedly connected to the slider, the slider is slidably mounted in the first slide rail, a spring is sleeved on the outer surface of the first hydraulic telescopic rod, one end of the spring is fixedly connected to the inner surface of the first slide rail, the other end of the spring is fixedly connected to the slider, one side of the slider is fixedly connected to the handle, one end of the limit frame is fixedly connected to the frame, the other end of the limit frame is in contact with the wrist frame, and the middle part of the rotating motor output shaft is fixedly connected to the gear in the arm muscle strength structure.

[0007] Preferably, the arm muscle strength structure includes: a gear, a rack, and a tension rope rack. The gear is fixedly installed in the middle of the output shaft of the rotating motor. The gear is meshingly connected to the rack. The rack is slidably installed in the second slide rail. The second slide rail is fixedly connected to the frame. One end of the rack is fixedly connected to the tension rope rod. Both ends of the tension rope rod are fixedly connected to the tension rope rack. The tension rope is fixedly connected to the inner surface of the tension rope rack.

[0008] Preferably, one end of a limit rod is fixedly connected to the lower surface of the motor compartment, and the limit rod limits the moving distance of the leg support frame. A counterweight frame is fixedly installed on one side of the leg support frame, and a counterweight block is detachably installed on the counterweight frame.

[0009] Preferably, an armrest is fixedly installed on the seat, a movable rod end of an electric push rod is fixedly connected under the seat, the fixed rod end of the electric push rod is fixedly connected to the ground, and the height of the seat is adjusted by the electric push rod.

[0010] A sports physiology muscle strength measuring device according to the claim is characterized in that a strength measuring instrument is fixedly installed on a frame, and the strength measuring instrument is electrically connected to a leg muscle structure, a wrist strength structure and an arm muscle strength structure.

[0011] Compared with the prior art, the beneficial effects of the present invention are: the device adopts a combination of leg muscle structure, wrist strength structure and arm muscle strength structure. The leg muscle structure measures the muscle strength of the calf muscle group of the human leg, the wrist strength structure measures the muscle strength of the human wrist, and the arm muscle strength structure measures the muscle strength of the biceps and triceps of the human arm. The extra muscles of the human body are measured by a strength measuring instrument, which improves the flexibility of the device and the comprehensiveness of the muscle strength measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the leg muscle structure of the present invention;

[0014] Figure 3 A schematic diagram of a movable tube notch of the present invention;

[0015] Figure 4 It is a schematic structural diagram of the first rotating tooth connecting component of the present invention;

[0016] Figure 5 It is a schematic diagram of the wrist force structure of the present invention;

[0017] Figure 6 It is a schematic diagram of the internal structure of the first slide rail of the present invention;

[0018] Figure 7 It is a schematic diagram of the connecting components of the rotating motor of the present invention;

[0019] Figure 8 It is a schematic diagram of the arm muscle strength structure of the present invention.

[0020] In the figure: 1, frame, 2, leg muscle structure, 201, connecting arm, 202, motor compartment, 203, first gear, 2031, second gear, 204, moving tube, 2041, magnet, 205, dual output shaft motor, 206, screw, 207, first limit block, 208, screw nut, 209, first connecting rod, 210, movable rod, 211, second connecting rod, 212, movable sleeve, 213, third connecting rod, 214, leg support frame, 215, leg pad, 216, counterweight frame, 217. Limit rod, 3. Wrist strength structure, 301. Rotating motor, 302. Rotating wheel, 303. Wrist frame, 304. First slide rail, 305. Sliding block, 306. Handle, 307. First hydraulic telescopic rod, 308. Spring, 309. Elbow pad, 310. Limit frame, 4. Arm muscle strength structure, 401. Gear, 402. Rack, 403. Second slide rail, 404. Tension rope rod, 405. Tension rope frame, 5. Strength measuring instrument, 6. Chair, 601. Armrest, 602. Electric push rod. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-8 , the present invention provides a technical solution:

[0023] In order to improve the muscle measurement flexibility of the device, a sports physiology muscle strength measurement device is proposed, including: a frame 1, the frame 1 is "L" shaped, the frame 1 is fixedly installed on the ground, a strength measuring instrument 5 is fixedly installed on the frame 1, the strength measuring instrument 5 is connected to the leg muscle structure 2, the wrist strength structure 3 and the arm muscle strength structure 4, and the strength measuring instrument 5 adopts the existing strength measurement technology.

[0024] A seat 6 is arranged below the frame 1 , an armrest 601 is fixedly mounted on the seat 6 , a movable end of an electric push rod 602 is fixedly connected below the seat 6 , a fixed rod end of the electric push rod 602 is fixedly connected to the ground, and the height of the seat 6 is adjusted by the electric push rod 602 .

[0025] It also includes: a leg muscle structure 2, a wrist strength structure 3, and an arm muscle strength structure 4. The lower end of the frame 1 is rotatably connected to the leg muscle structure 2. A dual-output shaft motor 205 is arranged in the leg muscle structure 2. A screw 206 is fixedly connected to the output shaft of the dual-output shaft motor 205. The dual-output shaft motor 205 is used to realize the movement of a leg support frame 214 in the leg muscle structure 2. The leg support frame 214 is used to measure the leg muscle strength. A rotating motor 301 is arranged at the other end of the frame 1. The output shaft of the rotating motor 301 is fixedly connected to the wrist strength structure 3. The wrist strength structure 3 measures the wrist strength. An arm muscle strength structure 4 is arranged on one side of the wrist strength structure 3. The gear 401 in the arm muscle strength structure 4 is fixedly connected to the middle part of the output shaft of the rotating motor 301. The arm muscle strength is measured through the arm muscle strength structure 4.

[0026] The muscle strength of the calf muscles of the human leg is measured through the leg muscle structure 2, the muscle strength of the wrist of the human body is measured through the wrist strength structure 3, and the muscle strength of the biceps and triceps of the human arm is measured through the arm muscle strength structure 4.

[0027] In order to measure the leg muscle strength of the human body, an exercise physiology muscle strength measuring device is proposed, wherein the leg muscle structure 2 includes: a connecting arm 201, a dual-output shaft motor 205, and a leg support frame 214, one end of the connecting arm 201 is rotatably connected to the lower end of the frame 1, and the other end of the connecting arm 201 is fixedly connected to the motor compartment 202, both sides of the motor compartment 202 are fixedly connected to the first rotating teeth 203, both sides of the motor compartment 202 are fixedly connected to the moving tube 204, the moving tube 204 is fixed and does not move, the moving tube 204 is installed cocentrically with the first rotating teeth 203, the interior of the moving tube 204 is hollow, and a magnet 2041 is fixedly installed in the moving tube 204, the magnet 2041 generates an adsorption force on the movable rod 210, thereby preventing the lead screw nut 208 from moving freely on the screw 206.

[0028] The motor compartment 202 is internally fixedly connected to a dual-output shaft motor 205. The dual output shafts of the dual-output shaft motor 205 are fixedly connected to one end of a screw 206. There are two screws 206. The other end of the screw 206 is fixedly connected to a first limit block 207. The first limit block 207 limits the moving distance of the screw nut 208. The surface of the screw 206 is threadedly connected to the screw nut 208.

[0029] The dual output shaft motor 205 drives the screw 206 to rotate, and the rotation of the screw 206 causes the screw nut 208 to move on the surface of the screw 206. The working principle is similar to that of the screw slider.

[0030] The screw nut 208 is fixedly connected to one end of the first connecting rod 209. The movement of the screw nut 208 drives the first connecting rod 209 to move. The other end of the first connecting rod 209 is fixedly connected to the movable rod 210. The movable rod 210 is located inside the movable tube 204. The movement of the first connecting rod 209 drives the movable rod 210 to move inside the movable tube 204. A notch is set at the lower end of the movable tube 204. The two ends of the notch are cross-shaped. The cross-shaped notch can limit the moving distance of the movable rod 210 and realize that the movable rod 210 drives the second connecting rod 211 to rotate;

[0031] The movable rod 210 is fixedly connected to one end of the second connecting rod 211, and the other end of the second connecting rod 211 extends out of the movable tube 204 through the notch at the lower end of the movable tube 204 and is fixedly connected to the movable sleeve 212. The movable sleeve 212 is sleeved on the outer surface of the movable tube 204, and one end of the movable sleeve 212 close to the motor bin 202 is fixedly connected to the second rotating tooth 2031, and the second rotating tooth 2031 corresponds to the first rotating tooth 203 on the motor bin 202. The movable sleeve 212 is fixedly connected to one end of the third connecting rod 213, and one side surface of the third connecting rod 213 is fixedly connected to one side surface of the leg support frame 214, and the inner surface of the leg support frame 214 is detachably connected to the leg pad 215.

[0032] The lower surface of the motor compartment 202 is fixedly connected to one end of a limit rod 217, and the limit rod 217 limits the moving distance of the leg support frame 214. A counterweight frame 216 is fixedly installed on one side of the leg support frame 214, and a counterweight block can be detachably installed on the counterweight frame 216.

[0033] When the leg support frame 214 contacts the limiting rod 217 , the second rotating tooth 2031 and the first rotating tooth 203 may mesh.

[0034] In the initial state, the second rotating tooth 2031 is meshed with the first rotating tooth 203, and the legs are stretched into the leg pad 215. The legs make the movable sleeve 212 rotate on the movable tube 204, and the movable sleeve 212 rotates to drive the second rotating tooth 2031 to rotate, and the second rotating tooth 2031 drives the first rotating tooth 203 to rotate. Thus, the motor compartment 202 and the connecting arm 201 rotate under the action of the legs, and the output force of the muscles of the legs can be measured at the same time;

[0035] Turn on the switch of the dual-output shaft motor 205, the screw 206 rotates, and the screw nut 208 moves on the screw 206. The movement of the screw nut 208 drives the first connecting rod 209 to move. The first connecting rod 209 is fixedly connected to the movable rod 210, and the movable rod 210 moves in the movable tube 204. The second connecting rod 211 moves with the movable rod 210. The movable range of the second connecting rod 211 is the area of ​​the notch at the lower end of the movable tube 204. The movable sleeve 212 is fixedly connected to the second connecting rod 211. As the movable sleeve 212 moves, the second rotating tooth 2031 is disengaged from the first rotating tooth 203, and the third connecting rod 213 drives the leg support frame 214 to move. When the movable rod 210 is adsorbed by the magnet 2041, the dual-output shaft motor 205 stops rotating, and the movable sleeve 212 can rotate around the movable tube 204 alone. At this time, the muscle strength of a single leg can be tested.

[0036] In order to measure the wrist strength of human body, a sports physiology muscle strength measuring device is proposed, wherein the wrist strength structure 3 includes: a rotating motor 301, a wrist frame 303, and a first slide rail 304. The rotating motor 301 is fixedly installed on the frame 1, and one end of the output shaft of the rotating motor 301 is fixedly connected to the rotating wheel 302. The rotation of the output shaft of the rotating motor 301 can drive the rotating wheel 302 to rotate. The rotating wheel 302 is fixedly connected to the wrist frame 303. The wrist frame 303 is "L" shaped. One end of the limit frame 310 is fixedly connected to the frame 1, and the other end of the limit frame 310 is in contact with the wrist frame 303. The rotation of the rotating wheel 302 drives the wrist frame 303 to rotate. The rotation angle of the wrist frame 303 is limited, which is 90 degrees. The limit frame 310 can limit the rotation angle of the wrist frame 303.

[0037] An elbow pad 309 is fixedly installed on the horizontal surface of the wrist frame 303, and the vertical surface of the wrist frame 303 is fixedly connected to one side of the first slide rail 304. The inner surface of the first slide rail 304 is fixedly connected to one end of the first hydraulic telescopic rod 307, and the other end of the first hydraulic telescopic rod 307 is fixedly connected to the slider 305. The slider 305 is slidably installed in the first slide rail 304. A spring 308 is sleeved on the outer surface of the first hydraulic telescopic rod 307, one end of the spring 308 is fixedly connected to the inner surface of the first slide rail 304, and the other end of the spring 308 is fixedly connected to the slider 305. One side of the slider 305 is fixedly connected to the handle 306, and the spring 308 plays a role of buffering and resetting.

[0038] The user places his elbow on the elbow pad 309 and holds the handle 306 to slide the slider 305 counterclockwise on the first slide rail 304. The slider 305 compresses the first hydraulic telescopic rod 307 and the spring 308, thereby measuring the human wrist strength. The handle 306 is moved clockwise, the slider 305 slides clockwise on the first slide rail 304, the spring 308 extends, and the first hydraulic telescopic rod 307 extends.

[0039] In order to measure the muscle strength of human arms, an exercise physiology muscle strength measuring device is proposed, wherein the arm muscle strength structure 4 includes: a gear 401, a rack 402, and a tension rope rack 405. The gear 401 is fixedly installed in the middle of the output shaft of the rotating motor 301, the gear 401 is meshed and connected with the rack 402, the rack 402 is slidably installed in the second slide rail 403, the rotation of the gear 401 drives the rack 402 to slide up and down in the second slide rail 403, the second slide rail 403 is fixedly connected to the frame 1, one end of the rack 402 is fixedly connected to the tension rope rod 404, both ends of the tension rope rod 404 are fixedly connected to the tension rope rack 405, and the inner surface of the tension rope rack 405 is fixedly connected to the tension rope.

[0040] When the output shaft of the rotating motor 301 rotates counterclockwise, the wrist frame 303 rotates counterclockwise, the output shaft of the rotating motor 301 rotates to drive the gear 401 to rotate, the gear 401 rotates to drive the rack 402 to slide downward in the second slide rail 403, the rack 402 drives the tension rope rod 404 to move downward, and the tension rope frame 405 moves downward accordingly, and a person holds the tension rope in the tension rope frame 405 to measure the arm muscle strength.

[0041] Working principle:

[0042] The user adjusts the height of the seat 6 through the electric push rod 602, sits on the seat 6, first extends both legs into the leg pad 215, measures the simultaneous output force of the leg muscles, turns on the dual output shaft motor 205 switch, the screw 206 rotates, the second gear 2031 disengages from the first gear 203, the screw nut 208 moves on the screw 206, the movable sleeve 212 moves along with it, and the third connecting rod 213 drives the leg support frame 214 to move. When the second connecting rod 211 moves to a certain position, the dual output shaft motor 205 stops rotating, and the movable sleeve 212 can rotate alone around the movable tube 204. At this time, the muscle strength of a single leg can be tested.

[0043] Then, the user places his elbow on the elbow pad 309 and holds the handle 306 to slide the slider 305 counterclockwise on the first slide rail 304. The slider 305 compresses the first hydraulic telescopic rod 307 and the spring 308, thereby measuring the human wrist strength. The handle 306 is moved clockwise, the slider 305 slides clockwise on the first slide rail 304, the spring 308 extends, and the first hydraulic telescopic rod 307 extends.

[0044] Finally, the output shaft of the rotating motor 301 rotates counterclockwise, the wrist frame 303 rotates counterclockwise, and at the same time, the tension rope frame 405 moves downward, and the person holds the tension rope in the tension rope frame 405 to measure the arm muscle strength.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sports physiology muscle strength measurement device, comprising: The frame (1) is in an "L" shape, and a seat (6) is arranged below the frame (1), characterized in that it also includes: a leg muscle structure (2), a wrist strength structure (3), and an arm muscle strength structure (4), the lower end of the frame (1) is rotatably connected to the leg muscle structure (2), a dual output shaft motor (205) is arranged in the leg muscle structure (2), and a screw (208) is fixed on the output shaft of the dual output shaft motor (205), and a leg support frame (213) in the leg muscle structure (2) is realized through the dual output shaft motor (205). ) moves, the leg support frame (214) is used to measure the leg muscle strength, a rotating motor (301) is arranged at the other end of the frame (1), the output shaft of the rotating motor (301) is fixedly connected to the wrist strength structure (3), the wrist strength structure (3) measures the wrist strength, an arm muscle strength structure (4) is arranged on one side of the wrist strength structure (3), the gear (401) in the arm muscle strength structure (4) is fixedly connected to the middle part of the output shaft of the rotating motor (301), and the arm muscle strength is measured through the arm muscle strength structure (4).

2. The sports physiology muscle strength measuring device according to claim 1, characterized in that: The leg muscle structure (2) comprises: a connecting arm (201), a dual-output shaft motor (205), and a leg support frame (213); one end of the connecting arm (201) is rotatably connected to the lower end of the frame (1); the other end of the connecting arm (201) is fixedly connected to the motor bin (202); both sides of the motor bin (202) are fixedly connected to the first rotating gear (203); both sides of the motor bin (202) are fixedly connected to the moving tube (204); the moving tube (204) and the first rotating gear (203) are connected in parallel. The motor (202) is fixedly connected to a dual-output shaft motor (205) in the motor compartment (202), and one end of a screw rod (206) is fixedly connected to the dual output shafts of the dual output shaft motor (205). The screw rod (206) has a threaded surface, and the other end of the screw rod (206) is fixedly connected to a first limit block (207). The surface of the screw rod (206) is threadedly connected to a screw rod nut (208), and the screw rod nut (208) is fixedly connected to the first connection block (207). One end of the rod (209), the other end of the first connecting rod (209) is fixedly connected to a movable rod (210), the movable rod (210) is located inside the movable tube (204), a notch is provided at the lower end of the movable tube (204), the movable rod (210) is fixedly connected to one end of the second connecting rod (211), the other end of the second connecting rod (211) extends out of the movable tube (204) and is fixedly connected to a movable sleeve (212), and the movable sleeve (212) is sleeved on the movable tube (204) The outer surface, one end of the movable sleeve (212) close to the motor bin (202) is fixedly connected to the second rotating tooth (2031), the second rotating tooth (2031) corresponds to the first rotating tooth (203) on the motor bin (202), the movable sleeve (212) is fixedly connected to one end of the third connecting rod (213), one side surface of the third connecting rod (213) is fixedly connected to one side surface of the leg support frame (214), and the inner surface of the leg support frame (214) is detachably connected to the leg pad (215).

3. The sports physiology muscle strength measuring device according to claim 1, characterized in that: The wrist force structure (3) comprises: a rotating motor (301), a wrist frame (303), and a first slide rail (305). The rotating motor (301) is fixedly mounted on the frame (1). One end of the output shaft of the rotating motor (301) is fixedly connected to a rotating wheel (302). The rotating wheel (302) is fixedly connected to the wrist frame (303). The wrist frame (303) is in an "L" shape. An elbow pad (309) is fixedly mounted on the horizontal surface of the wrist frame (303). The vertical surface of the wrist frame (303) is fixedly connected to one side of the first slide rail (304). The inner surface of the first slide rail (304) is fixedly connected to one end of a first hydraulic telescopic rod (307). The first hydraulic telescopic rod (307) The other end is fixedly connected to a slider (305), and the slider (305) is slidably installed in the first slide rail (304). A spring (308) is sleeved on the outer surface of the first hydraulic telescopic rod (307), and one end of the spring (308) is fixedly connected to the inner surface of the first slide rail (304), and the other end of the spring (308) is fixedly connected to the slider (305). One side of the slider (305) is fixedly connected to the handle (304), and one end of the limit frame (310) is fixedly connected to the frame (1), and the other end of the limit frame (310) is in contact with the wrist frame (303). The middle part of the output shaft of the rotating motor (301) is fixedly connected to the gear (401) in the arm muscle strength structure (4).

4. The sports physiology muscle strength measuring device according to claim 3, characterized in that: The arm muscle strength structure (4) comprises: a gear (401), a rack (402), and a tension rope frame (405); the gear (401) is fixedly mounted on the middle part of the output shaft of the rotating motor (301); the gear (401) is meshingly connected with the rack (402); the rack (402) is slidably mounted in a second slide rail (403); the second slide rail (403) is fixedly connected to the frame (1); one end of the rack (402) is fixedly connected to a tension rope rod (404); both ends of the tension rope rod (404) are fixedly connected to the tension rope frame (405); and the inner surface of the tension rope frame (405) is fixedly connected to the tension rope.

5. The sports physiology muscle strength measuring device according to claim 2, characterized in that: The lower surface of the motor compartment (202) is fixedly connected to one end of a limit rod (217), and the limit rod (217) limits the moving distance of the leg support frame (214). A counterweight frame (216) is fixedly installed on one side of the leg support frame (214), and a counterweight block can be detachably installed on the counterweight frame (216).

6. The sports physiology muscle strength measuring device according to claim 1, characterized in that: An armrest (601) is fixedly mounted on the seat (6), a movable rod end of an electric push rod (602) is fixedly connected to the bottom of the seat (6), the fixed rod end of the electric push rod (602) is fixedly connected to the ground, and the height of the seat (6) is adjusted by the electric push rod (602).

7. The sports physiology muscle strength measuring device according to claim 1, characterized in that: A strength measuring instrument (5) is fixedly mounted on the frame (1), and the strength measuring instrument (5) is connected to the leg muscle structure (2), the wrist strength structure (3) and the arm muscle strength structure (4).

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