Auxiliary device and method for testing muscle strength of lower limbs

Abstract

The invention discloses a lower limb muscle strength test auxiliary device, which belongs to the technical field of medical auxiliary equipment, can assist a doctor in comprehensively evaluating the state and progress of the lower limb muscle strength of a patient through four lower limb muscle strength test methods, and has the characteristics of convenience in use, accurate test result and high efficiency. Comprising a deck chair and a seat, the top of the deck chair is provided with an angle measuring structure used for measuring the foot lifting angle of a patient, the left side of the deck chair is provided with a protective frame, the protective frame is provided with a height measuring structure used for measuring the height, and a height adjusting structure used for adjusting the height of the seat is arranged between the seat and the legs of the seat. A length-adjustable supporting rod is arranged on the front side of the chair surface, and a holding measuring structure used for measuring the holding force of a patient is arranged at the outer end of the supporting rod. The invention further discloses a method for testing the muscle strength of the lower limbs by using the device.

Description

Technical Field

[0001] The present invention relates to the technical field of medical auxiliary equipment, and more specifically, to a lower limb muscle strength test auxiliary device. The present invention also relates to a lower limb muscle strength test method. Background Art

[0002] Lower limb strength test is a common method to evaluate leg muscle strength and function. Commonly used lower limb strength test methods include the following four: 1. Manual strength test, which generally requires measuring the force applied by the patient's limbs for graded assessment, generally from 0 to 5 (0 is no muscle strength, 5 is normal muscle strength). 2. Stand-up test, usually ask the patient to stand up from a chair and then sit down. The doctor records the number of times the patient stands up and sits down and the time required, and then evaluates his muscle strength and endurance, especially the comprehensive strength of the entire lower limb muscle group. 3. Straight leg raising test, ask the patient to lie flat and raise one leg and keep it straight. The doctor measures the angle of the patient's leg. 4. Squat test, ask the patient to squat from a standing position to the maximum limit, then return to standing, and the doctor records the depth of the patient's squat and the time used. After the above tests, the doctor comprehensively evaluates the status and progress of the patient's lower limb muscle strength based on the results obtained by each test method.

[0003] In the process of the above-mentioned test, such as test method 1, the existing measurement is usually performed by the doctor applying force to shake hands with the tester, the doctor applies force to the patient's palm, and the patient simultaneously applies force to reverse grip. The doctor evaluates the patient's manual muscle strength level based on the reverse grip force applied by the patient. Such evaluation results are highly subjective and the test results are not accurate enough. As in test method 2, since the heights of patients are different, the heights of the seats for patients who need to perform stand-up tests are different, which requires the seat surface to be adjustable in height. As in test method 3, when the patient raises one leg, the doctor does not have a suitable auxiliary tool to measure the angle of the leg raising, which affects the measurement efficiency and accuracy. As in test method 4, after the patient squats to the maximum limit, the doctor does not have a suitable auxiliary tool to measure the depth of his squat, and when the patient stands up in the squatting position, it is easy to stand unsteadily and fall. Therefore, it is urgent to design a device that can assist doctors in testing the muscle strength of patients' lower limbs to solve the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a lower limb muscle strength testing auxiliary device, which can assist doctors in comprehensively evaluating the status and progress of patients' lower limb muscle strength through four lower limb muscle strength testing methods. The device has the characteristics of easy use, accurate measurement results and high efficiency.

[0005] Another object of the present invention is to provide a method for assisting in testing lower limb muscle strength using the device.

[0006] The first technical solution adopted by the present invention is as follows:

[0007] A lower limb muscle strength test auxiliary device, which includes a recliner and a seat, wherein the top of the recliner is provided with an angle measuring structure for measuring the patient's foot lifting angle, the left side of the recliner is provided with a protective frame, the protective frame is provided with a height measuring structure for measuring the height, a height adjustment structure for adjusting the seat surface height is provided between the seat surface and the chair legs, the front side of the seat surface is provided with a support rod with an adjustable length, and the outer end of the support rod is provided with a grip measuring structure for measuring the patient's gripping force.

[0008] Furthermore, the angle measurement structure includes a placement slot arranged at the top of the front side of the recliner, the placement slot is arranged along the left and right direction, a rotating rod is rotatably provided in the placement slot, the right end of the rotating rod is rotatably connected to the front side of the recliner through a swivel seat, a protractor is provided at the connection between the swivel seat and the recliner, the protractor is fixedly connected to the recliner, the center point of the protractor is located on the center line of the rotating shaft of the swivel seat, and the 0 scale line of the protractor is parallel to the top surface of the recliner.

[0009] Furthermore, an observation hole is provided on the rotating rod.

[0010] Furthermore, a fixed pedal is provided on the left side of the recliner, and the right end of the fixed pedal is fixedly connected to the adjacent leg of the recliner. The protective frame includes multiple longitudinal tubes and a transverse tube, the upper ends of the multiple longitudinal tubes are fixedly connected to the transverse tube, and the lower ends of the multiple longitudinal tubes are fixedly connected to the fixed pedal.

[0011] Furthermore, the height measuring structure includes a guide groove arranged on one of the longitudinal tubes along its extension direction, a slider is slidably arranged in the guide groove, the inner end of the slider extends into the longitudinal tube, the outer end of the slider extends out of the longitudinal tube, a magnet block is provided at the inner end of the slider, and a scale is provided next to the guide groove.

[0012] Furthermore, the height adjustment structure includes four telescopic rods arranged at the bottom of the seat surface, the lower ends of the four telescopic rods are inserted into the four chair feet of the seat one by one, and the upper parts of the four chair feet of the seat are all threadedly connected with counter-top screws.

[0013] Furthermore, the gripping measurement structure includes a pair of symmetrically arranged gripping rods and torsion springs, the top ends of the pair of gripping rods are respectively fixedly connected to the two ends of the torsion springs, a positioning seat, a positioning rod and a fixing rod are provided between the pair of gripping rods, the left and right ends of the fixing rod are respectively fixedly connected to the positioning seat and one of the gripping rods, the positioning seat is provided with an arc-shaped through groove running through the left and right sides, the left end of the positioning rod is fixedly connected to the other gripping rod, the right end of the positioning rod passes through and extends out of the through groove, the positioning rod and the positioning seat are provided with a locking structure for locking the position of the positioning rod, and the bottom of one of the gripping rods is rotatably connected to the support rod.

[0014] Furthermore, the locking structure includes a plurality of slots arranged on the lower side of the positioning rod, a through slot is provided on the positioning seat, the upper end of the through slot is connected to the through slot, the lower end of the through slot is located at the bottom of the positioning seat, a limit block is slidably inserted in the through slot, a latch is provided at the upper end of the limit block, a pull rod is provided at the lower end of the limit block, a spring is provided on the pull rod between the limit block and the bottom of the through slot, the two ends of the spring are respectively fixedly connected to the limit block and the bottom of the through slot, the latch is an inclined surface toward the side of the positioning rod, and the latch is inserted into one of the slots.

[0015] Furthermore, a protective cover is provided on the outer sides of the pair of holding rods and the torsion spring.

[0016] Another technical solution adopted by the present invention is as follows:

[0017] A method for testing lower limb muscle strength, comprising the above-mentioned lower limb muscle strength testing auxiliary device, wherein the method allows a patient to perform a manual muscle strength test, a stand-up test, a straight leg raising test, and a squat test to obtain test data values ​​thereof, and the state and progress of the patient's lower limb muscle strength are evaluated according to the obtained test data values;

[0018] The manual muscle strength test specifically comprises the following steps:

[0019] S1. Loosen the anti-top screws on the four legs of the chair, adjust the seat surface height according to the height of the patient's lower limbs, and tighten the anti-top screws on the four legs of the chair;

[0020] S2. Let the patient sit on the chair, lengthen or shorten the support rod according to the length of the patient's arm, and move the grip measurement structure to the front of the patient;

[0021] S3, ask the patient to hold a pair of grip bars with one hand, exert maximum force on it at the same time, and ask the patient to release the hand holding the grip bar;

[0022] S4. The medical staff observes which slot on the positioning rod the pin on the positioning seat is plugged into, and determines and records the force level according to the slot into which the pin is plugged;

[0023] The stand-up test specifically comprises the following steps:

[0024] S1. Loosen the anti-top screws on the four legs of the chair, adjust the seat surface height according to the height of the patient's lower limbs, and tighten the anti-top screws on the four legs of the chair;

[0025] S2. Ask the patient to stand up from a chair and then sit down again 20 times. The doctor measures and records the total time the patient takes to complete the required movements.

[0026] The straight leg raising test specifically includes the following steps:

[0027] S1. Place the recliner and the seat side by side, and let the patient lie flat on the recliner and the seat with the patient's buttocks directly above the center point of the protractor;

[0028] S2. Ask the patient to raise one of his legs and keep it straight. The doctor rotates the rod to make it parallel to the patient's raised leg. Observe and record the angle the rod points to on the protractor at this time.

[0029] The squat test specifically comprises the following steps:

[0030] S1. Ask the patient to stand on a fixed pedal and squat from a standing position to the maximum limit. The doctor uses a stopwatch to measure and record the time it takes for the patient to squat from a standing position to the maximum limit.

[0031] S2. When the patient squats to the maximum, the doctor pushes the slider on the protective frame up and down so that it is located at the bottom of the patient's buttocks, and observes and records the height of the slider.

[0032] Compared with the prior art, the present invention has the following beneficial effects:

[0033] 1. A lower limb muscle strength test auxiliary device of the present invention is provided with a reclining chair and a seat. The top of the reclining chair is provided with an angle measuring structure for measuring the patient's foot lifting angle, so that the patient can perform a straight leg raising test conveniently; a protective frame is provided on the left side of the reclining chair, and a height measuring structure for measuring the height is provided on the protective frame, so that the patient can perform a squatting test conveniently next to the protective frame; a height adjustment structure for adjusting the height of the seat surface is provided between the seat surface and the chair legs, and the height of the seat surface can be adjusted according to the patient's height by means of the height adjustment structure, so that the patient can perform a stand-up test conveniently; a support rod with adjustable length is provided on the front side of the seat surface, and a grip measuring structure for measuring the patient's gripping force is provided on the outer end of the support rod, so that the patient can perform a manual muscle strength test conveniently while sitting on the seat. After the patient is assisted by the device in performing four lower limb muscle strength testing methods, the doctor can evaluate the state and progress of the patient's lower limb muscle strength according to the obtained test data values. The device is easy to use, and the measurement results are accurate and efficient.

[0034] 2. A method for testing lower limb muscle strength of the present invention helps patients complete four types of lower limb muscle strength tests by properly using the above-mentioned device, so as to provide doctors with more accurate test results and facilitate subsequent status evaluation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0036] Figure 1 It is a schematic diagram of the structure of the present invention;

[0037] Figure 2 It is a structural schematic diagram of the reclining chair of the present invention;

[0038] Figure 3 is a structural schematic diagram of a height measurement structure of the present invention;

[0039] Figure 4 It is a structural schematic diagram of a seat of the present invention;

[0040] Figure 5 Schematic diagram of the grip measurement structure of the present invention Figure 1 ;

[0041] Figure 6 yes Figure 5 A schematic diagram of the structure of the middle A part;

[0042] Figure 7 Schematic diagram of the grip measurement structure of the present invention Figure 2 .

[0043] Explanation of the accompanying drawings: 1. recliner; 2. seat; 201. seat surface; 202. telescopic rod; 3. protective frame; 301. longitudinal tube; 302. transverse tube; 4. support rod; 5. placement slot; 6. rotating rod; 7. rotating seat; 8. observation hole; 9. protractor; 10. fixed pedal; 11. guide slot; 12. slider; 13. magnet block; 14. scale; 15. counter-top screw; 16. holding rod; 17. torsion spring; 18. positioning seat; 19. positioning rod; 20. fixing rod; 21. through slot; 22. connecting rod; 23. slot; 24. through slot; 25. limit block; 26. latch; 27. pull rod; 28. spring; 29. ​​protective cover. DETAILED DESCRIPTION

[0044] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods, but does not constitute any limitation to the present invention.

[0045] Reference Figures 1 to 7As shown, a lower limb muscle strength test auxiliary device of the present invention includes a reclining chair 1 and a seat 2. The top of the reclining chair 1 is provided with an angle measuring structure for measuring the patient's foot lifting angle, so as to facilitate the patient to perform a straight leg raising test. A protective frame 3 is provided on the left side of the reclining chair 1, and a height measuring structure for measuring the height is provided on the protective frame 3, so as to facilitate the patient to perform a squat test next to the protective frame. A height adjustment structure for adjusting the height of the seat surface 201 is provided between the seat surface 201 and the chair foot of the seat 2. The height of the seat surface can be adjusted according to the height of the patient by using the height adjustment structure, so as to facilitate the patient to perform a stand-up test. A support rod 4 with adjustable length is provided on the front side of the seat surface 201, and a grip measurement structure for measuring the patient's grip force is provided at the outer end of the support rod 4, so as to facilitate the patient to sit on the seat and perform a manual muscle strength test. After using the device to assist the patient to perform four lower limb muscle strength test methods, the doctor evaluates the state and progress of the patient's lower limb muscle strength according to the obtained test data values. It is easy to use, and the measurement results are accurate and efficient.

[0046] Furthermore, the angle measurement structure includes a placement slot 5 provided at the top of the front side of the recliner 1, the placement slot 5 is arranged in the left-right direction, a rotating rod 6 is rotatably provided in the placement slot 5, the right end of the rotating rod 6 is rotatably connected to the front side of the recliner 1 through a rotating seat 7, a protractor 9 is provided at the connection between the rotating seat 7 and the recliner 1, the protractor 9 is fixedly connected to the recliner 1, the center point of the protractor 9 is located on the center line of the rotating shaft of the rotating seat 7 and the 0 scale line of the protractor 9 is parallel to the top surface of the recliner 1. When the straight leg raising test is not needed at ordinary times, the rotating rod 6 can be placed in the placement slot 5 for easy storage to prevent it from being hooked on clothes or other things. When the angle needs to be measured, the rotating rod 6 can be rotated upward to achieve angle measurement, which is convenient to use, and the rotating rod 6 with a certain length can better keep it parallel to the patient's raised legs to ensure the accuracy of the angle measurement.

[0047] Furthermore, the rotating rod 6 is provided with an observation hole 8 to facilitate observation of the angle value of the protractor 9 where the center line of the rotating rod 6 is located.

[0048] Furthermore, a fixed pedal 10 is provided on the left side of the recliner 1, and the right end of the fixed pedal 10 is fixedly connected to the adjacent leg of the recliner 1. The protective frame 3 includes multiple longitudinal tubes 301 and a transverse tube 302. The upper ends of the multiple longitudinal tubes 301 are fixedly connected to the transverse tube 302, and the lower ends of the multiple longitudinal tubes 301 are fixedly connected to the fixed pedal 10. When the patient is performing a squat test, the protective frame 3 can effectively protect him / her and prevent him / her from falling during the squatting process.

[0049] Furthermore, the height measuring structure includes a guide groove 11 arranged on one of the longitudinal tubes 301 along its extension direction, a slider 12 is slidably arranged in the guide groove 11, the inner end of the slider 12 extends into the longitudinal tube 301, and the outer end of the slider 12 extends out of the longitudinal tube 301, a magnet block 13 is provided at the inner end of the slider 12, and a scale 14 is provided next to the guide groove 11. When the height needs to be measured, the slider 12 sliding in the guide groove 11 can be moved to a certain position on the guide groove 11 by external force, and the slider 12 can be fixed in a specified position of the guide groove 11 by using the magnet block 13, and the height of the slider 12 can be determined by using the scale 14, which makes measurement more convenient.

[0050] Furthermore, the height adjustment structure includes four telescopic rods 202 arranged at the bottom of the seat surface 201 of the seat 2, and the lower ends of the four telescopic rods 202 are inserted into the four chair feet of the seat 2 one by one. The upper parts of the four chair feet of the seat 2 are all threadedly connected with anti-top screws 15. The synchronous control of the four telescopic rods 202 can realize the height adjustment of the seat surface 201. After adjusting the height of the seat surface, the telescopic rods 202 are locked and fixed in the chair feet of the seat 2 using the anti-top screws 15.

[0051] Furthermore, the gripping measurement structure includes a pair of symmetrically arranged gripping rods 16 and torsion springs 17, the top ends of the pair of gripping rods 16 are respectively fixedly connected to the two ends of the torsion springs 17, a positioning seat 18, a positioning rod 19 and a fixing rod 20 are provided between the pair of gripping rods 16, the left and right ends of the fixing rod 20 are respectively fixedly connected to the positioning seat 18 and one of the gripping rods 16, the positioning seat 18 is provided with an arc-shaped through groove 21 running through the left and right sides, the left end of the positioning rod 19 is fixedly connected to the other gripping rod 16, the right end of the positioning rod 19 passes through and extends out of the through groove 21, the positioning rod 19 and the positioning seat 18 are provided with a locking structure for locking the position of the positioning rod 19, and the bottom of one of the gripping rods 16 is rotatably connected to the support rod 4. During use, when the patient applies force to hold the pair of holding rods 16 tightly, the pair of holding rods 16 move toward each other, and the positioning rod 19 and the fixing rod 20 connected on their opposite surfaces move toward each other synchronously, so that the positioning rod 19 moves to the right side of the positioning seat 18, and the locking structure on the positioning seat 18 locks the positioning rod 19 in the final position of the movement process. According to the relative position of the locked positioning rod 19 and the positioning seat 18, the strength of the force applied by the patient to the holding measurement structure can be determined, thereby eliminating the subjectivity of manual measurement and making the measurement data more accurate.

[0052] Furthermore, the locking structure includes a plurality of slots 23 arranged on the lower side of the positioning rod 19, a through slot 24 is provided on the positioning seat 18, the upper end of the through slot 24 is connected to the through slot 21, and the lower end of the through slot 24 is located at the bottom of the positioning seat 18, a limit block 25 is slidably inserted in the through slot 24, a latch 26 is provided at the upper end of the limit block 25, a pull rod 27 is provided at the lower end of the limit block 25, a spring 28 is provided on the pull rod 27 between the limit block 25 and the bottom of the through slot 24, and the two ends of the spring 28 are respectively fixedly connected to the limit block 25 and the bottom of the through slot 24, the latch 26 is an inclined surface toward the side of the positioning rod 19, and the latch 26 is inserted into one of the slots 23. Since the limit block 25 is acted upon by the elastic force of the spring 28, it will be pushed toward the upper end of the through slot 24, and the latch 26 at the upper end of the limit block 25 will move upward synchronously with it. When the patient applies force to hold the pair of gripping rods 16 tightly, the positioning rod 19 moves to the right side of the positioning seat 18. When a certain slot 23 is aligned with the through slot 24 during the movement of the positioning rod 19, the latch 26 extends out of the through slot 24 and is inserted into the slot 23 to lock the position of the positioning rod 19. If the patient stops applying force at this time, the pair of gripping rods 16 will generate pulling forces in opposite directions due to the elastic force of the torsion spring 17, but since the latch 26 is inserted into the slot 23, the position of the positioning rod 19 is locked to prevent it from resetting, so that the result of the force test is retained, which is convenient for the doctor to check. If the patient continues to increase the force at this time, the pair of gripping rods 16 will continue to generate the same pulling forces. The positioning rod 19 indirectly receives the force and generates a rightward thrust on the latch 26, while the inclined surface structure of the latch 26 on one side of the positioning rod 19 generates a thrust on the latch 26 toward the lower end of the through slot 24. This thrust counteracts the elastic force of the spring 28, so that the latch 26 drives the limit block 25 and the pull rod 27 to move toward the lower end of the through slot 24 until the latch 26 completely exits the slot 23, and the positioning rod 19 continues to move toward the right side of the positioning seat 18 until the positioning rod 19 is locked in the final position of the rightward movement process after the patient exerts all his strength. After the doctor checks the locking result of the grip measurement structure, he pulls the pull rod 27 outward to release the locking of the positioning rod 19 and reset it, which is convenient to use.

[0053] Furthermore, a protective cover 29 is provided on the outer side of a pair of the holding rods 16 and the torsion spring 17. The protective cover 29 can effectively protect the holding and measuring structure. When different patients use the holding and measuring structure, the doctor can directly disinfect the protective cover 29 to meet the hygiene requirements and avoid corrosion of the holding and measuring structure by the disinfectant.

[0054] A method for testing lower limb muscle strength includes the above-mentioned lower limb muscle strength testing auxiliary device. The method allows patients to perform manual muscle strength tests, sit-up tests, straight leg raising tests and squat tests to obtain their test data values, and evaluates the status and progress of the patient's lower limb muscle strength based on the obtained test data values.

[0055] The manual muscle strength test specifically comprises the following steps:

[0056] S1. Loosen the anti-top screws 15 on the four chair legs of the seat 2, adjust the height of the seat surface 201 of the seat 2 according to the height of the patient's lower limbs, and tighten the anti-top screws 15 on the four chair legs of the seat 2.

[0057] S2. Let the patient sit on the chair 2, lengthen or shorten the support rod 4 according to the length of the patient's arm, and move the grip measurement structure to the front of the patient.

[0058] S3, let the patient hold the pair of gripping rods 16 with one of his hands, exert maximum force on it, and let the patient release the hand holding the gripping rod 16.

[0059] S4. The medical staff observes which slot 23 on the positioning rod 19 the latch 26 on the positioning seat 18 is plugged into, and determines and records the force level according to the slot 23 into which the latch 26 is plugged.

[0060] The stand-up test specifically comprises the following steps:

[0061] S1. Loosen the anti-top screws 15 on the four chair legs of the seat 2, adjust the height of the seat surface 201 of the seat 2 according to the height of the patient's lower limbs, and tighten the anti-top screws 15 on the four chair legs of the seat 2.

[0062] S2. Ask the patient to stand up from Chair 2 and then sit back down 20 times. The doctor measures and records the total time the patient takes to complete the required movements.

[0063] The straight leg raising test specifically includes the following steps:

[0064] S1. Place the recliner 1 and the seat 2 side by side in sequence, let the patient lie flat on the recliner 1 and the seat 2 with the patient's buttocks located directly above the center point of the protractor 9. By placing the recliner 1 and the seat 2 side by side in sequence, the length of the recliner 1 can be increased, making it convenient for the patient to lie down.

[0065] S2. Let the patient raise one of his legs and keep it straight. The doctor rotates the rotating rod 6 to make it parallel to the patient's raised leg, and observes and records the angle value pointed by the rotating rod 6 on the protractor 9 at this time.

[0066] The squat test specifically comprises the following steps:

[0067] S1. Let the patient stand on the fixed pedal 10 and let the patient squat from the standing position to the maximum limit. The doctor uses a stopwatch to measure and record the time taken by the patient to squat from the standing position to the maximum limit.

[0068] S2. When the patient squats to the maximum, the doctor pushes the slider 12 on the protective frame 3 up and down to make it located at the bottom of the patient's buttocks, and observes and records the height value of the slider 12.

[0069] The method of lower limb muscle strength testing of the present invention helps patients complete four lower limb muscle strength tests by properly using the above-mentioned device, so as to provide doctors with more accurate test results and facilitate subsequent status evaluation.

[0070] The above description is only a preferred embodiment of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lower limb muscle strength test auxiliary device, characterized in that: The invention comprises a reclining chair (1) and a seat (2), wherein the top of the reclining chair (1) is provided with an angle measuring structure for measuring the elevation angle of a patient's feet, a protective frame (3) is provided on the left side of the reclining chair (1), and a height measuring structure for measuring the height is provided on the protective frame (3), a height adjustment structure for adjusting the height of the seat surface (201) is provided between the seat surface (201) and the chair legs of the seat (2), a support rod (4) with an adjustable length is provided on the front side of the seat surface (201), and a grip measurement structure for measuring the gripping force of the patient is provided at the outer end of the support rod (4).

2. A lower limb muscle strength testing auxiliary device according to claim 1, characterized in that: The angle measurement structure comprises a placement groove (5) arranged at the top of the front side of the reclining chair (1), the placement groove (5) being arranged in the left-right direction, a rotating rod (6) being rotatably arranged in the placement groove (5), the right end of the rotating rod (6) being rotatably connected to the front side of the reclining chair (1) via a rotating seat (7), a protractor (9) being arranged at the connection between the rotating seat (7) and the reclining chair (1), the protractor (9) being fixedly connected to the reclining chair (1), the center point of the protractor (9) being located on the center line of the rotating shaft of the rotating seat (7), and the 0 scale line of the protractor (9) being parallel to the top surface of the reclining chair (1).

3. A lower limb muscle strength testing auxiliary device according to claim 2, characterized in that: The rotating rod (6) is provided with an observation hole (8).

4. A lower limb muscle strength testing auxiliary device according to claim 1, characterized in that: A fixed pedal (10) is provided on the left side of the reclining chair (1), the right end of the fixed pedal (10) is fixedly connected to the adjacent leg of the reclining chair (1), the protective frame (3) comprises a plurality of longitudinal tubes (301) and a transverse tube (302), the upper ends of the plurality of longitudinal tubes (301) are fixedly connected to the transverse tube (302), and the lower ends of the plurality of longitudinal tubes (301) are fixedly connected to the fixed pedal (10).

5. A lower limb muscle strength testing auxiliary device according to claim 4, characterized in that: The height measuring structure comprises a guide groove (11) arranged on one of the longitudinal tubes (301) along its extension direction, a slider (12) being slidably arranged in the guide groove (11), the inner end of the slider (12) extending into the longitudinal tube (301), the outer end of the slider (12) extending out of the longitudinal tube (301), a magnet block (13) being arranged at the inner end of the slider (12), and a scale (14) being arranged beside the guide groove (11).

6. A lower limb muscle strength testing auxiliary device according to claim 1, characterized in that: The height adjustment structure comprises four telescopic rods (202) arranged at the bottom of the seat surface (201) of the seat (2), the lower ends of the four telescopic rods (202) being inserted into the four chair feet of the seat (2) one by one, and the upper parts of the four chair feet of the seat (2) are all threadedly connected with anti-top screws (15).

7. A lower limb muscle strength testing auxiliary device according to claim 1, characterized in that: The gripping measurement structure comprises a pair of symmetrically arranged gripping rods (16) and a torsion spring (17), the top ends of the pair of gripping rods (16) are respectively fixedly connected to the two ends of the torsion spring (17), a positioning seat (18), a positioning rod (19) and a fixing rod (20) are provided between the pair of gripping rods (16), the left and right ends of the fixing rod (20) are respectively fixedly connected to the positioning seat (18) and one of the gripping rods (16), the positioning seat (18) is provided with an arc-shaped through groove (21) running through the left and right sides, the left end of the positioning rod (19) is fixedly connected to the other gripping rod (16), the right end of the positioning rod (19) passes through and extends out of the through groove (21), the positioning rod (19) and the positioning seat (18) are provided with a locking structure for locking the position of the positioning rod (19), and the bottom of one of the gripping rods (16) is rotatably connected to the support rod (4).

8. A lower limb muscle strength testing auxiliary device according to claim 7, characterized in that: The locking structure comprises a plurality of slots (23) arranged on the lower side of the positioning rod (19); a through slot (24) is provided on the positioning seat (18); the upper end of the through slot (24) is communicated with the through slot (21); the lower end of the through slot (24) is located at the bottom of the positioning seat (18); a limit block (25) is slidably inserted in the through slot (24); a latch (26) is provided at the upper end of the limit block (25); a pull rod (27) is provided at the lower end of the limit block (25); a spring (28) is provided on the pull rod (27) between the limit block (25) and the bottom of the through slot (24); the two ends of the spring (28) are respectively fixedly connected to the limit block (25) and the bottom of the through slot (24); the latch (26) is inclined on the side facing the positioning rod (19); and the latch (26) is inserted into one of the slots (23).

9. A lower limb muscle strength testing auxiliary device according to claim 7, characterized in that: A protective sleeve (29) is provided on the outer sides of the pair of holding rods (16) and the torsion spring (17).

10. A method for testing lower limb muscle strength, characterized in that: The method comprises the lower limb muscle strength test auxiliary device as described in any one of claims 1 to 9, wherein the method allows the patient to perform a manual muscle strength test, a stand-up test, a straight leg raising test, and a squat test respectively to obtain test data values ​​thereof, and the state and progress of the patient's lower limb muscle strength are evaluated according to the obtained test data values; The manual muscle strength test specifically comprises the following steps: S1. Loosen the anti-top screws (15) on the four chair legs of the chair (2), adjust the height of the seat surface (201) of the chair (2) according to the height of the patient's lower limbs, and tighten the anti-top screws (15) on the four chair legs of the chair (2); S2. Let the patient sit on the chair (2), lengthen or shorten the support rod (4) according to the length of the patient's arm, and move the grip measurement structure to the front of the patient; S3, having the patient hold a pair of gripping rods (16) with one of their hands, exerting maximum force on the gripping rods, and having the patient release the hand holding the gripping rods (16); S4, the medical staff observes which slot (23) on the positioning rod (19) the latch (26) on the positioning seat (18) is plugged into, and determines and records the force level according to the slot (23) into which the latch (26) is plugged; The stand-up test specifically comprises the following steps: S1. Loosen the anti-top screws (15) on the four chair legs of the chair (2), adjust the height of the seat surface (201) of the chair (2) according to the height of the patient's lower limbs, and tighten the anti-top screws (15) on the four chair legs of the chair (2); S2, ask the patient to stand up from the chair (2) and then sit down again 20 times. The doctor measures and records the total time the patient takes to complete the required movements; The straight leg raising test specifically includes the following steps: S1. Place the recliner (1) and the seat (2) side by side in sequence, and let the patient lie flat on the recliner (1) and the seat (2) with the patient's buttocks located directly above the center point of the protractor (9); S2. Let the patient raise one of his legs and keep it straight. The doctor rotates the rotating rod (6) to make it parallel to the patient's raised leg, and observes and records the angle value pointed by the rotating rod (6) on the protractor (9) at this time; The squat test specifically comprises the following steps: S1. Let the patient stand on the fixed pedal (10), let the patient squat from the standing position to the maximum limit, and the doctor uses a stopwatch to measure and record the time taken by the patient to squat from the standing position to the maximum limit; S2. When the patient squats to the maximum, the doctor pushes the slider (12) on the protective frame (3) up and down to make it located at the bottom of the patient's buttocks, and observes and records the height value of the slider (12).

Images