CN107320107A - A kind of healthy sign detection device based on seat trunk bending forwards - Google Patents

A kind of healthy sign detection device based on seat trunk bending forwards Download PDF

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Publication number
CN107320107A
CN107320107A CN201710670823.9A CN201710670823A CN107320107A CN 107320107 A CN107320107 A CN 107320107A CN 201710670823 A CN201710670823 A CN 201710670823A CN 107320107 A CN107320107 A CN 107320107A
Authority
CN
China
Prior art keywords
detection device
sign detection
device based
trunk bending
bending forwards
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710670823.9A
Other languages
Chinese (zh)
Inventor
蒋智谋
蒋中文
李敬龙
胡加锋
谢水兵
董子侠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Zhuangyuanlang Electronic Technology Co Ltd
Original Assignee
Anhui Zhuangyuanlang Electronic Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Zhuangyuanlang Electronic Technology Co Ltd filed Critical Anhui Zhuangyuanlang Electronic Technology Co Ltd
Priority to CN201710670823.9A priority Critical patent/CN107320107A/en
Publication of CN107320107A publication Critical patent/CN107320107A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/103Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A61B5/1118Determining activity level
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/45For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4523Tendons
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/45For evaluating or diagnosing the musculoskeletal system or teeth
    • A61B5/4533Ligaments
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/06Indicating or scoring devices for games or players, or for other sports activities
    • A63B71/0619Displays, user interfaces and indicating devices, specially adapted for sport equipment, e.g. display mounted on treadmills
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63BAPPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2220/00Measuring of physical parameters relating to sporting activity
    • A63B2220/17Counting, e.g. counting periodical movements, revolutions or cycles, or including further data processing to determine distances or speed

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Rheumatology (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Rehabilitation Therapy (AREA)
  • Human Computer Interaction (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Physiology (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

The invention discloses a kind of healthy sign detection device based on seat trunk bending forwards, including device body, the surface of device body is provided with monitor station, the surface of monitor station is respectively arranged with service creeper, pin supporting plate and support column, measurement bar is internally provided with regulation chute, measurement bar opposite side is provided with monitoring counting device, measurement bar surface is provided with pushing board, monitoring counting device includes air bag and counting device, counting device is internally provided with fan blade, the side of fan blade is provided with drive, the surface of drive is provided with connecting rod, connecting rod side is provided with counter, connected between drive and counter by signal wire.Which solves the seat trunk bending forwards device that existing healthy sign detection device is directed to ligament Fitness Testing, push rod can not be reclaimed automatically when in use, need manually to push back push pedal after each motion, it is simultaneously often whether up to standard using motion is visually observed in motion, cause count it is inaccurate, using trouble the problem of.

Description

A kind of healthy sign detection device based on seat trunk bending forwards
Technical field
The present invention relates to a kind of healthy sign detection device, and in particular to a kind of healthy sign inspection based on seat trunk bending forwards Measurement equipment, belongs to healthy sign testing equipment field.
Background technology
Position trunk bending forwards is universities, middle and primary schools' physical health test event, and its test purpose is to measure body under static state The movable amplitude that the joints such as dry, waist, hip are likely to be breached, mainly reflect joint, ligament and the muscle at these positions extensibility and The development level of elasticity and body flexibility quality.Existing sitting body anteflexion be pass the examination in China Sports must examine one of project.Seat Trunk bending forwards is to be used to reflect the flexible test event of human body.When pliability refers to human body execution, joint, muscle, tendon With the expansion service of ligament.The quality of flexibility quality is big depending on the anatomical structure in joint and the volume of periarticular soft tissues Small and ligament, tendon, the extensibility of muscle and skin.The flexibility in joint can be improved by physical training, improves periarticular Function and muscle, ligament, the extensibility of tendon of soft tissue, and when people lack physical training, and constitution declines, Hen Duodou It is since the decline of flexibility quality.The degree of flexibility of one people is better, represents that the movable amplitude in its joint is bigger, joint Flexibility is stronger.Flexibility quality and the relation of health are extremely close, flexible to improve, the coordination ability to strengthening body, more The quality such as strength, speed are played well, are sharpened one's skills and technology, prevent athletic injury etc. from playing the role of positive.But it is existing Healthy sign detection device is directed to the seat trunk bending forwards device of ligament Fitness Testing, and push rod can not be reclaimed automatically when in use, Need manually to push back push pedal after each motion, at the same it is often whether up to standard using motion is visually observed in motion, cause Count it is inaccurate, using trouble the problem of.
The content of the invention
The technical problem to be solved in the present invention is that the existing healthy sign detection device overcome is directed to ligament health survey The seat trunk bending forwards device of examination, when in use push rod can not reclaim automatically, need manually to push back push pedal after each motion, together When motion when often using visually observe motion it is whether up to standard, cause count it is inaccurate, using trouble the problem of there is provided one kind Healthy sign detection device based on seat trunk bending forwards.
In order to solve the above-mentioned technical problem, the invention provides following technical scheme:
The invention provides a kind of healthy sign detection device based on seat trunk bending forwards, including device body, the dress The surface for putting body is provided with monitor station, and the surface of the monitor station is respectively arranged with service creeper, pin supporting plate and support column, described The surface of pin supporting plate is provided with the top of foot-operated groove, the pin supporting plate and is provided with regulating block and fixed block, the regulating block It is provided with measurement bar between the fixed block, the measurement bar is internally provided with regulation chute, the side of the measurement bar Graduated scale is provided with, the opposite side of the measurement bar is provided with monitoring counting device, and the surface of the measurement bar is provided with hand push Plate, the monitoring counting device includes air bag and counting device, is connected between the air bag and the counting device by tracheae, The counting device is internally provided with fan blade, and the side of the fan blade is provided with drive, the surface of the drive Connecting rod is provided with, the side of the connecting rod is provided with counter, signal is passed through between the drive and the counter Line is connected.
As a preferred technical solution of the present invention, the top of the support column sets fluted, the pushing board Bottom is provided with neck, and the surface of the neck is provided with slide bar.
As a preferred technical solution of the present invention, the regulation chute is internally provided with backing plate, the backing plate One end is provided with spring.
As a preferred technical solution of the present invention, the groove and the neck match with the measurement bar, and The groove and the neck are located on same level straight line with the measurement bar.
As a preferred technical solution of the present invention, the side of the regulating block is provided with regulating bolt, the regulation Bolt and regulating block threaded connection.
As a preferred technical solution of the present invention, the pushing board passes through the slide bar and the regulation slide Connection, the measurement bar and the groove are slidably connected.
As a preferred technical solution of the present invention, the spring one end is fixedly connected with the backing plate, its other end It is fixedly connected with the slide bar, the fixed block is fixedly connected with the pin supporting plate.
As a preferred technical solution of the present invention, the fan blade and drive engagement.
As a preferred technical solution of the present invention, the drive passes through the signal wire and the counter signals Connection.
As a preferred technical solution of the present invention, the side of described device body is provided with external power supply and operation control surface Plate, the external power supply and the control panel are electrically connected with, and the control panel and the counter are electrically connected with.
The beneficial effect that is reached of the present invention is:The device is that a kind of healthy sign detection based on seat trunk bending forwards is set It is standby, spring is internally provided with handing-over chute, and spring one end and backing plate are fixed, and its other end and slide bar are fixed, and are conducive to Using the elastic force of spring itself in motion, water push pedal is pushed back, the step of when reducing motion so that using more facilitating; Monitoring counting device is set, passes through pushing board extruding gasbag so that air bag is blown to counting device inside, can drive fan blade With drive work, counted that there is provided a kind of healthy sign detection device based on seat trunk bending forwards.Present invention design is closed Reason, it is simple in construction, safe and reliable, easy to use, easy to maintain, have good value for applications.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, the reality with the present invention Applying example is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the monitoring counting device structural representation of the present invention;
Fig. 3 is the support column arrangement schematic diagram of the present invention;
Fig. 4 is the hand push plate structure schematic diagram of the present invention;
Fig. 5 is the measurement bar structural representation of the present invention;
In figure:1st, device body;2nd, monitor station;3rd, service creeper;4th, pin supporting plate;5th, support column;6th, groove is ridden;7th, adjust Block;8th, fixed block;9th, measurement bar;10th, chute is adjusted;11st, graduated scale;12nd, counting device is monitored;13rd, pushing board;14th, air bag; 15th, counting device;16th, tracheae;17th, fan blade;18th, drive;19th, connecting rod;20th, counter;21st, signal wire;22nd, it is recessed Groove;23rd, neck;24th, slide bar;25th, backing plate;26th, spring.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment 1
As Figure 1-5, the present invention provides a kind of healthy sign detection device based on seat trunk bending forwards, including device sheet Body 1, the surface of device body 1 is provided with monitor station 2, and the surface of monitor station 2 is respectively arranged with service creeper 3, pin supporting plate 4 and support Post 5, the surface of pin supporting plate 4 is provided with foot-operated groove 6, and the top of pin supporting plate 4 is provided with regulating block 7 and fixed block 8, regulating block Measurement bar 9 is provided between 7 and fixed block 8, being internally provided with for measurement bar 9 adjusts chute 10, and the side of measurement bar 9 is provided with Graduated scale 11, the opposite side of measurement bar 9 is provided with monitoring counting device 12, and the surface of measurement bar 9 is provided with pushing board 13, monitors Counting device 12 includes air bag 14 and counting device 15, is connected between air bag 14 and counting device 15 by tracheae 16, counts dress Put 15 and be internally provided with fan blade 17, the side of fan blade 17 is provided with drive 18, the surface of drive 18 is provided with company Extension bar 19, the side of connecting rod 19 is provided with counter 20, is connected between drive 18 and counter 20 by signal wire 21.
The top of support column 5 sets fluted 22, and the bottom of pushing board 13 is provided with neck 23, and the surface of neck 23 is set There is slide bar 24.Pushing board 13 is conducive to be moved by slide bar 24 on regulation chute 10.
Adjust chute 10 is internally provided with backing plate 25, and one end of backing plate 25 is provided with spring 26.Be conducive to utilizing spring 26 elastic force of itself carry out resilience to pushing board 13.
Groove 22 and neck 23 match with measurement bar 9, and groove 22 and neck 23 and measurement bar 9 are straight positioned at same level On line.Groove 22 and neck 23 is conducive to be completely embedded with measurement bar 9.
The side of regulating block 7 is provided with regulating bolt, and regulating bolt and regulating block 7 are threadedly coupled.Be conducive to regulating bolt It is completely embedded with regulating block 7.
Pushing board 13 is slidably connected by slide bar 24 with regulation chute 10, and measurement bar 9 and groove 22 are slidably connected.Be conducive to Pushing board 13 is by slide bar 24 in the regulation internal slide of chute 10, and measurement bar 9 is slided on groove 22.
The one end of spring 26 is fixedly connected with backing plate 25, and its other end is fixedly connected with slide bar 24, fixed block 8 and pin supporting plate 4 are fixedly connected.Be conducive to the one end of spring 26 and the fixing-stable of backing plate 25, its other end and the fixing-stable of slide bar 24, the He of fixed block 8 The fixing-stable of pin supporting plate 4.
Fan blade 17 and drive 18 are engaged.Fan blade 17 and drive 18 is conducive to be completely embedded.
Drive 18 is connected by signal wire 21 and the signal of counter 20.Drive 18 is conducive to pass through signal wire 21 and meter Number device 20 realizes that signal is transmitted.
The side of device body 1 is provided with external power supply and control panel, and external power supply and control panel are electrically connected with, behaviour Control panel and counter 20 are electrically connected with.Be conducive to providing the electric energy of abundance for device body 1, it is ensured that control panel and counter 20 working stabilities.
The device is a kind of healthy sign detection device based on seat trunk bending forwards, groove 22 and neck 23 and measurement bar 9 Match, and groove 22 and neck 23 are located on same level straight line with measurement bar 9;The side of regulating block 7 is provided with regulation spiral shell Bolt, regulating bolt and regulating block 7 are threadedly coupled;Pushing board 13 is slidably connected by slide bar 24 with regulation chute 10, the He of measurement bar 9 Groove 22 is slidably connected;The one end of spring 26 is fixedly connected with backing plate 25, and its other end is fixedly connected with slide bar 24, the He of fixed block 8 Pin supporting plate 4 is fixedly connected;Fan blade 17 and drive 18 are engaged;Drive 18 is connected by signal wire 21 and the signal of counter 20 Connect;The side of device body 1 is provided with external power supply and control panel, and external power supply and control panel are electrically connected with, operation control surface Plate and counter 20 are electrically connected with;When needing with the device, first measurement bar 9 is placed in the groove 22 at the top of support column 5, Measurement bar 9 is adjacent to the side of fixed block 8, now measurement bar 9 can be movable, pushing board 13 is adjusted in regulation according to graduated scale 11 Maximum actuating length inside chute 10, this distance is test passes distance, after regulation is finished, passes through regulating bolt secured adjusted Block 7, now measurement bar 9 is stationary state, and people back is lain on service creeper 3, and pin is placed in foot-operated groove 6, and leg is stretched completely, hand steered On pushing board 13, and arm is stretched, and during motion, leg is exerted oneself so that waist is bent, and hand does the best pushing board 13 forward Push away, under qualified test, the meeting extruding gasbag 14 of pushing board 13 so that air bag 14 is blown to fan blade 17, drives the work of drive 18 Make, be transferred on counter 20 and recorded by signal wire 21, and the display data on control panel, after once moving, hand Pushing board 13 can be put down, the resilience of pushing board 13 can be facilitated the motion of next round to use by the elastic force of itself using spring 26.
The beneficial effect that is reached of the present invention is:The device is that a kind of healthy sign detection based on seat trunk bending forwards is set It is standby, spring is internally provided with handing-over chute, and spring one end and backing plate are fixed, and its other end and slide bar are fixed, and are conducive to Using the elastic force of spring itself in motion, water push pedal is pushed back, the step of when reducing motion so that using more facilitating; Monitoring counting device is set, passes through pushing board extruding gasbag so that air bag is blown to counting device inside, can drive fan blade With drive work, counted that there is provided a kind of healthy sign detection device based on seat trunk bending forwards.Present invention design is closed Reason, it is simple in construction, safe and reliable, easy to use, easy to maintain, have good value for applications.
Finally it should be noted that:The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic. Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's Within protection domain.

Claims (10)

1. a kind of healthy sign detection device based on seat trunk bending forwards, including device body (1), it is characterised in that the dress The surface for putting body (1) is provided with monitor station (2), and the surface of the monitor station (2) is respectively arranged with service creeper (3), pin supporting plate (4) and support column (5), the surface of the pin supporting plate (4) is provided with foot-operated groove (6), and the top of the pin supporting plate (4) is set There are regulating block (7) and fixed block (8), measurement bar (9) is provided between the regulating block (7) and the fixed block (8), it is described to survey Being internally provided with for gauge rod (9) adjusts chute (10), and the side of the measurement bar (9) is provided with graduated scale (11), the measurement The opposite side of bar (9) is provided with monitoring counting device (12), and the surface of the measurement bar (9) is provided with pushing board (13), described Monitoring counting device (12) includes air bag (14) and counting device (15), between the air bag (14) and the counting device (15) Connected by tracheae (16), the counting device (15) is internally provided with fan blade (17), the side of the fan blade (17) Drive (18) is provided with, the surface of the drive (18) is provided with connecting rod (19), and the side of the connecting rod (19) is set Counter (20) is equipped with, is connected between the drive (18) and the counter (20) by signal wire (21).
2. a kind of healthy sign detection device based on seat trunk bending forwards according to claim 1, it is characterised in that described The top of support column (5) sets fluted (22), and the bottom of the pushing board (13) is provided with neck (23), the neck (23) Surface be provided with slide bar (24).
3. a kind of healthy sign detection device based on seat trunk bending forwards according to claim 2, it is characterised in that described Adjust chute (10) is internally provided with backing plate (25), and one end of the backing plate (25) is provided with spring (26).
4. a kind of healthy sign detection device based on seat trunk bending forwards according to claim 2, it is characterised in that described Groove (22) and the neck (23) match with the measurement bar (9), and the groove (22) and the neck (23) and institute Measurement bar (9) is stated on same level straight line.
5. a kind of healthy sign detection device based on seat trunk bending forwards according to claim 1, it is characterised in that described The side of regulating block (7) is provided with regulating bolt, the regulating bolt and the regulating block (7) threaded connection.
6. a kind of healthy sign detection device based on seat trunk bending forwards according to claim 2, it is characterised in that described Pushing board (13) is slidably connected by the slide bar (24) with the regulation chute (10), the measurement bar (9) and the groove (22) it is slidably connected.
7. a kind of healthy sign detection device based on seat trunk bending forwards according to claim 3, it is characterised in that described Spring (26) one end is fixedly connected with the backing plate (25), and its other end is fixedly connected with the slide bar (24), the fixed block (8) it is fixedly connected with the pin supporting plate (4).
8. a kind of healthy sign detection device based on seat trunk bending forwards according to claim 1, it is characterised in that described Fan blade (17) and the drive (18) engagement.
9. a kind of healthy sign detection device based on seat trunk bending forwards according to claim 1, it is characterised in that described Drive (18) is connected by the signal wire (21) and the counter (20) signal.
10. a kind of healthy sign detection device based on seat trunk bending forwards according to claim 1, it is characterised in that institute The side for stating device body (1) is provided with external power supply and control panel, and the external power supply and the control panel electrically connect Connect, the control panel and the counter (20) are electrically connected with.
CN201710670823.9A 2017-08-08 2017-08-08 A kind of healthy sign detection device based on seat trunk bending forwards Pending CN107320107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710670823.9A CN107320107A (en) 2017-08-08 2017-08-08 A kind of healthy sign detection device based on seat trunk bending forwards

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Application Number Priority Date Filing Date Title
CN201710670823.9A CN107320107A (en) 2017-08-08 2017-08-08 A kind of healthy sign detection device based on seat trunk bending forwards

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110801617A (en) * 2019-12-02 2020-02-18 湖南第一师范学院 Seat body anteflexion telecontrol equipment convenient to physical stamina test is used
CN111589055A (en) * 2020-06-03 2020-08-28 邯郸学院 Aerobics flexibility and balance training auxiliary device and aerobics flexibility and balance training auxiliary method
CN112774122A (en) * 2021-01-20 2021-05-11 云南工商学院 Ligament trainer for sports education

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204181619U (en) * 2014-10-08 2015-03-04 杭州瑞嘉体育健身器材有限公司 Intelligent-induction formula sitting body anteflexion tester
CN205163075U (en) * 2015-11-16 2016-04-20 常州市第一人民医院 Vital capacity tester
CN105877761A (en) * 2016-04-19 2016-08-24 浙江德清五洲运动器材有限公司 Sit-and-reach tester
CN105935488A (en) * 2016-06-22 2016-09-14 安庆海纳信息技术有限公司 Sit-and-reach and sit-up tester for physical education and use method
CN205699149U (en) * 2016-04-08 2016-11-23 南昌师范学院 Sitting body anteflexion training aids

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204181619U (en) * 2014-10-08 2015-03-04 杭州瑞嘉体育健身器材有限公司 Intelligent-induction formula sitting body anteflexion tester
CN205163075U (en) * 2015-11-16 2016-04-20 常州市第一人民医院 Vital capacity tester
CN205699149U (en) * 2016-04-08 2016-11-23 南昌师范学院 Sitting body anteflexion training aids
CN105877761A (en) * 2016-04-19 2016-08-24 浙江德清五洲运动器材有限公司 Sit-and-reach tester
CN105935488A (en) * 2016-06-22 2016-09-14 安庆海纳信息技术有限公司 Sit-and-reach and sit-up tester for physical education and use method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110801617A (en) * 2019-12-02 2020-02-18 湖南第一师范学院 Seat body anteflexion telecontrol equipment convenient to physical stamina test is used
CN110801617B (en) * 2019-12-02 2021-03-19 湖南第一师范学院 Seat body anteflexion telecontrol equipment convenient to physical stamina test is used
CN111589055A (en) * 2020-06-03 2020-08-28 邯郸学院 Aerobics flexibility and balance training auxiliary device and aerobics flexibility and balance training auxiliary method
CN111589055B (en) * 2020-06-03 2021-11-23 邯郸学院 Aerobics flexibility and balance training auxiliary device and aerobics flexibility and balance training auxiliary method
CN112774122A (en) * 2021-01-20 2021-05-11 云南工商学院 Ligament trainer for sports education

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Application publication date: 20171107

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