CN103278278B - Strength tester for foot metatarsophalangeal joints - Google Patents
Strength tester for foot metatarsophalangeal joints Download PDFInfo
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- CN103278278B CN103278278B CN201310239441.2A CN201310239441A CN103278278B CN 103278278 B CN103278278 B CN 103278278B CN 201310239441 A CN201310239441 A CN 201310239441A CN 103278278 B CN103278278 B CN 103278278B
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- release lever
- carriage release
- strength tester
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Abstract
A strength tester for foot metatarsophalangeal joints comprises a base plate, a pedal, a seat, a tension sensor and a computer. The seat is fixedly arranged at the back end of the base plate, a leg fixing frame is arranged on the base plate and is located in front of the seat, a suspension bracket is arranged at the front end of the base plate and is located in front of the leg fixing frame, the upper end of the tension sensor is hung on the suspension bracket, the back end of the pedal is hinged to the front portion of the base plate, the front end of the pedal is connected with the tension input end of the tension sensor, and the signal input end of tension sensor is connected with the computer through a signal line. According to the strength tester for the foot metatarsophalangeal joints, the pedal is used for transmitting the motion of the metatarsophalangeal joints, the tension sensor and the computer are used for metering and processing the bending strength data of the metatarsophalangeal joints, the leg fixing frame and a heel limiting board are used for removing the disturbance of the motion of other joints, the data collection process is simplified, the collection repeatability is good, the data are accurate, and the strength tester for the foot metatarsophalangeal joints is proven to be reliable and stable.
Description
Technical field:
The present invention relates to mechanical field, particularly relate to athletic training and Test Equipment, particularly for the strength building of foot articulationes metatarsophalangeae and the technology of test, particularly a kind of foot articulationes metatarsophalangeae strength tester.
Background technology:
Articulationes metatarsophalangeae is under the jurisdiction of podarthral front portion, form by the bottom of caput metatarsale and proximal phalanx, belong to ellipsoid joint, can flexing (hook toes) be done around frontal axis and stretch (stretching toes) motion, also can do slight abduction (toe bones expansion) and adduction (toe bones closes up) motion around sagittal axis.In addition, articulationes metatarsophalangeae flexing, stretching, extension make metatarsal to upper and lower movement, can increase or reduce the radian of sufficient anterior arch, make forefoot depression or subside, and change the shape of inside of the foot.And, the extending range of articulationes metatarsophalangeae be greater than flexing (assessment of Creighten & Oleson. Plantar Fasciitis runner articulationes metatarsophalangeae scope of activities. orthopedic with kinesiatrics magazine, 1987,8 (7): 357-361): the scope initiatively stretched is 50 °-60 °, the scope of active flexion is 30 °-40 °, passive stretch is in final stage of taking a step (pushing off ground) and important, and angle can reach even more than 90 °.
When studying lower extremity movement, what prior art was often paid close attention to is all the large joints of lower limb three: hip, knee, ankle; Even if relate to foot, be also only the motion apart from upper joint and subtalar joint, most or sufficient curvature movement.And for the sufficient curvature movement walked, run, jump, the final generation of action must be at articulationes metatarsophalangeae, therefore the research for articulationes metatarsophalangeae indispensable (Stefanyshyn & Fuscoc. improves dash performance [J] by increasing footwear flexion stiffness. sport biomechanics magazine, 2004,3 (1): 55-66.).And in recent years, in the country of some higher competitivenesses, the trainer of many races, jumping project (have and push off action) emphasizes the training of the mobility that articulationes metatarsophalangeae bends and stretches and unguiflexor strength thereof, the force production comprising adjacent segment is increased while pushing off ground in order to assist foot, thus obtain larger reacting force of supporting, improve athletic performance (Goldmann, Sannom, Willwacher, et al. articulationes metatarsophalangeae flexing muscular strength can strengthen the potential possibility [J] of athletic performance. sports science magazine, 2013,31 (4): 424-433.)
Although in recent years, physical research persons start the muscle strength paying attention to articulationes metatarsophalangeae, and the concrete scheme of neither one is tested and quantizes these muscle powers; Dependence test instrument or embodiment is not found according to State Patent Office's retrieval center patent consulting yet, so proposition of the present invention is exactly to solve the problem: test and quantize the flexing strength of articulationes metatarsophalangeae, for trainer and sportsman provide authentic data with clear and definite training objective.
Summary of the invention:
The object of the present invention is to provide a kind of foot articulationes metatarsophalangeae strength tester, described this foot articulationes metatarsophalangeae strength tester to solve in prior art cannot Measurement accuracy articulationes metatarsophalangeae flexing strength and carry out the technical matters of special training.
This foot articulationes metatarsophalangeae strength tester of the present invention, comprise chassis, pedal, seat, pulling force sensor and computing machine, described pulling force sensor includes a pulling force input end and a signal output part, wherein, described seat is fixedly installed on the rear end on described chassis, chassis is provided with a leg fixed mount, described leg fixed mount is positioned at the front of seat, the front end on chassis is provided with a hanger bracket, described hanger bracket is positioned at the front of leg fixed mount, the upper end of described pulling force sensor is suspended on hanger bracket, the rear end of described pedal and the front portion on chassis hinged, the front end of pedal is connected with the pulling force input end of pulling force sensor, the signal output part of pulling force sensor is connected with described computing machine by signal wire.
Further, the sliding pair of fore-and-aft direction is provided with between seat and chassis.
Further, the rear portion on chassis is provided with slide rail along its length, and seat is arranged on described slide rail, is provided with sliding pair between seat and slide rail.
Further, the seat board of seat is arranged on an elevating mechanism and a rotating mechanism.
Further, the front end on chassis is provided with a whirligig, and described whirligig comprises an inner rotary table, and described hanger bracket is fixedly installed on described inner rotary table.
Further, described leg fixed mount comprises support, compressing tablet and adjusting part, and described support is in shaped door, and described adjusting part is arranged on described support, and described compressing tablet is arranged on the lower end of described adjusting part.
Further, described adjusting part comprises slide block, threaded rod and nut, described slide block and the sliding pair being configured to above-below direction, and described slide block is connected with threaded rod, described threaded rod by nut and described support fastening.
Further, described hanger bracket comprises body frame, first carriage release lever and the second carriage release lever, described body frame is in shaped door, the first described carriage release lever is in being horizontally placed on body frame, sliding pair is respectively arranged with between the two ends of the first carriage release lever and the vertical bar of body frame, first carriage release lever two ends are connected with securing member, the second described carriage release lever is horizontally set on the top of the first carriage release lever, sliding pair is provided with between the two ends of the second carriage release lever and the vertical bar of body frame, second carriage release lever is provided with vertical screw rod, described vertical screw rod is connected with the top of body frame by screw thread pair, threaded rod upper end is provided with control hand wheel.
Further, the front end on chassis is provided with a heel limiting plate, described heel limiting plate comprises rectangular slab, one end of rectangular slab is provided with arc, rectangular slab is provided with chute along its length, the front portion on chassis is provided with two set collars, and heel limiting plate is connected by described chute and described set collar, set collar by bolt by fastening for heel limiting plate.
Further, described pedal comprises semi-circular plate and square plate, and described square plate is connected with described chassis by rotating shaft.
Principle of work of the present invention is:
Seat, fixed mount, hanger bracket and pedal are connected by chassis.The height of seat can regulate according to the lower-leg length of experimenter: require that experimenter is when measuring foot articulationes metatarsophalangeae strength, health is kept upright, face dead ahead, and both hands are put on seat two side handrail, thigh and health in 90 °, shank and thigh in 90 °, ankle joint angle is 90 °.Leg fixed mount fixes shank at the nearly knee joint place of thigh, and shank can not be moved up and down, and gets rid of the possibility of ankle motion.To be fixed on by the foot of experimenter on the heel limiting plate on base plate by fixed band, heel limiting plate can the difference long according to experimenter's pin regulate, with ensure foot (middle part and rear portion) can not up and down, left and right and moving forward and backward.
Pulling force sensor is suspended on hanger bracket, lower even pedal.Pedal can be up and down with the flexing strength measuring foot articulationes metatarsophalangeae; Also can left and right movable to adjust the angle of inclination (± 30 °) of pedal according to the difference at experimenter's articulationes metatarsophalangeae oblique angle, make the foot articulationes metatarsophalangeae of experimenter be in the best and to have an effect angle; Also can move forward and backward the front and back position to regulate pedal according to the length of experimenter's toes, and record the distance (L) of articulationes metatarsophalangeae to pulling force sensor perpendicular line.During test, after requiring that experimenter hears beginning password, press down pedal with sole of the foot toe to full capacity and continue 3-5 second, this computer-chronograph is gathered by data line and preserves the flexing power (F) of the foot articulationes metatarsophalangeae that pulling force sensor records.
After collecting above data, calculate the flexing moment (M) of human body articulationes metatarsophalangeae by following formula, to reflect the flexing strength characteristics of articulationes metatarsophalangeae.
M?=?L?×?F
The present invention compares with prior art, and its effect is actively with obvious.The present invention utilizes pedal to transmit the motion of sole of the foot toe, pulling force sensor and computing machine is utilized to measure and process articulationes metatarsophalangeae flexing force data, leg fixed mount and heel limiting plate is utilized to get rid of the interference of other joint motions, data acquisition flow is simple and clear, gather reproducible, the accurate data gathered, reflects the reliability and stability of foot articulationes metatarsophalangeae strength tester; And personalized collection can also be implemented according to the difference of experimenter's individual condition, describe the flexibility and changeability of foot articulationes metatarsophalangeae strength tester.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of a kind of foot articulationes metatarsophalangeae strength tester of the present invention.
Fig. 2 is the vertical view of Fig. 1.
Fig. 3 is the structural representation of the leg fixed mount in the present invention.
Fig. 4 is the structural representation of the hanger bracket in the present invention.
Fig. 5 is the structural representation on the chassis in the present invention.
Fig. 6 is the vertical view of Fig. 5.
Fig. 7 is the structural representation of the pedal in the present invention.
Fig. 8 is the vertical view of Fig. 7.
Fig. 9 is the structural representation of the heel limiting plate in the present invention.
Figure 10 is the left view of Fig. 9.
Embodiment:
Embodiment 1:
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, shown in Fig. 9 and Figure 10, a kind of foot articulationes metatarsophalangeae strength tester of the present invention, comprise chassis 1, pedal 2, seat 3, leg fixed mount 4, hanger bracket 5, pulling force sensor 6 and computing machine (not shown in FIG.), described hanger bracket 5 is located at the front end on described chassis 1 rotationally, described leg fixed mount 4 is fixed on described chassis 1 postmedian, described rear end, chassis 1 is located at by described seat 3, described pedal 2 front end is connected with the input end of described pulling force sensor 6, described pedal 2 rear end is located on described chassis 1 rotationally, described pulling force sensor 6 upper end hangs on described hanger bracket, the signal output part of described pulling force sensor 6 is connected with described computing machine by signal wire, described front portion, chassis 1 is also provided with heel limiting plate 7.
Further, the sliding pair of fore-and-aft direction is provided with between described seat 3 and described chassis 1.
Further, in the middle of described rear portion, chassis 1, be provided with slide rail 11 along its length, described seat 3 is located on described slide rail 11, is provided with sliding pair between described seat and described slide rail.
Further, the seat board of described seat 3 and base plate can OQ t and rotations.
Further, described front end, chassis 1 is rounded, and described rear portion, chassis is square structure, and described circle is provided with inner rotary table 12 and outer ring 13, and described inner rotary table 12 relatively outer ring is rotatable, and described hanger bracket 5 is fixed on described inner rotary table 12.
Further, described leg fixed mount 4 comprises support 41, compressing tablet 42 and adjusting part, described support 41 is in shaped door, described adjusting part is located on described support, described adjusting part lower end is located at by described compressing tablet 42, and described compressing tablet 42 can move up and down under described adjusting part drives.Compressing tablet 42 can adopt soft, the antifrictional materials such as rubber to form.
Further, described adjusting part comprises slide block 43, threaded rod 44 and nut 45, described slide block 43 and support 41 form the sliding pair of above-below direction, and described slide block is connected with threaded rod, fastening by nut and described support of described threaded rod.
Further, described hanger bracket 5 comprises body frame 51, first carriage release lever 52 and the second carriage release lever 53, described body frame 51 is in shaped door, the first described carriage release lever 52 is in being horizontally placed on described body frame, sliding pair is provided with between the first described carriage release lever two ends and the vertical bar of described body frame, first carriage release lever two ends also have securing member 54, the second described carriage release lever 53 is located at above the first described carriage release lever in level, the second described carriage release lever 53 two ends and the vertical bar of described body frame are provided with sliding pair, the second described carriage release lever 53 is provided with vertical screw rod 55, described vertical screw rod 55 is connected with described body frame 51 top by screw thread pair, described threaded rod upper end also has control hand wheel 56.
Further, described pedal 2 comprises semi-circular plate and square plate, and described square plate is connected with described chassis by rotating shaft.
Further, described heel limiting plate 7 comprises rectangular slab 71, arc 72 is provided with in rectangular slab 71 one end, described rectangular slab 71 is provided with chute 73 along its length, two set collars 8 are provided with in described front portion, chassis 1, described heel limiting plate is coordinated by described chute and set collar and is located on described chassis, described set collar 8 by bolt by fastening for described heel limiting plate 7.
During test, after requiring that experimenter hears beginning password, press down pedal with sole of the foot toe to full capacity and continue 3-5 second, this computer-chronograph is gathered by data line and preserves the power (F) of the foot articulationes metatarsophalangeae that one dimension pulling force sensor records.
After collecting above data, calculate the flexing moment (M) of human body articulationes metatarsophalangeae by following formula, to reflect the strength characteristics of articulationes metatarsophalangeae.
M?=?L?×?F
The above-mentioned description to embodiment can understand for the ease of those skilled in the art and use the present invention.Person skilled in the art obviously can make suitable amendment to these embodiments soon, and General Principle described herein is applied in other embodiment and need not through performing creative labour.Therefore, the invention is not restricted to embodiment here, those skilled in the art are according to announcement of the present invention, and the improvement made for the present invention and amendment all should within protection scope of the present invention.
Claims (8)
1. a foot articulationes metatarsophalangeae strength tester, comprise chassis, pedal, seat, pulling force sensor and computing machine, described pulling force sensor includes a pulling force input end and a signal output part, it is characterized in that: described seat is fixedly installed on the rear end on described chassis, chassis is provided with a leg fixed mount, described leg fixed mount is positioned at the front of seat, the front end on chassis is provided with a hanger bracket, described hanger bracket is positioned at the front of leg fixed mount, the upper end of described pulling force sensor is suspended on hanger bracket, the rear end of described pedal and the front portion on chassis hinged, the front end of pedal is connected with the pulling force input end of pulling force sensor, the signal output part of pulling force sensor is connected with described computing machine by signal wire, described leg fixed mount comprises support, compressing tablet and adjusting part, described support is in shaped door, described adjusting part is arranged on described support, described compressing tablet is arranged on the lower end of described adjusting part, described adjusting part comprises slide block, threaded rod and nut, described slide block is configured to the sliding pair of above-below direction with propping up, described slide block is connected with threaded rod, described threaded rod by nut and described support fastening, described hanger bracket comprises body frame, first carriage release lever and the second carriage release lever, described body frame is in shaped door, the first described carriage release lever is in being horizontally placed on body frame, sliding pair is respectively arranged with between the two ends of the first carriage release lever and the vertical bar of body frame, first carriage release lever two ends are connected with securing member, the second described carriage release lever is horizontally set on the top of the first carriage release lever, sliding pair is provided with between the two ends of the second carriage release lever and the vertical bar of body frame, second carriage release lever is provided with vertical screw rod, described vertical screw rod is connected with the top of body frame by screw thread pair, threaded rod upper end is provided with control hand wheel.
2. a kind of foot articulationes metatarsophalangeae strength tester as claimed in claim 1, is characterized in that: the sliding pair being provided with fore-and-aft direction between seat and chassis.
3. a kind of foot articulationes metatarsophalangeae strength tester as claimed in claim 2, it is characterized in that: the rear portion on chassis is provided with slide rail along its length, seat is arranged on described slide rail, is provided with sliding pair between seat and slide rail.
4. a kind of foot articulationes metatarsophalangeae strength tester as claimed in claim 1, is characterized in that: the seat board of seat is arranged on an elevating mechanism and a rotating mechanism.
5. a kind of foot articulationes metatarsophalangeae strength tester as claimed in claim 1, is characterized in that: the front end on chassis is provided with a whirligig, and described whirligig comprises an inner rotary table, and described hanger bracket is fixedly installed on described inner rotary table.
6. a kind of foot articulationes metatarsophalangeae strength tester as claimed in claim 1, is characterized in that:
7. a kind of foot articulationes metatarsophalangeae strength tester as claimed in claim 1, it is characterized in that: the front end on chassis is provided with a heel limiting plate, described heel limiting plate comprises rectangular slab, one end of rectangular slab is provided with arc, rectangular slab is provided with chute along its length, the front portion on chassis is provided with two set collars, and heel limiting plate is connected by described chute and described set collar, set collar by bolt by fastening for heel limiting plate.
8. a kind of foot articulationes metatarsophalangeae strength tester as claimed in claim 1, it is characterized in that: described pedal comprises semi-circular plate and square plate, described square plate is connected with described chassis by rotating shaft.
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| CN201310239441.2A CN103278278B (en) | 2013-06-17 | 2013-06-17 | Strength tester for foot metatarsophalangeal joints |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310239441.2A CN103278278B (en) | 2013-06-17 | 2013-06-17 | Strength tester for foot metatarsophalangeal joints |
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| CN103278278A CN103278278A (en) | 2013-09-04 |
| CN103278278B true CN103278278B (en) | 2015-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109925070A (en) * | 2019-03-28 | 2019-06-25 | 山东大学齐鲁医院(青岛) | Detection device in Inferior tibiofibular joint stability art |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106214167A (en) * | 2016-09-02 | 2016-12-14 | 上海逸动医学科技有限公司 | A kind of joint measuring stress instrument |
| CN109394219B (en) * | 2018-09-28 | 2024-02-23 | 汪毅 | Foot function measuring instrument and use method thereof |
| CN111407428B (en) * | 2020-03-30 | 2021-02-26 | 山东大学齐鲁医院(青岛) | Tibiofibular joint stability detector under jaw type |
| CN111568434B (en) * | 2020-05-21 | 2022-12-13 | 上海体育学院 | Human body balance test joint detection device system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US7276018B2 (en) * | 2001-10-15 | 2007-10-02 | Steven Boyd Studdard | Reclining exercise chair |
| US7322653B2 (en) * | 2003-06-13 | 2008-01-29 | Vlad Dragusin | Integrated videogaming and computer workstation |
| CN1686030A (en) * | 2005-04-29 | 2005-10-26 | 刘彩虹 | Body building amusement seisure chair |
| CN101229420B (en) * | 2007-01-23 | 2012-07-25 | 宁波市鄞州迪赛电子科技有限公司 | Body-building chair with sports signal output organization |
| CN101623548B (en) * | 2009-08-14 | 2010-11-10 | 清华大学 | Knee-joint function recovery trainer of below-knee amputation |
| CN203323939U (en) * | 2013-06-17 | 2013-12-04 | 上海体育学院 | Foot metatarsophalangeal joint force tester |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109925070A (en) * | 2019-03-28 | 2019-06-25 | 山东大学齐鲁医院(青岛) | Detection device in Inferior tibiofibular joint stability art |
| CN109925070B (en) * | 2019-03-28 | 2020-03-20 | 山东大学齐鲁医院(青岛) | Detection device in tibiofibular syndesmosis stability operation |
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