Lower limb athletic ability quantitative evaluation method and system based on force platform of running machine

A technology for quantitative evaluation and exercise ability, applied in sports accessories, training equipment for adjusting cardiovascular system, training equipment for adjusting coordination, etc., can solve the problem of lack of simple and practical methods for segmenting specific phases, no evaluation of exercise function, and reliable parameters Insufficient performance and other problems, to achieve the effect of easy operation and realization, low cost and easy operation

Active Publication Date: 2019-02-15
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, most studies use mechanical data to calculate parameters such as step length, step width, cycle duration, and support period duration, but do not evaluate sports from parameters such as driving force and pressure center space symmetry that reflect the coordination and balance...

Method used

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  • Lower limb athletic ability quantitative evaluation method and system based on force platform of running machine
  • Lower limb athletic ability quantitative evaluation method and system based on force platform of running machine
  • Lower limb athletic ability quantitative evaluation method and system based on force platform of running machine

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Embodiment 1

[0041] The invention provides a method for quantitatively evaluating lower limb exercise capacity based on a treadmill force platform, such as figure 1 As shown, the concrete steps of a kind of lower limb exercise ability quantitative evaluation method based on the treadmill force platform of the present embodiment include:

[0042] S101. Use the film pressure sensor 4 and the three-dimensional force sensor 5 on the treadmill to collect the plantar pressure signal and the force signal of the force platform when the tester wears the special shoes 2 for the experiment and walks on the treadmill respectively; Put on the unified experimental special shoes 2, walk on the treadmill at an optional speed, in which the three-dimensional force sensor is installed at the four corners of the bottom of the treadmill, the three-dimensional force sensor is connected to the transmitter, the transmitter is connected to the data acquisition card, and the data acquisition card is connected to the...

Embodiment 2

[0084] Such as figure 2 As shown, a kind of lower extremity quantitative evaluation system based on the treadmill force platform of the present invention includes a treadmill 1, also includes a computer and an experimental special shoe 2 for collecting the tester's plantar pressure signal, and the experimental special shoe has a built-in insole 3 , the heel and toe of the insole 3 are equipped with a thin-film pressure sensor 4, and the thin-film pressure sensor 4 is connected to the computer; the four corners of the bottom of the treadmill 1 are equipped with a three-dimensional force sensor 5, and the three-dimensional force sensor 5 is connected with a transmitter, and the transmitter is connected There is a data acquisition card, and the data acquisition card is connected with the computer.

[0085] During specific realization, the speed of the treadmill is adjustable, and the front and rear bases of the treadmill are provided with fixed support frames, and the three-dime...

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Abstract

The invention discloses a lower limb athletic ability quantitative evaluation method and system based on a force platform of a running machine. By collecting a signal of the force platform of the running machine and a pressure signal of a foot sole pressure sensor in the process that a user walks on the running machine, the time points when the left and right feet get off and touch the ground arefound in the walking process through a foot sole pressure signal; after smoothing and noise reducing, a collected force signal of the force platform is calculated to obtain a pressure center track inthe walking process; according to displacement and time of the pressure center track, the current moving speed of each pressure center point is calculated; the pressure center track is subjected to period cutting and time-phase cutting by utilizing the time points when the left and right feet get off and touch the ground; the pressure center track after period cutting and the track moving speed are utilized for obtaining a pressure center change chart; the pressure center track after time-phase cutting is utilized and calculated for quantizing evaluating parameters. According to the method andsystem, the quantification of lower limb athletic ability is more accurate and more objective.

Description

technical field [0001] The invention relates to the field of exercise evaluation, and more specifically, relates to a method and system for quantitatively evaluating lower limb exercise capacity based on a treadmill force platform. Background technique [0002] The motor ability of the lower limbs is very important for daily activities such as walking and standing. The motor activation, muscle tone, joint movement and balance of the lower limbs are regulated by the brain, and the gait during walking is regulated by the spinal cord. Some neurological diseases, such as hemiplegia caused by stroke, can cause lower limb motor dysfunction, such as decreased muscle activation, slowed gait, motor coordination disorders, and differences in the load capacity and driving force of the left and right lower limbs, which affect patients' daily walking Activity. [0003] The assessment of motor function of lower limbs is helpful for assisting the diagnosis of diseases, helping to choose a...

Claims

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Application Information

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IPC IPC(8): A63B22/02A63B24/00
CPCA63B22/02A63B24/0087
Inventor 罗洁罗海珍宋嵘
Owner SUN YAT SEN UNIV
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