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Evaluation of upper limb muscle fatigue based on surface electromyography

Fatigue is believed to be a major contributory factor to occupational injuries in machine operators. The development of accurate and usable techniques to measure operator fatigue is therefore important. In this study, we used a novel method based on surface electromyography (sEMG) of the biceps brac...

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Published in:Science China. Life sciences 2011-10, Vol.54 (10), p.939-944
Main Authors: Zhou, QianXiang, Chen, YuHong, Ma, Chao, Zheng, XiaoHui
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description Fatigue is believed to be a major contributory factor to occupational injuries in machine operators. The development of accurate and usable techniques to measure operator fatigue is therefore important. In this study, we used a novel method based on surface electromyography (sEMG) of the biceps brachii and the Borg scale to evaluate local muscle fatigue in the upper limb after isometric muscle action. Thirteen young males performed isometric actions with the upper limb at different force levels. sEMG activities of the biceps brachii were recorded during the actions. Borg scales were used to evaluate the subjective sensation of local fatigue of the biceps brachii after the actions, sEMG activities were analyzed using the one-third band octave method, and an equation to determine the degree of fatigue was derived based on the relationship between the variable and the Borg scale. The results showed that the relationship could be expressed by a conic curve, and could be used to evaluate muscle fatigue during machine operation.
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subjects Adult
Arm - physiopathology
Biomedical and Life Sciences
Electromyography - methods
Humans
Life Sciences
Male
Muscle Fatigue
Research Papers
上肢
主观感觉
实用技术
活动记录
职业伤害
肌肉疲劳
表面肌电
评价
title Evaluation of upper limb muscle fatigue based on surface electromyography
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