%0 Journal Article
%T sEMG SIGNAL COMPLEXITY AND ENTROPY CHANGES DURING EXERCISE-INDUCED LOCAL MUSCLE FATIGUE<br>局部肌肉疲劳的表面肌电信号复杂度和熵变化
%A LIU Jia-hai
%A WANG Jian
%A LUO Xiao-fang
%A <br>刘加海
%A 王健
%A 罗晓芳
%J 生物物理学报
%D 2004
%I 
%X In order to investigate the behavior of biceps brachii and lumbar erector muscle sEMG signal Lempel-Ziv complexity and Kolmogorov entropy during muscle fatigue, 18 male college students volunteered to take part in the test which required them to complete isomeric and dynamic fatigue contraction test separately. The sEMG signals of biceps brachii and lumbar erector muscle were recorded and their Lempel-Ziv complexity and Kolmogorov entropy were analyzed after sustained time and contraction repetitions standardization processing. The results showed that both Lempel-Ziv complexity and Kolmogorov entropy declined linearly with fatiguing contractions regardless isometric or dynamic contraction test. This results may be related with the "coordination effects" of neuro-control system.
%K Local muscle fatigue
%K sEMG signal
%K Complexity
%K Entropy<br>局部肌肉疲旁
%K 表面肌电信号
%K 复杂度
%K 熵
%K 肱二头肌
%K 腰部脊竖肌
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=E0C9D9BBED813D6674AC13E942EAC86D&aid=488C90A6865B505D&yid=D0E58B75BFD8E51C&vid=A04140E723CB732E&iid=38B194292C032A66&sid=FEF02B4635FE8227&eid=974CBB04624305A1&journal_id=1000-6737&journal_name=生物物理学报&referenced_num=6&reference_num=16