%0 Journal Article
%T CHANGES OF sEMG PARAMETERS DURING ISOMETRIC FATIGUING CONTRACTIONS AND RECOVERY PERIOD<br>等长收缩诱发肌肉疲劳及恢复过程中表面肌电信号特征变化规律
%A YANG Hong-chun
%A WANG Jian
%A ZHANG Hai-hong
%A <br>杨红春
%A 王健
%A 张海红
%J 生物物理学报
%D 2005
%I 
%X Surface electromyographic (sEMG) signals during isometric fatiguing contractions were ana-lyzed with both linear and non-linear method to investigate the possible factor which dominated the changes in sEMG signals.The results demonstrated that the sEMG parameter,average EMG (AEMG),mean power frequency (MPF),Lempel-Ziv complexity (C(n)) and Determinism% (?T) in bicep bracii (BB) muscle,changed regularly during fatiguing contractions.In recovering period AEMG did not show observable regularity while MFP,C(n) and ?T remarkably recovered only by 2 seconds.These three parameters regressed rapidly in the initial 10 seconds and then slowed down.The rapid changes of sEMG parameters in recovery periods suggest that central controlling factor may play a more important role in shaping sEMG signals.
%K Fatigue
%K Surface electromyography
%K Lempel-Ziv complexity
%K Recurrence quantification analysis<br>疲劳
%K 表面肌电
%K 复杂度
%K 递归定量分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=E0C9D9BBED813D6674AC13E942EAC86D&aid=099752EC3F1A6A22&yid=2DD7160C83D0ACED&vid=659D3B06EBF534A7&iid=94C357A881DFC066&sid=44FDB9366EDDFA2B&eid=A22854835F81B3F8&journal_id=1000-6737&journal_name=生物物理学报&referenced_num=3&reference_num=24