Innervation zone shift with changes in joint angle in the brachial biceps

被引：48
|
作者：
Martin, S [1 ]
MacIsaac, D [1 ]
机构：
[1] Univ New Brunswick, Inst Biomed Engn, Dept Elect & Comp Engn, Fredericton, NB E3B 5A3, Canada
来源：
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY | 2006年 / 16卷 / 02期
基金：
加拿大自然科学与工程研究理事会;
关键词：
innervation zone; electrode array; myoclectric signal; conduction velocity;
D O I：
10.1016/j.jelekin.2005.06.010
中图分类号：
Q189 [神经科学];
学科分类号：
071006 ;
摘要：
Empirical evidence is presented suggesting that the innervation zone of the brachial biceps shifts relative to recording electrodes with changes in joint angle. Myoelectric signal data were acquired from five subjects using a 16-channel linear electrode array, and analyzed to determine a reversal in signal propagation direction indicating innervation zone location. An analysis of the effect of joint angle changes on innervation zone location yielded statistically significant results (ANOVA, alpha= 0.05, p < 0.001) suggesting that the innervation zone moves between 5 and 30 mm in a direction distal to the shoulder as the arm is extended, statistically independent of force level (ANOVA, alpha = 0.05 p > 0.2). (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码：144 / 148
页数：5
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