THE POSITION OF INNERVATION ZONES IN THE BICEPS BRACHII INVESTIGATED BY SURFACE ELECTROMYOGRAPHY
THE POSITION OF INNERVATION ZONES IN THE BICEPS BRACHII INVESTIGATED BY SURFACE ELECTROMYOGRAPHY
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DOI：
10.1109/tbme.1985.325614
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发表时间：
1985-01-01
影响因子：
4.6
通讯作者：
SADOYAMA, T
中科院分区：
文献类型：
--
作者：
MASUDA, T;MIYANO, H;SADOYAMA, T
沿肌肉纤维放置的线性表面电极阵列检测两侧传播到肌腱的运动单位动作电位。传播源的位置被推定为标记神经支配区域。我们开发了一个计算机程序，它通过对记录的信号进行相关计算和线性回归来自动确定潜在的源。电极阵列中触点之间的间距为5.0 mm，而对于某些记录，指示估计源位置的直方图具有集中在1.0 mm区域的锐峰。在一些受试者的二头肌中，发现有两个相隔10-20 mm的神经支配带。与神经支配带对应的峰值根据收缩力量的不同而不同地改变其直方图分数。我们还构建了一个具有四列线性电极阵列的电极组件，并明确了二头肌的神经区的分布。
A linear surface electrode array placed along the muscle fibers detects motor unit action potentials propagating bilaterally to the tendons. The location of the propagation source is presumed to mark an innervation zone. We developed a computer program, which automatically determined the potential source by applying a correlation calculation and a linear regression to the recorded signals. The spacing between the contacts in the electrode array was 5.0 mm, whereas for some recordings the histogram indicating the position of estimated source had a sharp peak concentrated in a 1.0 mm area. In the biceps brachii some subjects were found to have two innervation zones separated by 10-20 mm. The peaks corresponding to the innervation zones differentially changed their histogram scores according to the contraction force. We also constructed an electrode assembly, which had four columns of the linear electrode arrays, and clarified the distribution of the innervation zones in the biceps brachii.