Innervation zones of fasciculating motor units: observations by a linear electrode array.
Innervation zones of fasciculating motor units: observations by a linear electrode array.
复制标题
引人入胜的电动机单元的神经区域:通过线性电极阵列进行观察。
DOI:
10.3389/fnhum.2015.00239
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发表时间:
2015
影响因子:
2.9
通讯作者:
Zhou P
中科院分区:
文献类型:
--
作者:
Jahanmiri-Nezhad F;Barkhaus PE;Rymer WZ;Zhou P
This study examines the innervation zone (IZ) in the biceps brachii muscle in healthy subjects and those with amyotrophic lateral sclerosis (ALS) using a 20-channel linear electromyogram (EMG) electrode array. Raster plots of individual waveform potentials were studied to estimate the motor unit IZ. While this work mainly focused on fasciculation potentials (FPs), a limited number of motor unit potentials (MUPs) from voluntary activity of 12 healthy and seven ALS subjects were also examined. Abnormal propagation of MUPs and scattered IZs were observed in fasciculating units, compared with voluntarily activated MUPs in healthy and ALS subjects. These findings can be related to muscle fiber reinnervation following motor neuron degeneration in ALS and the different origin sites of FPs compared with voluntary MUPs.
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影响因子:
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