MAIN OUTCOME MEASURES: the rehabilitation time of facial expression muscle function was observed and the dynamic changes of conduction velocity of facial nerve were assayed.
主要观察指标：观察面部表情肌功能恢复的时间，检测面神经传导速度的动态变化。
The decrease in muscle fibre action potential conduction velocity (MCV) and electromyographic mean power frequency (MPF) has been reported by many researchers.
据报道疲劳时肌纤维动作电位传导速度(MCV)和肌电图平均功率频率(MPF)均有下降。
In all cases, amplitude of muscle response was significantly decreased, with prolonged distal latency and slowed conduction velocity.
所有患儿的复合肌肉动作电位波幅显著下降，伴有远端潜伏期和运动传导速度轻度改变。
In all cases, amplitude of muscle response was significantly decreased, with prolonged distal latency and slowed conduction velocity.
所有患儿的复合肌肉动作电位波幅显著下降，伴有远端潜伏期和运动传导速度轻度改变。
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