UNASSIGNED: Eighteen healthy subjects volunteered in FFS training with different amplitudes and frequencies. One hundred and twenty-eight channel surface EMG was recorded from the biceps brachii and then decoded after motion-artifact removal. The discharge timings were extracted and the coherence between different motor unit spike trains was calculated to quantify synchronized activation.
UNASSIGNED: Significant synchronization within the vibration cycle and/or its integer multiples is observed for all FFS trials, which increases with increased FFS amplitude. Our results reveal the basic physiological mechanism involved in FFS, providing a theoretical foundation for analyzing and introducing FFS into clinical rehabilitation programs.
■18名健康受试者自愿参加了不同幅度和频率的FFS训练。从肱二头肌记录了128个通道表面EMG,然后在运动伪影去除后进行解码。提取放电时间,并计算不同运动单位尖峰序列之间的相干性,以量化同步激活。
■在所有FFS试验中观察到振动周期和/或其整数倍内的显着同步,随着FFS振幅的增加而增加。我们的结果揭示了FFS涉及的基本生理机制,为将FFS分析和引入临床康复计划提供理论基础。