采用频域方法提取肌电信号特征， 求取EMG功率谱的平均功率频率(mean power frequency)和中值频率(median frequency)是两种比 较常用的方法。
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mean power frequency slope 平均功率频率下降率
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。
The descriptive statistics for body weight normalized strength, normalized peak EMG, time to onset, time to peak, median frequency, mean power frequency, and frequency bands were calculated.
对于力量与体重、肌电图的峰值、起始时间、峰值时间、中位频率、平均功率、和频段均进行标准化描述后进行统计计算。
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