Hori H
Nihon Hotetsu Shika Gakkai Zasshi. 1989 Feb;33(1):37-42. doi: 10.2186/jjps.33.37.
The aim of this paper was to determine the best parameter for describing the muscle fatiguing process. Three parameters of mean power frequency (MPF), median frequency (MF), and peak frequency (PF) were tested with healthy subjects. During 10 sessions at more than one week intervals, the subjects performed the same endurance test with clenching at 80% of maximal electromyographic activity. Changes in the surface electromyogram of the bilateral masseter and temporal muscles were obtained in the above three parameters. From the comparison between the three parameters, PF showed the largest scattering, and MPF indicated a clear difference calculated from the values before and after fatigue. Thus it is concluded that MPF may be the best parameter.
本文的目的是确定描述肌肉疲劳过程的最佳参数。对健康受试者测试了平均功率频率（MPF）、中位频率（MF）和峰值频率（PF）这三个参数。在间隔超过一周的10次测试中，受试者以最大肌电图活动的80%进行握拳动作，完成相同的耐力测试。获取了双侧咬肌和颞肌表面肌电图在上述三个参数方面的变化。通过对这三个参数的比较，PF的离散度最大，而MPF显示出疲劳前后数值计算得出的明显差异。因此得出结论，MPF可能是最佳参数。
