Serra G, Manca M, Tugnoli V, Cristofori M C, Bottoni M, Eleopra R
Boll Soc Ital Biol Sper. 1984 May 30;60(5):1013-7.
Muscular fatigue is a biological situation which is very difficult to quantify. The Authors studied through a computer analysis the power spectrum of electromyogram, recorded from abductor digiti minimi muscle during maximal and minimal contraction effort before and after fatigue and after muscle prolonged relaxation in 8 normal subjects. No significant spectrum differences were found between maximal and minimal effort in each trial, and between the spectra obtained before fatigue and after muscle prolonged relaxation. On the contrary significant differences were found between the spectra obtained after fatigue and the other conditions. The power spectrum analysis appears, also, to be a reliable neurophysiological parameter for the study of biological aspects of muscular fatigue.
肌肉疲劳是一种很难量化的生理状态。作者通过计算机分析，对8名正常受试者在疲劳前后最大和最小收缩力时以及肌肉长时间放松后从小指展肌记录的肌电图功率谱进行了研究。在每次试验中，最大和最小用力之间，以及疲劳前和肌肉长时间放松后获得的频谱之间均未发现明显的频谱差异。相反，在疲劳后获得的频谱与其他条件下的频谱之间发现了显著差异。功率谱分析似乎也是研究肌肉疲劳生物学方面的可靠神经生理参数。
