Arsenault A B, Winter D A, Marteniuk R G, Hayes K C
Scand J Rehabil Med. 1986;18(3):133-5.
This study was conducted to obtain information on the number of strides of EMG data needed per subject in a gait study. Ten strides of EMG data were cumulated on eight subjects for each of the soleus, rectus femoris, biceps femoris, vastus medialis and tibialis anterior muscles. The linear envelope of the EMG, normalized in time and amplitude, demonstrated a very high level of stability for a given subject, relative to the variability that was found across subjects. It was concluded that three strides of EMG data per subject provides information as reliable as that obtained from twelve strides.
本研究旨在获取步态研究中每个受试者所需肌电图（EMG）数据步幅数量的信息。针对比目鱼肌、股直肌、股二头肌、股内侧肌和胫骨前肌，在八名受试者身上累积了十步的EMG数据。经时间和幅度归一化处理的EMG线性包络，相对于不同受试者间的变异性而言，在给定受试者身上显示出非常高的稳定性。研究得出结论，每个受试者三步的EMG数据所提供的信息与十二步所获信息一样可靠。
