Motor unit recruitment order during voluntary and electrically induced contractions in the tibialis anterior
Motor unit recruitment order during voluntary and electrically induced contractions in the tibialis anterior
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DOI：
10.1007/pl00005610
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发表时间：
1997-03-01
影响因子：
2
通讯作者：
Hainaut, K
中科院分区：
文献类型：
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作者：
Feiereisen, P;Duchateau, J;Hainaut, K
比较自愿收缩和电诱导收缩期间运动单位 (MU) 的募集顺序。通过使用尖峰触发平均，在 5 名受试者的人类胫骨前肌中总共记录了 302 个 MU，其募集阈值范围为最大自主收缩的 1% 至 88%。平均 (+/-SD) MU 力为 98.3+/-93.3 mN（平均扭矩 16.8+/-15.9 mNm），平均收缩时间 (CT) 为 46.2+/-12.7 ms。 MU 抽搐力和 CT 与随意收缩募集阈值之间的相关系数 (r) 分别为 +0.68 和 -0.38（P
The recruitment order of motor units (MU) was compared during voluntary and electrically induced contractions. With the use of spike-triggered averaging, a total of 302 MUs with recruitment thresholds ranging from 1% to 88% of maximal voluntary contraction were recorded in the human tibialis anterior muscle in five subjects. The mean (+/-SD) MU force was 98.3+/-93.3 mN (mean torque 16.8+/-15.9 mNm) and the mean contraction time (CT) 46.2+/-12.7 ms. The correlation coefficients (r) between MU twitch force and CT versus the recruitment threshold in voluntary contractions were +0.68 and -0.38 (P