股外侧肌、股内侧肌和股直肌的神经肌肉疲劳阈值。

Neuromuscular fatigue thresholds of the vastus lateralis, vastus medialis and rectus femoris muscles.

作者信息

Housh T J, deVries H A, Johnson G O, Evans S A, Housh D J, Stout J R, Bradway R M, Evetovich T K

机构信息

Human Performance Laboratory, University of Nebraska-Lincoln 68588-0229, USA.

出版信息

Electromyogr Clin Neurophysiol. 1996 Jun;36(4):247-55.

PMID:8803497

Abstract

The purpose of this study was to compare the power outputs associated with the onset of neuromuscular fatigue in the superficial muscles of the quadriceps femoris group by simultaneously monitoring the EMG activity from the vastus lateralis (VL), vastus medialis (VM) and rectus femoris (RF) muscles during a Physical Working Capacity at the Fatigue Threshold (PWCFT) test. Eleven adult males (mean +/- SD = 24 +/- 3y) served as subjects. There were no significant (p > 0.05) differences among the mean PWCFT values for the VL (226 +/- 58 W), VM (223 +/- 58 W) and RF (203 +/- 54 W) muscles. These findings indicates that the superficial muscles of the quadriceps femoris group generally responded as a unit with respect to the onset (threshold) of neuromuscular fatigue as measured by the PWCFT test.

摘要

本研究的目的是通过在疲劳阈值时的体力工作能力（PWCFT）测试期间，同时监测股外侧肌（VL）、股内侧肌（VM）和股直肌（RF）的肌电图活动，比较股四头肌组表层肌肉中与神经肌肉疲劳发作相关的功率输出。11名成年男性（平均±标准差=24±3岁）作为受试者。VL（226±58W）、VM（223±58W）和RF（203±54W）肌肉的平均PWCFT值之间无显著差异（p>0.05）。这些结果表明，通过PWCFT测试测量，股四头肌组的表层肌肉在神经肌肉疲劳发作（阈值）方面通常作为一个整体做出反应。