Robichaud J A, Brunt D
Department of Physical Therapy, University of Florida, Gainesville 32610.
Percept Mot Skills. 1994 Apr;78(2):427-34. doi: 10.2466/pms.1994.78.2.427.
This study investigated the effect of circumferential pressure on timing and muscle-response parameters during ballistic ankle plantar flexion in 15 young healthy subjects. Circumferential pressure was provided by an air-splint applied around the lower calf. Data were collected at 1, 3, and 5 min. prior to, during, and following application of pressure. A 3 x 3 repeated-measures analysis of variance indicated significant increases in premotor and reaction times during application of pressure. There was no main effect for magnitude of muscle activity or motor time. Results support previous studies showing decreases in the excitability of the motor-neuron pool with circumferential pressure and an inverse relationship between excitability and premotor time.
本研究调查了15名年轻健康受试者在进行弹道式踝关节跖屈时，圆周压力对时间和肌肉反应参数的影响。圆周压力由环绕小腿下部的空气夹板提供。在施加压力之前、期间和之后的1、3和5分钟收集数据。一个3×3重复测量方差分析表明，在施加压力期间，运动前时间和反应时间显著增加。肌肉活动幅度或运动时间没有主效应。结果支持了先前的研究，这些研究表明圆周压力会降低运动神经元池的兴奋性，并且兴奋性与运动前时间呈负相关。
