在人类步态中，腓肠神经诱发反射时，内侧腓肠肌比外侧腓肠肌激活程度更高。
Medial gastrocnemius is more activated than lateral gastrocnemius in sural nerve induced reflexes during human gait.
作者信息
Duysens J, van Wezel B M, Prokop T, Berger W
机构信息
Department of Medical Physics and Biophysics, University of Nijmegen, The Netherlands.
出版信息
Brain Res. 1996 Jul 15;727(1-2):230-2. doi: 10.1016/0006-8993(96)00525-2.
PMID:8842404
Abstract
In humans the sural nerve was stimulated at one of 16 phases of the step cycle. In MG (medial gastrocnemius) the amplitude of the P2 responses (latency 80-93 ms) was on average 1.3 times larger than the corresponding background activity while this was 0.9 for LG (lateral gastrocnemius; predominantly suppressive responses). It is speculated that such differences contribute to an exorotation moment during gait.
摘要
在人体中，在步周期的16个阶段之一刺激腓肠神经。在腓肠内侧肌（MG）中，P2反应（潜伏期80 - 93毫秒）的幅度平均比相应的背景活动大1.3倍，而在腓肠外侧肌（LG）中这一比例为0.9（主要是抑制性反应）。据推测，这种差异导致了步态中的外旋力矩。
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