Forssberg H, Svartengren G
Neurosci Lett. 1983 Nov 11;41(3):283-8. doi: 10.1016/0304-3940(83)90464-0.
Locomotor output to the gastrocnemius muscle was studied after a transposition giving the muscle a dorsi-flexing action around the ankle. Except for a slight prolongation of the activity, the old extensor pattern was retained in all cats throughout the study. A peak of activity before termination was seen in one cat at higher walking speed. It is concluded that neither the spinal locomotor network controlling the gastrocnemius muscle nor the supraspinal circuits influencing the network exhibit a high degree of plasticity in response to locating the muscle in a position antagonistic to the original.
在进行移位手术使腓肠肌围绕踝关节产生背屈动作后，对其运动输出进行了研究。在整个研究过程中，除了活动稍有延长外，所有猫都保留了原有的伸肌模式。在一只猫以较高行走速度时，在终止前出现了一个活动峰值。得出的结论是，无论是控制腓肠肌的脊髓运动网络，还是影响该网络的脊髓上神经回路，在将肌肉置于与原来相反的位置时，都没有表现出高度的可塑性。
