Delwaide P J, Crenna P, Fleron M H
J Neurol Neurosurg Psychiatry. 1981 Aug;44(8):699-707. doi: 10.1136/jnnp.44.8.699.
Modification of soleus and anterior tibial anterior horn cell excitability following ipsilateral and contralateral stimulations of the sural nerve was studied by either the H reflex (for the soleus and anterior tibial muscles) or the F response (for the anterior tibial muscles). Several intensities of stimulation were employed. In every instance the recovery curves showed two distinct peaks of facilitation, which appeared with the same delay in muscles with antagonist functions. Also, reciprocal facilitation and inhibition phenomena which occurred after a 25 ms delay and which lasted more than 1000 ms were observed. The intervention of suprasegmentary neuronal mechanisms is proposed to explain the facilitation peaks, while the longer lasting phenomena are probably dependent on spinal processes.
通过H反射(用于比目鱼肌和胫骨前肌)或F反应(用于胫骨前肌)研究了在同侧和对侧腓肠神经刺激后比目鱼肌和胫骨前肌前角细胞兴奋性的改变。采用了几种刺激强度。在每种情况下,恢复曲线均显示出两个明显的易化峰,在具有拮抗功能的肌肉中出现的延迟相同。此外,还观察到在25毫秒延迟后出现且持续超过1000毫秒的相互易化和抑制现象。提出节段上神经元机制的干预来解释易化峰,而持续时间较长的现象可能依赖于脊髓过程。