El-Tohamy A, Sedgwick E M
J Physiol. 1983 Apr;337:497-508. doi: 10.1113/jphysiol.1983.sp014638.
A period of inhibition of the soleus H reflex, called D1 inhibition, follows stimulation of the nerve to the antagonist muscles, the peroneal nerve, in normal man. The results confirm earlier descriptions of D1 and show an intracord latency of approximately 4-5 msec and a reduction of the H reflex by about 60%. D1 reaches its maximum 15-20 msec after stimulation and its duration is more than 30 msec. Effective stimuli were volleys of two to five pulses given as 10 msec duration bursts at a strength of 1.2 motor thresholds. Cutaneous afferents were ineffective and the possibility that D1 is mediated by low threshold muscle afferents is discussed. D1 produces the same proportions of inhibition of the H reflex when the H reflex is facilitated by plantarflexion or depressed by dorsiflexion.
在正常人体中，刺激拮抗肌（腓总神经）的神经后，比目鱼肌H反射会出现一段抑制期，称为D1抑制。结果证实了对D1的早期描述，显示脊髓内潜伏期约为4 - 5毫秒，H反射降低约60%。D1在刺激后15 - 20毫秒达到最大值，持续时间超过30毫秒。有效刺激是以1.2运动阈值强度、持续10毫秒的2至5个脉冲串。皮肤传入神经无效，并讨论了D1由低阈值肌肉传入神经介导的可能性。当H反射通过跖屈得到易化或通过背屈受到抑制时，D1对H反射产生相同比例的抑制。
