由于直接检查运动神经近段困难,迄今为止尚不能充分了解其传导速度减慢;F波潜伏时(Fw)反映的不只是近段异常,而且是神经干全长的资料。本文由刺激腕部得到的Fw、远端M波潜伏时(Mw)和刺激Erb’s点得到的M波潜伏时(Me),计算出Erb’s点以内的近段传导时间,探讨糖尿病性多发神经病与正中神经近段传导时间的关系。 Due to the direct examination of motor nerve proximal difficulties, so far it can not fully understand the slowdown of its conduction speed; F wave latency (Fw) reflects not only the proximal abnormalities, but also the full length of the neural stem. In this paper, we calculated the Fw near the wrist, the latency (M w) of the distal M wave and the M wave latency (Me) obtained from stimulating the Erb’s point to calculate the near-section conduction time within the Erb’s point to explore the relationship between diabetic polyneuropathy Relationship between nerve conduction time.