F 波是用超强刺激神经时在手足小肌肉记录到的迟发性肌肉反应,它是逆行激活运动神经元的结果。测定 F 波可以判断腰以上和 Erb 氏点以上的近体段运动神经传导速度(MNCV)。在踝与膝或腕与肘用表面电极超强刺激腓深神 F-wave is a late-onset muscle reaction recorded in the hands, feet, and muscles when super nerves are stimulated, as a result of retrograde activation of motor neurons. Determination of F wave can be judged above the waist and Erb point above the proximal motor nerve conduction velocity (MNCV). Superficial stimulation of the deep perianal nerve at the ankle and knee or wrist and elbow electrodes