1950年Magladery 和McDougal 描述了在足肌记录的原始电位,故被称为F 波。用超强表面电刺激混合性周围神经,在手或足的小肌肉均可记录F波。急性脑损害后的脊髓休克阶段,发现F 波的发生率和平均振幅减低,反之在痉挛期,其发生率、平均振幅均增加,本文利用F 波参数的改变评价痉挛,并作为评价节段运动神经元兴奋性的可能方 1950’s Magladery and McDougal described the original potential recorded in the foot muscle, it is called the F wave. With super-surface electrical stimulation of mixed peripheral nerve, small muscles in the hands or feet can record F wave. Spinal cord shock after acute brain injury stage and found that the incidence of F wave and the average amplitude decreased, whereas in the spasm period, the incidence rate, the average amplitude are increased in this paper, the use of changes in F wave parameters to evaluate spasticity, and as part of the evaluation of exercise The possible side of neuronal excitability