Methods 48 patients with MND, 24 patients with cervical spondylotic myelopathy (CSM) and 42 normal volunteers were investigated by SFEMG.

• 方法应用单纤维肌电图技术对48例运动神经元病（MND）患者，24例颈椎性脊髓病（CSM）患者及42名健康正常受试者进行研究。