崔丽英 汤晓芙 周瑞玲 李本红 杜华 100730 中国医学科学院 中国协和医科大学 北京协和医院神经科(崔丽英、汤晓芙、李本红、杜华)；福建省立医院神经科(周瑞玲) 中华神经科杂志 1999 0 32 1


    关键词：肌电描记术；肌纤维；年龄因素 期刊 zhsjkzz 0 论著 fur -->


    

【摘要】 目的 研究68名正常人单纤维肌电图颤抖(jitter)和纤维密度(FD)的正常值。 方法 用特殊的单纤维针电极测定上肢的伸指总肌和下肢的胫前肌的jitter和FD。结果 Jitter与年龄有明显的相关性，随着年龄增长，jitter增宽，而与性别无明显的相关性；FD亦与年龄有关。结论 该方法为检测神经肌肉接头处的功能和肌纤维再生情况的客观指标。

    Single fiber electromyography in normal human subjects CUI Liying^* ,TANG Xiaofu, ZHOU Ruiling, et al. *Department of Neurology, Peking Union Medical CollegeHospital, Chinese Academy of Medical Sciences, Beijing 100730

    【Abstract】 Objective Single fiber electromyography (SFEMG)was performed in 68 normal human subjects with different ages and genders. Methods Thesubjects were divided into four groups according to age. Jitters and fiber density (FD)were tested in muscular extensor digitorum communis and tibialis anterior. Results There was a remarkable correlation between the jitter and the age (P<0.001); The jitterwas increased with age. The FD was also significantly increased with age (P<0.001). Conclusion SFEMGcould serve as an objective and valuable method for testing the function of neuromuscularconjunctions and quantitating rearrangements of the muscle fibers in the motor units.

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