局部肌肉疲劳的无创监测  

NONINVASIVE MONITOR OF LOCALIZED MUSCULAR FATIGUE

作　　者：凌烽[1] 王公瑞[1] 卢晓[1] 李兵仓[1] 李曙光[1] 

机构地区：[1]第三军医大学野战外科研究所大坪医院,重庆大学生物工程研究院

出　　处：《医用生物力学》1996年第1期16-19,共4页Journal of Medical Biomechanics

摘　　要：通过表面肌电信号的功率谱中值频率（ｆ＿（ｍｅｄ））来监测局部肌肉疲劳，对人体的肱二头肌做了疲劳实验。在维持等长、恒力肌肉收缩时，ｆ＿（ｍｅｄ）曲线初始段下降率（即拟合直线斜率的绝对值）随肌肉疲劳程度的增加而增加，因此希望能用ｆ＿（ｍｅｄ）曲线初始段的下降率来定量判断局部肌肉疲劳的状态，以减少受试者的体力消耗和肌肉不适程度。监测的参数是从表面肌肉电信号经计算而获得，实现了监测过程的无创性。This study was designed to monitor localized muscular fatigue with the power spectrum medium frequency of surface myoelectric signal, and test the muscular fatigue of body bices. While sustaining constant force, isometric muscular contraction, the initial past decreasing rate of medium frequency curve, the absolute value of the fitting straight line slope, was increased with the degree of the muscular fatigue. With this rate, it was possible to quantitatively judge the state of the muscular fatigue, reduce the physical consumption and muscular uncomfort of recipients.Monitored parameters were acquized from surface myoelectric signal, reallzing the nonvasive in the monitoring process.

关 键 词：肌肉疲劳 中值频率 无创监测 生物医学 

分 类 号：R318.01[医药卫生—生物医学工程]