| 拮抗肌对的SEMG频率参数再研究 |
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| 引用本文： | 周炳和,章劲松.拮抗肌对的SEMG频率参数再研究[J].中国科学技术大学学报,1993,23(2):127-135. |
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| 作者姓名： | 周炳和 章劲松 |
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| 作者单位： | 中国科学技术大学电子技术部
(周炳和，章劲松，刘年宝，刘萍，卢蓉，倪小敏)，中国科学技术大学电子技术部(杨洪宁) |
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| 基金项目： | 国家教委“优秀年轻教师基金 |
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| 摘 要： | 用ARMA模型研究了正常人体肘关节主动肌和拮抗肌表面肌电信号(SEMG)的模型参数、功率谱中的峰值频率F_m和对应于发放率的突起峰F_p,它们与以前研究得到的中值频率具有类似的变化趋势:重复收缩时SEMG信号的归一化中值频率NMF的初始值随重复次数的增加而下降,而NMF的下降速度随重复次数的增加而增加。
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| 关 键 词： | 表面肌电信号 主动肌和拮抗肌 ARMA模型 重复收缩 |
Further Study on SEMG Frequency Parameters of Antagonist Pair |
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| Zhou Binghe Zhang Jinsong Liu Nianbao Liu Ping Lu Rong Ni Xiaomin Yang Hongning.Further Study on SEMG Frequency Parameters of Antagonist Pair[J].Journal of University of Science and Technology of China,1993,23(2):127-135. |
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| Authors: | Zhou Binghe Zhang Jinsong Liu Nianbao Liu Ping Lu Rong Ni Xiaomin Yang Hongning |
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| Institution: | Department of Electronic Engineering |
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| Abstract: | By ARMA model analysing, the model parameters of the SEMG patterns recorded from the agonist and antagonist (antagonist pair) of normal subjects' elbow joint, the Mode Frequency F_m and the peak frequency (F_p) in the power density spectrum corresponding to the average firing rate of recruited motor units are investigated. Comparison with the Median Frequency (MF) obtained in our previous study during sustained contraction shows that the intercept values of the SEMG's NMF (normalized MF) decrease while the slope values of NMF increase with the number of contractions during repeated contraction. |
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| Keywords: | surface electromyogram agonist and an tagonist ARMA Model repeated contraction |
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