Analysis of myoelectric signals recorded during dynamic contractions - A time-frequency approach to assessing muscle fatigue

被引:95
作者
Bonato, P [1 ]
Gagliati, G [1 ]
Knaflitz, M [1 ]
机构
[1] POLITECN TORINO, DIPARTIMENTO ELETTRON, I-10129 TURIN, ITALY
来源
IEEE ENGINEERING IN MEDICINE AND BIOLOGY MAGAZINE | 1996年 / 15卷 / 06期
关键词
D O I
10.1109/51.544517
中图分类号
R318 [生物医学工程];
学科分类号
0831 ;
摘要
The various theoretical considerations that justify the choice of specific time-frequency transforms for processing nonstationary myoelectric signals as a method of studying muscle fatigue prior to the failure point are presented. Five different time-frequency transforms were applied, namely, the Wigner-Ville, the smoothed Wigner-Ville, the Cone kernel, the reduced interference, and the Choi-Williams. Preliminary results obtained by applying these techniques to computer-synthesized realizations of stochastic processes, as well as to real signals detected during different types of healthy human volunteers are presented.
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页码:102 / 111
页数:10
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