The relationship between changes in amplitude and instantaneous mean frequency at low and high frequency bands during dynamic contraction
Surface Electromyography (SEMG) analysis of dynamic contraction is becoming more important to understand the muscle condition in real life activities. The objective of the study is to discover the relationship between the changes of amplitude and frequency at high and low frequency bands. Continuous Wavelet Transform (CWT) is utilized in order to process the SEMG data in both time and frequency domain. The result shows the potential to estimate the force level by analyzing the amplitude of high frequency band. However the influence of muscle fatigue and force variation should be identified during dynamic contraction. The proposed method provides an alternative solution for analyzing SEMG signals in different perspective.
component electromyography continuous wavelet transform dynamic contraction time-frequency analysis
Yewguan SOO Masao SUGI Hiroshi YOKOI Tamio ARAI Tatsuhiro NAKAMURA Rulin DU Jun OTA
The University of Tokyo, Japan
国际会议
上海
英文
1413-1416
2008-05-16（万方平台首次上网日期，不代表论文的发表时间）