Title :
Simultaneous measurement of force and muscle fatigue using frequency-band wavelet analysis
Author :
Soo, Yewguan ; Sugi, Masao ; Yokoi, Hiroshi ; Arai, Tamio ; Du, Rulin ; Ota, Jun
Author_Institution :
Department of Precision Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113-8656 Japan
Abstract :
Static and dynamic handgrip experiments are performed in order to evaluate the effectiveness of utilizing frequency-band wavelet analysis in measuring force and muscle fatigue simultaneously. SEMG signals are recorded from flexor muscle and analyzed using continuous wavelet transform (CWT). The wavelet coefficients are grouped into high frequency (65Hz – 350Hz) and low frequency (5Hz – 45Hz) band. A significant correlation is discovered between amplitude of high frequency band and force level. On the other hand, the amplitude of low frequency band is associated with muscle fatigue. These results have an important implication for estimating force and muscle fatigue simultaneously especially during dynamic contraction.
Keywords :
Continuous wavelet transforms; Fatigue; Force measurement; Frequency measurement; Muscles; Performance analysis; Performance evaluation; Signal analysis; Wavelet analysis; Wavelet transforms; Adult; Algorithms; Diagnosis, Computer-Assisted; Electromyography; Hand Strength; Humans; Male; Muscle Contraction; Muscle Fatigue; Muscle, Skeletal; Reproducibility of Results; Sensitivity and Specificity; Signal Processing, Computer-Assisted; Stress, Mechanical;
Conference_Titel :
Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE
Conference_Location :
Vancouver, BC
Print_ISBN :
978-1-4244-1814-5
Electronic_ISBN :
1557-170X
DOI :
10.1109/IEMBS.2008.4650347
