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

fYear

2008

fDate

20-25 Aug. 2008

Firstpage

5045

Lastpage

5048

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2008. EMBS 2008. 30th Annual International Conference of the IEEE

Conference_Location

Vancouver, BC

ISSN

1557-170X

Print_ISBN

978-1-4244-1814-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2008.4650347

Filename

4650347