Strategies to identify changes in SEMG due to muscle fatigue during cycling

Singh, V, Kumar, D, Polus, B and Fraser, S 2007, 'Strategies to identify changes in SEMG due to muscle fatigue during cycling', Journal of Medical Engeneering and Technology, vol. 31, no. 2, pp. 144-151.

Document type: Journal Article
Collection: Journal Articles

Title Strategies to identify changes in SEMG due to muscle fatigue during cycling
Author(s) Singh, V
Kumar, D
Polus, B
Fraser, S
Year 2007
Journal name Journal of Medical Engeneering and Technology
Volume number 31
Issue number 2
Start page 144
End page 151
Total pages 8
Publisher Taylor and Francis
Abstract Detection, quantification and analysis of muscle fatigue are crucial in occupational/rehabilitation and sporting settings. Sports organizations such as the Australian Institute of Sports (AIS) currently monitor fatigue by a battery of tests including invasive techniques that require taking blood samples and/or muscle biopsies, the latter of which is highly invasive, painful, time consuming and expensive. SEMG is non-invasive monitoring of muscle activation and is an indication of localized muscle fatigue based on the observed shift of the power spectral density of the SEMG. But the success of SEMG based techniques is currently limited to isometric contraction and is not acceptable to the human movement community. This paper proposes and tests the use of spectral analysis of narrow windows of SEMG near the peak of a cyclic activity to identify the onset of muscle fatigue during cyclic activities. The results demonstrate a highly significant relationship of reduction of the median frequency with the onset of muscle fatigue. The paper also reports the validation of the SEMG study using biochemical analysis of muscle biopsy and blood tests and further verified using power output of the cycle and speed of pedalling.
Keyword(s) Electromyography
DOI - identifier 10.1080/03091900500444281
ISSN 1464-522X
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