Document Detail


Surface myoelectric signals during ergocycle exrcises at various mechanical powers and pedalling rates.
MedLine Citation:
PMID:  20719617     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The surface myoelectric (ME) signal from the vastus lateralis muscle was studied during ergocycling at various mechanical powers (MPs) and pedalling rates (PRs). The envelope of the signal was described using a power spectral density function estimate at very low frequency. A highly smoothed burst pattern was found independently at 80 rpm on MP. The envelope presence in surface ME signals was demonstrated to affect the total band power spectrum estimate slightly. In addition, the total band power spectrum changes with MPs and PRs were described using the root mean square value and the mean power frequency. Total band power spectrum was enhanced and shifted toward the low frequencies as PR increased. It was shifted toward the high frequencies as MP increased. These changes were attributed to the progressive recruitment of fast fibers.
Authors:
J N Helal; J Van Hoecke; C Garapon-Bar; F Goubel
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology     Volume:  2     ISSN:  1050-6411     ISO Abbreviation:  J Electromyogr Kinesiol     Publication Date:  1992  
Date Detail:
Created Date:  2010-08-19     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9109125     Medline TA:  J Electromyogr Kinesiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  242-51     Citation Subset:  -    
Copyright Information:
Copyright © 1993. Published by Elsevier Ltd.
Affiliation:
Laboratoire de Biomécanique et de Physiologie, Institut National du Sport et de l'Education Physique, Paris France; Département de Génie Biologique, UA CNRS 858, Université de Technologie, Compiègne, France.
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