NDLI: Effect of muscular fatigue on fractal upper limb coordination dynamics and muscle synergies

Content Provider	IEEE Xplore Digital Library
Author	Bueno, D.R. Lizano, J.M. Montano, L.
Copyright Year	2015
Description	Author affiliation: Aragon Inst. of Eng. Res. (I3A), Univ. of Zaragoza, Zaragoza, Spain (Bueno, D.R.; Montano, L.) \|\| Univ. of Zaragoza, Zaragoza, Spain (Lizano, J.M.)
Abstract	Rehabilitation exercises cause fatigue because tasks are repetitive. Therefore, inevitable human motion performance changes occur during the therapy. Although traditionally fatigue is considered an event that occurs in the musculoskeletal level, this paper studies whether fatigue can be regarded as context that influences lower-dimensional motor control organization and coordination at neural level. Non Negative Factorization Matrix (NNFM) and Detrended Fluctuations Analysis (DFA) are the tools used to analyze the changes in the coordination of motor function when someone is affected by fatigue. The study establishes that synergies remain fairly stable with the onset of fatigue, but the fatigue affects the dynamical coordination understood as a cognitive process. These results have been validated with 9 healthy subjects for three representative exercises for upper limb: biceps, triceps and deltoid.
Starting Page	6082
Ending Page	6085
File Size	1275536
Page Count	4
File Format	PDF
ISSN	1557170X
e-ISBN	9781424492718
DOI	10.1109/EMBC.2015.7319779
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-08-25
Publisher Place	Italy
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fatigue Muscles Electromyography Fractals Fluctuations Indexes Dynamics
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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