NDLI: Localized fatigue effects on quiet standing control by fractional Brownian motion

Content Provider	IEEE Xplore Digital Library
Author	Mello, R.G.T. Oliveira, L.F. Nadal, J.
Copyright Year	2010
Description	Author affiliation: Biomechanics Laboratory, School of Physical Education and Sports, Federal University of Rio de Janeiro, Brazil (Oliveira, L.F.) \|\| Biomedical Engineering Program, COPPE, Federal University of Rio de Janeiro, P. O. Box 68.510, 21941-972, Brazil (Nadal, J.) \|\| Sport and Physical Education Department, Naval School, Brazilian Navy, Brazil (Mello, R.G.T.)
Abstract	In this work, the anterior-posterior displacement of the center of pressure was modeled as a fractional Brownian motion to analyze the effect of fatigue of plantar flexor muscles by isometric contraction. A sample of 17 young, healthy adults was evaluated by stabilometric test, 2 min before and after a plantar flexion, sustained until exhaustion. For each test, the model was applied to four consecutive periods of 30 s and then averaged to estimate the parameters. The fatigue increased the stochastic activity in both persistent and antipersistent controls, and also increased the Hurst exponent of the long-term mechanism. As a conclusion, the used model suggests that peripheral fatigue increases the body sway and reduces the gain of the antipersistent mechanism. However, these changes are detectable only when more than one 30 s data segment is considered for analysis.
Starting Page	2415
Ending Page	2418
File Size	292442
Page Count	4
File Format	PDF
ISBN	9781424441235
ISSN	1557170X
DOI	10.1109/IEMBS.2010.5626154
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-08-31
Publisher Place	Argentina
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fatigue Brownian motion Correlation Muscles Mathematical model Stochastic processes Force Fractional Brownian Motion Quiet Standing Control Localized Fatigue
Content Type	Text
Resource Type	Article
Subject	Signal Processing Biomedical Engineering Health Informatics Computer Vision and Pattern Recognition

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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