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Influence of fatigue time and level on increases in postural sway.

Authors
Pline-KM; Madigan-ML; Nussbaum-MA
Source
Ergonomics 2006 Dec; 49(15):1639-1648
NIOSHTIC No.
20031610
Abstract
The purpose of this study was to investigate the influence of fatigue time and fatigue level on the increases in postural sway during quiet standing. Centre of pressure-based measures of postural sway were collected both before and after fatiguing participants using three different fatigue levels and two different fatigue times. Results showed increasing fatigue time increased sway velocity and sway area, and increasing fatigue level increased sway velocity. Fatigue time effects are important to consider when applying laboratory-based findings to the field given that the fatigue time can differ substantially between the two. Fatigue level effects imply a dose - response relationship between localized muscle fatigue and risk of falling that can have important implications in work/rest cycle scheduling for occupations at risk of injurious falls.
Keywords
Fatigue; Muscles; Motion-studies; Posture; Injuries; Musculoskeletal-system; Muscle-function; Muscle-physiology; Muscles
Contact
Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Mail Code 0238, Blacksburg, VA 24061
CODEN
ERGOAX
Publication Date
20061215
Document Type
Journal Article
Funding Type
Grant
Fiscal Year
2007
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-007882
Issue of Publication
15
ISSN
0014-0139
Source Name
Ergonomics
State
VA
Performing Organization
Virginia Polytechnic Institute and State University
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