Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Acute effects of localized muscle fatigue on postural control and patterns of recovery during upright stance: influence of fatigue location and age.

Authors
Lin-D; Nussbaum-MA; Seol-H; Singh-NB; Madigan-ML; Wojcik-LA
Source
Eur J Appl Physiol 2009 Jun; 106(3):425-434
NIOSHTIC No.
20039735
Abstract
The purposes of this study were to investigate the effects of fatigue location and age on changes in postural control induced by localized muscle fatigue, as well as the patterns of recovery post-fatigue. Groups of 16 younger (18-25 years) and 16 older (55-65 years) participants performed submaximal isotonic fatiguing exercises involving the unilateral ankle plantar flexors, knee extensors, and shoulder flexors, and bilateral lumbar extensors. Postural control was assessed during quiet upright stance, from center-of-pressure and center-of-mass time series obtained before and after the fatiguing exercises. Acute effects of fatigue differed between joints, with the most substantial effects evident at the lower back, followed by the ankle. Neither knee nor shoulder fatigue resulted in significant effects on postural control. Significant acute effects of fatigue were found only among the younger group. Recovery of postural control post-fatigue was influenced by age, being more rapid in the younger group, but not by fatigue location. Along with existing evidence, these results may facilitate the development of strategies to prevent occupational falls.
Keywords
Musculoskeletal-system; Muscle-function; Muscle-physiology; Muscles; Fatigue; Posture; Biomechanics; Body-mechanics; Age-factors; Age-groups; Physical-exercise; Physiological-factors; Physiological-fatigue; Body-regions; Biological-effects; Physiological-effects; Injury-prevention; Acute-exposure; Author Keywords: Balance; Postural control; Localized muscle fatigue; Aging; Falls; Recovery
Contact
M. A. Nussbaum, Department of Industrial and Systems Engineering, Virginia Tech, 250 Durham Hall (0118), Blacksburg, VA 24061, USA
CODEN
EJAPFN
Publication Date
20090601
Document Type
Journal Article
Email Address
nussbaum@vt.edu
Funding Type
Grant
Fiscal Year
2009
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-0078802
Issue of Publication
3
ISSN
1439-6319
Source Name
European Journal of Applied Physiology
State
VA; MI
Performing Organization
Virginia Polytechnic Institute and State University
TOP