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

Factors involved in strain-induced injury in skeletal muscles and outcomes of prolonged exposures.

Authors
Stauber-WT
Source
J Electromyogr Kinesiol 2004 Feb; 14(1):61-70
NIOSHTIC No.
20029542
Abstract
Repetitive motion disorders can involve lengthening of skeletal muscles to perform braking actions to decelerate limbs under load often resulting in muscle strains and injury. Injury is a loss of isometric force (weakness) requiring days to recover. The capacity of skeletal muscle to tolerate repeated strains is dependent on multiple factors including individual variation. The most important factors producing muscle strain injury are the magnitude of the resisting force (peak-stretch force) and the number of strains. Other factors such as muscle length and fiber type contribute to the susceptibility to injury as well, but to a lesser degree. Strain injury can also lead to inflammation and pain. Chronic exposure to repeated strains can result in fibrosis that is not completely reversed after months of rest. Long rest times appear to be the only factor reported to prevent inflammation in rats following repeated strain injury. Further understanding of the mechanism for prevention of histopathologic changes by long rest times should provide a rationale for prevention of negative outcomes.
Keywords
Muscles; Musculoskeletal-system; Skeletal-system; Injuries; Muscle-tissue; Exposure-levels; Repetitive-work; Motion-studies; Injury-prevention; Rest-periods
Contact
Department of Physiology and Pharmacology, West Virginia University, School of Medicine, Robert C. Byrd Health Sciences Center, PO Box 9229, Morgantown, WV 26506-9229, USA
CODEN
JEKIE3
Publication Date
20040201
Document Type
Journal Article
Email Address
wstauber@hsc.wvu.edu
Funding Amount
868663
Funding Type
Grant
Fiscal Year
2004
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-002918
Issue of Publication
1
ISSN
1050-6411
Priority Area
Disease and Injury: Musculoskeletal Disorders of the Upper Extremities
Source Name
Journal of Electromyography and Kinesiology
State
WV
Performing Organization
West Virginia University, Morgantown, West Virginia
TOP