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Effects of repeated vibration exposures in muscle tissue.

Authors
Wirth-O; Waugh-S; Johnson-C; Miller-GR; Krajnak-KM
Source
Proceedings of the First American Conference on Human Vibration, June 5-7, 2006, Morgantown, West Virginia. Dong R, Krajnak K, Wirth O, Wu J, eds., Morgantown, WV: National Institute for Occupational Safety and Health, 2006 Jun; :156-157
NIOSHTIC No.
20030975
Abstract
Workers exposed to vibrating hand tools are at risk of developing symptoms such as cold-induced vasospasms, loss of tactile sensitivity, and loss of grip strength in the fingers and hands. These symptoms are known collectively as vibration white finger (VWF) or hand-arm vibration syndrome (HAVS). Symptoms of VWF or HAVS are in part due to repeated and prolonged peripheral vasoconstriction. The reduction in blood flow that occurs with vasoconstriction can result in oxygen deprivation (hypoxia) in soft tissues, such as nerves and muscle, and lead to functional and structural changes in these tissues. The present study examined muscle tissue to determine if vibration-induced changes in transcript levels and protein concentrations result in enhanced vasoconstriction and hypoxia. Manual dexterity was also assessed intermittently to determine if vibration-induced changes in cellular factors are accompanied by performance deficits.
Keywords
Vibration-exposure; Vibration; Power-tools; Ergonomics; Hand-tools; Vibration-disease; Vibration-effects; Neurovascular-disorders
Publication Date
20060601
Document Type
Conference/Symposia Proceedings
Editors
Dong-R; Krajnak-K; Wirth-O; Wu-J
Fiscal Year
2006
NTIS Accession No.
NTIS Price
NIOSH Division
HELD
Priority Area
Disease and Injury: Musculoskeletal Disorders of the Upper Extremities
Source Name
Proceedings of the First American Conference on Human Vibration, June 5-7, 2006
State
WV
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