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Document ID (ISN)108908
CIS number 08-1420
ISSN - Serial title 0169-8141 - International Journal of Industrial Ergonomics
Year 2008
Convention or series no.
Author(s) Li L., Lamis F., Wilson S.E.
Title Whole-body vibration alters proprioception in the trunk
Bibliographic information Sep.-Oct. 2008, Vol.38, No.9-10, p.792-800. Illus. 40 ref.
Abstract The effect of whole-body vibration on proprioception and dynamic stability was examined in subjects exposed to 20min of vertical, seated vibration relative to controls exposed to the same seated posture without vibration exposure. Subjects were found to have a 1.58-fold increase in position-sense errors after vibration. To understand the potential effect of a sensory loss on dynamic low back stability, a parametric model of the trunk and neuromotor response was developed and tested in a second experiment where subjects exhibited both an 11.9% increase in trunk flexion and an 11.2% increase in time to peak paraspinal muscle response. These findings suggest that after vibration exposure, manual handling could lead to injury. Reducing vibration exposure or a break between exposure and manual materials handling could be used to reduce this risk.
Descriptors (primary) whole-body vibration; sitting posture; trunk injuries; manual handling; risk factors; sensory aptitude
Descriptors (secondary) muscle testing; vibration measurement; work posture; vibration transmission; lumbar column; limitation of exposure; case-control study; workbreaks
Document type D - Periodical articles
Country / State or ProvinceUSA
Subject(s) Ergonomics and work organization
Noise, hearing and vibration
Broad subject area(s) Physical hazards
Browse category(ies) Vibration
Work posture