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The biomechanics of vibration and low back pain.

Authors
Wilder-DG
Source
Am J Ind Med 1993 Apr; 23(4):577-588
NIOSHTIC No.
00213824
Abstract
The mechanical factors related to low back pain produced in an environment of vibration are reviewed. An apparatus was developed and tested for measuring the main and coupled motion, compliance, and viscoelastic response of a spinal motion segment to pure axial compression loading applied at or away from the subjects' balance point. The equipment allows one to test the effects of complex load environments or structural alterations of the motion segment. Sitting causes an extreme orientation for the lumbar intervertebral disc, increasing the internal pressure and the anteroposterior shear flexibility while decreasing the resistance to buckling instability and stressing the posterior region of the disc. The application of vibration to an already seated subject serves as an additional mechanical stressor. Several studies have indicated the need for preventive measures to be taken to minimize the vibration reaching the driver of a vehicle, to warn drivers not to attempt to lift or bend immediately following a driving period, and to encourage them to walk around for several minutes following a period of driving.
Keywords
NIOSH-Publication; NIOSH-Grant; Musculoskeletal-system-disorders; Truck-drivers; Bus-drivers; Vibration-disease; Back-injuries; Skeletal-system; Posture; Epidemiology; Occupational-hazards; Motor-vehicles
Contact
Orthopaedic Surgery University of Vermont Dept of Orthopaedic Surgery Burlington, VT 05401
CODEN
AJIMD8
Publication Date
19930401
Document Type
Journal Article
Funding Amount
673379
Funding Type
Grant
Fiscal Year
1993
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-00745
Issue of Publication
4
ISSN
0271-3586
Priority Area
Musculoskeletal-system-disorders
Source Name
American Journal of Industrial Medicine
State
VT
Performing Organization
University of Vermont & St Agric College, Burlington, Vermont
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