𝔖 Bobbio Scriptorium
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POSSIBLE MECHANISMS OF LOW BACK PAIN DUE TO WHOLE-BODY VIBRATION

✍ Scribed by M.H. Pope; D.G. Wilder; M. Magnusson

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
199 KB
Volume
215
Category
Article
ISSN
0022-460X

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✦ Synopsis

The investigators describe their multifaceted approach to the study of the relationship between whole-body vibration and low back pain. In vivo experiments, using percutaneous pin-mounted accelerometers have shown that the natural frequency is at 4β€’5 Hz. The frequency response was affected by posture, seating, and seat-back inclination. The response appears to be largely determined by the rocking of the pelvis. Electromyographic studies have shown that muscle fatigue occurs under whole body vibration. After whole body vibration exposure the muscle response to a sudden load has greater latency. Vehicle driving may be a reason for low back pain or herniated nucleus pulposus. Prolonged seating exposure, coupled with the whole body vibration should be reduced for those recovering from these problems. Vibration attenuating seats, and correct ergonomic layout of the cabs may reduce the risks of recurrence.

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