Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)
- Volume 1991 Issue 11
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- Pages.103-106
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- 1991
EFFECT OF VIBRATION ON LUMBAR SPINE MECHANICS
유한요소법을 이용한 진동요소의 요추에 미치는 영향해석
- Park, Ho-Sang (Department of Mechanical Engineering Pohang Institute of Science & Technology)
- 박호상 (포항공과대학 기계공학과)
- Published : 1991.11.15
Abstract
A three-dimensional finite element model of a ligamentous two motion segments (L4-S1) was developed to investigate its dynamic response. A number of parameters like the intradiscal pressure, forces in ligaments. and across facet joints in response to a sinusoidal axial compression force (-360 N to -440 N at 5 Hz) were predicted. The increase in the parameters varied from 12% to as high as 50% in comparison to response for a static load of 400 N. The predicted parameters also revealed a distortion and a phase shift in comparison to the applied sinusoidal signal. These changes may lead to degenerative changes seen clinically in persons exposed to a chronic vibration environment over time.
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