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首页> 外文期刊>Journal of Biomechanics >THE ROLE OF INTRA-ABDOMINAL PRESSURE IN SPINAL UNLOADING
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THE ROLE OF INTRA-ABDOMINAL PRESSURE IN SPINAL UNLOADING

机译：腹内压在脊髓卸载中的作用

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摘要

Previous studies on how an increase in intra-abdominal pressure (IAP) effects the loading of the lumbar spine during back extension show diverging results. From a critical review of the literature we deduce a simplified, but consistent, model of the mechanisms involved in IAP-induced unloading of the lumbar spine. The model is then expanded by explicitly incorporating equilibrium equations for the pressurised abdomen and the abdominal wall. It is shown that the unloading effect of IAP can be viewed as that of a pressurised column of fixed cross-sectional area, between the rib cage and pelvis. Different abdominal forms are examined and a form with zero longitudinal curvature is found to have some important mechanical benefits for the generation of IAP-induced alleviation of compressive loading of the lumbar spine. (C) 1997 Elsevier Science Ltd. All rights reserved. [References: 12]
机译：先前关于腹内压升高（IAP）如何影响背部伸展过程中腰椎负荷的研究显示出不同的结果。通过对文献的严格审查，我们得出了IAP引起的腰椎卸载的机制的简化但一致的模型。然后通过显式合并加压腹部和腹壁的平衡方程来扩展模型。结果表明，IAP的卸载作用可以看作是肋骨笼和骨盆之间固定横截面积的加压柱的卸载作用。检查了不同的腹部形态，发现纵向曲率为零的形态对产生IAP引起的腰椎压缩负荷减轻具有重要的机械益处。 （C）1997 Elsevier ScienceLtd。保留所有权利。 [参考：12]

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