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Controlling quadriceps forces based on predicted retro-patellar stresses in a three-dimensional dynamic model of the knee joint.

机译:在膝关节三维动态模型中,基于预测的-骨后应力控制股四头肌力量。

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摘要

In order to understand the dynamics of the knee joint it is necessary to build and study anatomically based computational models. There are relatively few three-dimensional dynamic models existing in the literature.; A computational model has been developed in this study to determine the effect of force distribution among the quadriceps muscle group on the patello-femoral contact pressures and to observe if the distribution could have been optimized for minimum stress. The model representing the anatomical characteristics (bone geometries, ligaments, tendons, muscle force orientations, inertial properties and contact parameters) of the knee joint has been studied for three different cases. Retro-patellar contact pressures, that are believed to be the primary cause of patello-femoral pain, were measured in the model using dynamic algorithms for a simulated squat task. The results demonstrating variation of generated contact pressures in each case suggests their close association with the quadriceps force distribution.
机译:为了了解膝关节的动力学,有必要建立和研究基于解剖学的计算模型。文献中存在相对较少的三维动力学模型。在本研究中开发了一种计算模型,以确定股四头肌群之间的力量分布对pat股-股骨接触压力的影响,并观察是否可以针对最小应力优化该分布。在三种不同情况下,研究了代表膝关节解剖特征(骨骼几何形状,韧带,肌腱,肌肉力方向,惯性特性和接触参数)的模型。在dynamic骨模型中,使用动态算法模拟a蹲任务,测量了measured骨后接触压力(据认为是contact骨股骨疼痛的主要原因)。每种情况下产生的接触压力变化的结果表明,它们与股四头肌力分布密切相关。

著录项

  • 作者

    Rayaprolu, Jyothi.;

  • 作者单位

    University of Missouri - Kansas City.;

  • 授予单位 University of Missouri - Kansas City.;
  • 学科 Engineering Biomedical.; Engineering Mechanical.
  • 学位 M.S.
  • 年度 2005
  • 页码 47 p.
  • 总页数 47
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 11:41:38

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