Ipavec M, Iglic A, Iglic V K, Srakar F
Department of Orthopaedic Surgery, Medical Faculty, University of Ljubljana, Slovenia.
Pflugers Arch. 1996;431(6 Suppl 2):R275-6. doi: 10.1007/BF02346375.
The magnitude and the direction of the resultant hip joint force are different in different body positions during gait. Therefore the stress distribution in the hip joint articular surface also changes. The aim of this work is to study how the stress distribution changes if the magnitude and the direction of the hip joint force is changed during gait. For this purpose a three-dimensional mathematical model is developed. We calculated the values of the peak stress and the location of the pole on the articular surface (where the stress is maximal) in the successive phases of the walking cycle. The values of the peak stress range from 0.8 MPa in the one limb stance phase to 2.6 MPa in the heel strike phase.
在步态过程中，髋关节合力的大小和方向在不同身体姿势下是不同的。因此，髋关节关节面的应力分布也会发生变化。这项工作的目的是研究在步态过程中，当髋关节力的大小和方向发生变化时，应力分布是如何改变的。为此，建立了一个三维数学模型。我们计算了步行周期连续阶段关节面上的峰值应力值和极点位置（应力最大处）。峰值应力值范围从单腿支撑阶段的0.8兆帕到足跟撞击阶段的2.6兆帕。
