Three-Dimensional Dynamic Modeling of the Human Knee Joint

本研究的目的是建立一个人体膝关节的三维动态数学模型。以前的三维模型要么是静态的，要么是准静态的，因此，这些模型不能预测在许多运动活动中发生的动态惯性载荷的影响。到目前为止，只对二维动态模型进行了研究。将开发的模型将由两个身体部分组成，一个股骨和一个胫骨，受韧带力量的约束。关节位置，关节反作用力，股骨和胫骨接触点位置随时间发生的变化，韧带的力量将被计算出来。这项研究很重要，因为它将使我们更全面地了解膝关节损伤是如何发生的。膝关节的大部分损伤发生在动态情况下，这是本项目的重点。所开发的方法也可用于其他关节的建模。

The goal of this research is to develop a three-dimensional dynamic mathematical model of the human knee joint. Previous three-dimensional models either have been static or quasi-static and, therefore, the models cannot predict the effects of dynamic inertial loads which occur in many locomotor activities. Only two-dimensional dynamic models have been investigated to date. The model that will be developed will consist of two body segments, a femur and a tibia, constrained by ligamentous forces. Changes that occur with time in joint position, joint reaction forces, contact point locations between femur and tibia, and ligament forces will be calculated. This research is important since it will lead to a more complete knowledge of how knee injuries occur. Most damage to the knee takes place in dynamic situations, which is the focus of this project. The approach that will be develop also could be used in modeling other articulating joints.