Kim S, Pandy M G
University of Texas, Austin 78712.
Biomed Sci Instrum. 1993;29:33-46.
A two-dimensional dynamic model of the knee joint was incorporated into a four-segment, eight-muscle model of the human body to determine the muscle, ligament, and articular contact forces transmitted at the knee as humans stand up from a static squatting position. Our optimal control model predicted peak tibiofemoral contact forces as high as 8 times body weight. Furthermore, ligament forces, especially those in the anterior-cruciate, were nearly body weight as knee flexion approached 90 degrees. Ligament and tibiofemoral contact loads were dominated by the forces exerted by muscles during the movement.
膝关节的二维动态模型被纳入人体的四段、八肌肉模型中，以确定当人从静态蹲姿站立起来时，膝关节所传递的肌肉、韧带和关节接触力。我们的最优控制模型预测，胫股关节的峰值接触力高达体重的8倍。此外，当膝关节屈曲接近90度时，韧带力，尤其是前交叉韧带的力，接近体重。在运动过程中，韧带和胫股关节的接触负荷主要由肌肉施加的力主导。
