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表述人体下肢生物动力模型的数值技术、数值结果并将其与文献进行比较．模型显示：当人体下肢小腿受冲击外载荷作用时，在膝关节处所产生的４个主要韧带张力以及膝关节处的咬合接触力，在大腿固定不动（或运动受到约束）的情况下，要远大于大腿未受约束的情形．这与医学常识是吻合的．
The numerical technique of expressing the lower body biomechanical model of human body, the numerical result is compared with the literature. The model shows that when the lower leg of the human body is subjected to an impact external load, the four main ligaments generated at the knee joint and the contact force at the knee joints are immobilized (or restrained) at the thighs Much greater than the uncontrolled thighs. This is consistent with medical knowledge.