Collins J J
Department of Engineering Science, University of Oxford, UK.
Med Biol Eng Comput. 1994 Mar;32(2):168-74. doi: 10.1007/BF02518914.
A sagittal-plane model of the knee, which takes account of the movements of the flexion axis relative to the femur and tibia and considers the possibility of antagonistic and synergistic muscle action, is used to determine the values of the forces transmitted by the muscles, cruciate ligaments and intra-articular surfaces during the clean phase of the clean-and-jerk weightlift. The theoretical analyses demonstrate that it is geometrically and mechanically possible for the knee musculature to unload and thereby protect the cruciate ligaments throughout a substantial portion of the lift. The price to be paid for this protection, in the case of the co-contraction of antagonistic muscles, is larger muscle and tibio-fermoral contact forces. The application of synergistic muscle action, however, results in smaller individual muscle and intra-articular contact forces.
一种膝关节矢状面模型，该模型考虑了屈曲轴相对于股骨和胫骨的运动，并考虑了拮抗肌和协同肌作用的可能性，用于确定在挺举举重的提铃阶段肌肉、交叉韧带和关节内表面所传递力的值。理论分析表明，在举重的大部分过程中，膝关节肌肉组织卸载从而保护交叉韧带在几何和力学上是可能的。在拮抗肌共同收缩的情况下，这种保护所要付出的代价是更大的肌肉和胫股接触力。然而，协同肌作用的应用会导致较小的单个肌肉和关节内接触力。
