Body weight-normalized quadriceps and gastrocnemius forces under different axial loads and joint angles

This study investigated the effect of changing limb angulation between an early and a mid-stance joint angle configuration, combined with either rigid femoral fixation or using a system that retained flexion/extension movement at the level of the proximal femur. Constructs were tested under axial loads of 10%, 20% and 30% of body weight axial loads.The quadriceps and gastrocnemius muscles were simulated with load cells and turnbuckles, and load cell outputs normalized to body weight. Data are provided for analysis using a repeated measures model.

本研究探讨了站立早期与站立中期关节角度构型下肢体成角变化的效应，该效应结合了两种固定方案：刚性股骨固定，或是保留股骨近端屈伸运动的固定系统。受试结构分别在相当于体重10%、20%、30%的轴向载荷条件下开展测试。本研究采用测力传感器与松紧螺旋扣模拟股四头肌与腓肠肌，并将测力传感器的输出值以体重为基准进行归一化处理。本研究提供了可采用重复测量模型开展分析的实验数据。