Clinical femoral anteversion (Craig test) and hip range of motion (ROM) have been associated with valgus collapse, but their clinical usefulness in predicting biomechanics is unknown. Our purpose was to determine the individual and combined predictive power of femoral anteversion and passive hip ROM on 3-dimensional valgus collapse (hip internal rotation and adduction, knee rotation, and abduction) during a single-leg forward landing in females. Femoral anteversion and passive hip ROM were measured on 20 females (24.9 [4.1] y, 168.7 [8.0] cm, 63.8 [11.6] kg). Three-dimensional kinematics and kinetics were collected over 5 trials of the task. Each variable was averaged across trials. Backward, stepwise regressions determined the extent to which our independent variables were associated with valgus collapse. The combination of greater hip internal and external rotation ROM (partial r = .52 and .56) predicted greater peak knee internal rotation moment (R2 = .38, P = .02). Less hip internal rotation ROM (partial r = -.44) predicted greater peak knee abduction moments (R2 = .20, P = .05). Greater total hip ROM (internal and external rotation ROM) was not consistently associated with combined motions of valgus collapse but was indicative of isolated knee moments. Passive hip ROM is more associated with knee moments than is femoral anteversion as measured with Craig test.

中文翻译：

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髋关节结构对女性单腿向前着陆时功能性外翻塌陷的影响。

临床股骨前倾（Craig 试验）和髋关节活动度（ROM）与外翻塌陷有关，但它们在预测生物力学方面的临床用途尚不清楚。我们的目的是确定女性单腿向前着陆期间股骨前倾和被动髋关节 ROM 对 3 维外翻塌陷（髋内旋和内收、膝关节旋转和外展）的单独和综合预测能力。测量了 20 名女性（24.9 [4.1] y，168.7 [8.0] cm，63.8 [11.6] kg）的股骨前倾和被动髋关节 ROM。在该任务的 5 次试验中收集了三维运动学和动力学。每个变量在试验中平均。向后的逐步回归确定了我们的自变量与外翻塌陷相关的程度。更大的髋关节内旋和外旋 ROM（部分 r = .52 和 0.56）的组合预测了更大的膝关节内旋峰值峰值（R2 = .38，P = .02）。较少的髋内旋 ROM（部分 r = -.44）预示着更大的峰值膝关节外展力矩（R2 = .20，P = .05）。更大的全髋关节 ROM（内旋和外旋 ROM）与外翻塌陷的联合运动不一致，但表明孤立的膝关节力矩。与 Craig 测试测量的股骨前倾相比，被动髋关节 ROM 与膝关节力矩的相关性更高。更大的全髋关节 ROM（内旋和外旋 ROM）与外翻塌陷的联合运动不一致，但表明孤立的膝关节力矩。与 Craig 测试测量的股骨前倾相比，被动髋关节 ROM 与膝关节力矩的相关性更高。更大的全髋关节 ROM（内旋和外旋 ROM）与外翻塌陷的联合运动不一致，但表明孤立的膝关节力矩。与 Craig 测试测量的股骨前倾相比，被动髋关节 ROM 与膝关节力矩的相关性更高。