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首页> 外文期刊>Journal of Biomechanics >Associations among knee adduction moment, frontal plane ground reaction force, and lever arm during walking in patients with knee osteoarthritis.
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Associations among knee adduction moment, frontal plane ground reaction force, and lever arm during walking in patients with knee osteoarthritis.

机译：膝关节骨关节炎患者行走过程中膝关节内收力矩，额平面地面反作用力和杠杆臂之间的关联。

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The adduction moment about the knee during walking gait has been proposed as an indirect measure of dynamic knee joint load. However, the relative contributions of the variables primarily used to calculate the knee adduction moment have not been investigated. The objectives of this paper were to: (1) describe and compare the magnitude and temporal characteristics of the knee adduction moment, frontal plane lever arm, and frontal plane ground reaction force (GRF) during gait in patients with knee osteoarthritis (OA) and, (2) examine the associations among these variables. Results indicated that both the knee adduction moment and the frontal plane GRF varied considerably throughout stance and exhibited the characteristic "double-hump" pattern, while the frontal plane lever arm magnitude varied only slightly during stance. Knees with OA had significantly greater peak knee adduction moments and frontal plane lever arms, but significantly less peak frontal plane GRF than knees without OA. Pearson product moment correlations indicated a higher association between peak knee adduction moment and peak frontal plane lever arm than between peak knee adduction moment and peak frontal plane GRF, particularly in knees with OA. These results suggest that the frontal plane lever arm assessed during walking is an important variable in the examination of knee OA, and warrants further investigation.
机译：步行步态中膝盖的内收力矩已被提出作为动态膝关节负荷的间接量度。但是，尚未研究主要用于计算膝盖内收力矩的变量的相对贡献。本文的目的是：（1）描述和比较膝骨关节炎（OA）患者步态中膝关节内收力矩，额叶面杠杆臂和额叶面地面反作用力（GRF）的大小和时间特征。 ，（2）检查这些变量之间的关联。结果表明，在整个姿势中，膝盖的内收力矩和额平面GRF都发生了很大的变化，并表现出特征性的“双驼峰”模式，而在姿势中，额平面杠杆臂的大小仅略有变化。与没有OA的膝相比，有OA的膝的峰值膝关节内收力矩和额叶顶杠杆臂明显更大，但与额叶顶峰GRF相比，峰值明显少。皮尔逊乘积力矩相关性表明，在最大内收力矩和最大额额平面杠杆臂之间的峰值膝关节内收力矩比在最大膝盖内收力矩和最大额额平面GRF之间的关联更高，尤其是在患有OA的膝盖中。这些结果表明，在步行过程中评估的额平面杠杆臂是检查膝骨关节炎的重要变量，值得进一步研究。

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