Toda Haruki, Maruyama Tsubasa, Fujita Koji, Yamauchi Yuki, Tada Mitsunori
Digital Human Research Team, Artificial Intelligence Research Center, National Institute of Advanced Industrial Science and Technology, Tokyo 135-0064, Japan.
Department of Functional Joint Anatomy, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo 113-8519, Japan.
Healthcare (Basel). 2021 Sep 30;9(10):1308. doi: 10.3390/healthcare9101308.
Individuals with knee osteoarthritis are restricted in their daily activity because of walking difficulty. The purpose of this investigation was to examine the association between self-reported walking difficulty and knee flexion excursion during gait in Japanese patients with knee osteoarthritis.
Twenty-eight patients with knee osteoarthritis participated in this study. Knee flexion excursions in loading response and swing during gait were measured through an inertial measurement unit-based motion capture system. The walking difficulty was assessed by a subitem in the Japanese Knee Osteoarthritis Measure. Pain intensity was assessed by a visual analog scale. Characteristics and gait variables were compared between groups that were determined a priori using the results of the walking difficulty assessment. The relationship between knee flexion excursion during gait and walking difficulty were analyzed using logistic regression.
The participants with walking difficulty had significantly small knee flexion excursion in both loading response and swing with large pain. After controlling the effect of pain, only knee flexion excursion in the swing was significantly related to the walking difficulty.
This study suggested that the knee flexion excursion in swing during gait is helpful for understanding the walking difficulty experienced in Japanese patients with knee osteoarthritis.
膝骨关节炎患者因行走困难而限制了日常活动。本研究的目的是探讨日本膝骨关节炎患者自我报告的行走困难与步态期间膝关节屈曲偏移之间的关联。
28例膝骨关节炎患者参与了本研究。通过基于惯性测量单元的运动捕捉系统测量步态期间负重反应和摆动期的膝关节屈曲偏移。行走困难通过日本膝骨关节炎测量量表中的一个子项目进行评估。疼痛强度通过视觉模拟量表进行评估。根据行走困难评估结果预先确定分组，比较各组之间的特征和步态变量。使用逻辑回归分析步态期间膝关节屈曲偏移与行走困难之间的关系。
有行走困难的参与者在负重反应和摆动期的膝关节屈曲偏移明显较小，且疼痛程度较大。在控制疼痛影响后，仅摆动期的膝关节屈曲偏移与行走困难显著相关。
本研究表明，步态摆动期的膝关节屈曲偏移有助于理解日本膝骨关节炎患者所经历的行走困难。
