Kiko Yu, Uchitomi Hirotaka, Matsubara Masaaki, Miyake Yoshihiro
Department of Rehabilitation, Tamagawa Hospital, Tokyo 158-0095, Japan.
Department of Computer Science, Institute of Science Tokyo, Yokohama 226-8503, Japan.
Healthcare (Basel). 2025 Mar 17;13(6):654. doi: 10.3390/healthcare13060654.
BACKGROUND/OBJECTIVES: Osteoarthritis of the hip (hip OA) may increase the risk of falls. To decrease fall risk, it is important to assess the gait characteristics of patients with hip OA in detail. This study aimed to investigate the gait characteristics of patients with hip OA caused by falls by simultaneously assessing foot and waist trajectories via an inertial measurement unit (IMU).
The subjects were 77 patients with hip OA, 17 of whom had fallen in the past year. The physical function, gait parameters, and waist trajectories of the fall and nonfall groups were compared.
Compared with the nonfall group, the fall group was older and had higher fall scores and lower Japan Orthopaedic Association (JOA) hip scores. With respect to gait characteristics, the stride length on the nonaffected side was significantly shorter in the fall group than in the nonfall group. Stride velocity gait asymmetry was also significantly lower in the fall group than in the nonfall group. The amount of lifting of the waist on the affected and nonaffected sides was significantly lower in the falling group than in the nonfalling group.
It was suggested that the fall group might be adapting to stabilization and adjusting to a stable and safe gait pattern because of the effects of falls; new gait characteristics regarding falls in patients with hip OA were found.
背景/目的：髋关节骨关节炎（髋骨关节炎）可能会增加跌倒风险。为降低跌倒风险，详细评估髋骨关节炎患者的步态特征非常重要。本研究旨在通过惯性测量单元（IMU）同时评估足部和腰部轨迹，调查因跌倒导致髋骨关节炎患者的步态特征。
研究对象为77例髋骨关节炎患者，其中17例在过去一年中曾跌倒。比较跌倒组和未跌倒组的身体功能、步态参数和腰部轨迹。
与未跌倒组相比，跌倒组年龄更大，跌倒评分更高，日本骨科协会（JOA）髋关节评分更低。在步态特征方面，跌倒组患侧的步幅明显短于未跌倒组。跌倒组的步速步态不对称性也明显低于未跌倒组。跌倒组患侧和未患侧的腰部抬起幅度明显低于未跌倒组。
提示跌倒组可能由于跌倒的影响而在适应稳定并调整为稳定安全的步态模式；发现了髋骨关节炎患者跌倒的新步态特征。
