The primary objective of this study was to clarify whether balance evaluation during walking in elderly people was related to fall risk assessment; the second objective was to clarify the difference in balance strategy between young and elderly people based on the balance evaluation through a gait cycle. Thirty healthy young adults and 25 healthy elderly adults participated. All participants performed walking at their preferred speed and at a fast speed. Based on the margin of stability (MoS), balance during a gait cycle was divided into medial/lateral and anterior/posterior direction (ML/AP-MoS). Positive/negative integral values of ML-MoS were defined as ML-MoSPOS/ML-MoSNEG, and the average of AP-MoS over the gait cycle was defined as AP-MoSmean. The fast/preferred ratio of AP-MoSmean/ML-MoSPOS (AP-MoSmean (Fast/Preferred)/ML-MoSPOS (Fast/Preferred)) and the fast-preferred difference of ML-MoSNEG (ML-MoSNEG (Fast-Preferred)) were compared between groups. ML/AP-MoS at the preferred/fast gait was also compared between 12 gait events and groups. The Japanese version of the Mini-Balance Evaluation Systems Test (J-Mini-BESTest), the Japanese version of the Activities-specific Balance Confidence Scale (J-ABC scale), and the number of falls in the past year were obtained from all subjects. ML-MoSPOS (Fast/Preferred), ML-MoSNEG (Fast-Preferred), and AP-MoSmean (Fast/Preferred) were significantly correlated with J-Mini-BESTest. Gait balance evaluation based on MoS may reflect an individual's balance function. In fast gait, ML-MoS at foot flat and toe off and AP-MoS at just before heel strike were highly likely to be gait events to identify elderly adults with balance disorders.

中文翻译：

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老年人走路时的平衡策略是否与跌倒风险评估相关？

这项研究的主要目的是弄清老年人行走过程中的平衡评估是否与跌倒风险评估有关。第二个目标是根据步态周期的平衡评估来弄清年轻人和老年人之间平衡策略的差异。30名健康的年轻人和25名健康的老年人参加了比赛。所有参与者都以自己喜欢的速度和更快的速度行走。根据稳定性裕度（MoS），将步态周期中的平衡分为内侧/外侧和前/后方向（ML / AP-MoS）。ML-MoS的正/负积分值定义为ML-MoSPOS / ML-MoSNEG，步态周期中AP-MoS的平均值定义为AP-MoSmean。AP-MoSmean / ML-MoSPOS的快速/首选比率（AP-MoSmean（快速/首选）/ ML-MoSPOS（快速/首选））和ML-MoSNEG的快速首选差异（ML-MoSNEG（快速首选） ））在各组之间进行了比较。还比较了12个步态事件和组在首选/快速步态下的ML / AP-MoS。日语版的迷你平衡评估系统测试（J-Mini-BESTest），日语版的特定活动平衡信心量表（J-ABC量表）和过去一年的跌落次数均从科目。ML-MoSPOS（快速/首选），ML-MoSNEG（快速/首选）和AP-MoSmean（快速/首选）与J-Mini-BESTest显着相关。基于MoS的步态平衡评估可以反映个人的平衡功能。步态快，