Graduate School, International University of Health and Welfare, Tokyo, Japan.
Saiseikai, Onojo, Minami Day Service Center, Onojo, Japan.
Geriatr Gerontol Int. 2018 Aug;18(8):1267-1271. doi: 10.1111/ggi.13462. Epub 2018 Jun 27.
We examined factors related to conditions of life function and falls, including eye movements and gait variability, in community-dwelling older adults in Japan.
Participants were 82 older adults (21 men, 61 women, mean age 76.1 years). We measured eye movements and gait variability during walking, and cognitive, attentional and life function. We compared two groups according to their fall history, and used a multiple logistic regression analysis to determine its relevance.
Fixation time, which was estimated from eye movements during obstacle crossing, and gait variability (vertical) were significantly associated with falls. There was also a significant correlation between fixation time and gait variability during obstacle crossing. In other words, the higher the gait variability in older adults, the higher the risk of falls, which was due to reduced attention estimated from eye movements during obstacle crossing that required obstacle avoidance.
These results show that poor attention during gait is a critical risk factor for falls in community-dwelling older adults. For fall prevention, it is necessary to promote exercises for attention, and to maintain an older adult-friendly pedestrian environment. Geriatr Gerontol Int 2018; 18: 1267-1271.
我们研究了与生活功能和跌倒相关的因素,包括眼动和步态变异性,在日本的社区居住的老年人。
参与者为 82 名老年人(21 名男性,61 名女性,平均年龄 76.1 岁)。我们在行走过程中测量了眼动和步态变异性,并评估了认知、注意力和生活功能。我们根据他们的跌倒史将两组进行比较,并使用多变量逻辑回归分析来确定其相关性。
在穿越障碍物过程中,从眼球运动中估计的注视时间和步态变异性(垂直)与跌倒显著相关。在穿越障碍物过程中,注视时间和步态变异性之间也存在显著相关性。换句话说,老年人的步态变异性越高,跌倒的风险就越高,这是由于在需要避免障碍物的穿越障碍物过程中,眼球运动所估计的注意力降低所致。
这些结果表明,行走过程中注意力不佳是社区居住的老年人跌倒的关键危险因素。为了预防跌倒,有必要促进注意力的锻炼,并保持一个适合老年人的行人环境。老年医学与老年病学国际 2018; 18: 1267-1271。