Center for Community-Based Healthcare Research and Education (CoHRE), Head Office for Research and Academic Information, Shimane University, 223-8 Enya-cho, Izumo-shi, Shimane 693-8501, Japan.
Center for Community-Based Healthcare Research and Education (CoHRE), Head Office for Research and Academic Information, Shimane University, 223-8 Enya-cho, Izumo-shi, Shimane 693-8501, Japan; Center for Primary Health Care Research, Department of Clinical Sciences Malmö, Lund University, Jan Waldenströms gata 35, Malmö 20502, Sweden.
Arch Gerontol Geriatr. 2021 Nov-Dec;97:104510. doi: 10.1016/j.archger.2021.104510. Epub 2021 Aug 26.
This cross-sectional study investigated the association between hilliness and walking speed in community-dwelling older adults, and whether it varied according to their car-driving status.
Data were collected from 590 participants aged 65 and older living in Okinoshima Town, Shimane prefecture, Japan, in 2018. Comfortable walking speed (m/s) was objectively assessed. Hilliness was measured by the mean land slope (degree) within a 500-m or 1000-m network buffer around each participant's home using a geographic information system. A multiple linear regression examined whether the land slope was associated with walking speed, adjusted for sex, age, body mass index, smoking habits, alcohol consumption habits, exercise habits, chronic disease, and living arrangements. A stratified analysis by car-driving status was also conducted.
After adjusting for all confounders, the land slope within the 500-m or 1000-m network buffer was negatively associated with walking speed (B = -0.007, 95% CI [-0.011, -0.002]; B = -0.007, 95% CI [-0.011, -0.003], respectively). The stratified analysis by car-driving status showed that living in a hilly area was negatively associated with walking speed among non-drivers in the 500-m or 1000-m network buffer (B = -0.011, 95% CI [-0.017, -0.004]; B = -0.012, 95% CI [-0.019, -0.006]), though there were no associations among drivers.
A hilly environment is positively associated with slow walking speed in community-dwelling older adults in Japan. Moreover, car-driving status potentially modifies the relationship between living in a hilly environment and slow walking speed.
本横断面研究旨在探讨社区居住的老年人居住地的坡度与行走速度之间的关系，并分析其是否因是否开车而有所不同。
2018 年，在日本岛根县大岛町，收集了 590 名 65 岁及以上老年人的数据。使用地理信息系统客观评估了他们的舒适行走速度（m/s）。通过参与者家周围 500 米或 1000 米网络缓冲区的平均地面坡度（度）来衡量坡度。使用多线性回归，调整性别、年龄、体重指数、吸烟习惯、饮酒习惯、运动习惯、慢性疾病和生活安排等混杂因素后，检验了土地坡度与行走速度之间的关系。还进行了按驾驶状态分层的分析。
在调整了所有混杂因素后，500 米或 1000 米网络缓冲区的地面坡度与行走速度呈负相关（B=-0.007，95%CI[-0.011，-0.002]；B=-0.007，95%CI[-0.011，-0.003]）。按驾驶状态分层的分析表明，在 500 米或 1000 米网络缓冲区中，非驾驶员居住在丘陵地区与行走速度呈负相关（B=-0.011，95%CI[-0.017，-0.004]；B=-0.012，95%CI[-0.019，-0.006]），而驾驶员则没有相关性。
日本社区居住的老年人居住在丘陵地区与行走速度较慢呈正相关。此外，驾驶状态可能会调节居住在丘陵地区与行走速度较慢之间的关系。
