Doi Takehiko, Nakakubo Sho, Sakimoto Fumio, Matsuda Soichiro, Shimada Hiroyuki
Department of Preventive Gerontology Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan.
Department of Preventive Gerontology Center for Gerontology and Social Science, Research Institute, National Center for Geriatrics and Gerontology, Obu, Aichi, Japan.
J Frailty Aging. 2025 Sep 3;14(5):100070. doi: 10.1016/j.tjfa.2025.100070.
Going outdoors is crucial in promoting older adults' health. This study examined the association between incident disability and the frequency of going outdoors in certain life spaces.
This prospective study included 19,822 older adults (mean age ± standard deviation: 73.5 ± 5.8 years; 53.6 % women). The frequency of going outdoors within the past month was collected based on life space, categorized by distance from home (up to 1 km; 1-10 km; and >10 km). Participants were classified into three groups (called "Rarely": less than 1 day, "Sometimes": 1 to 3 days, and "Often": 4 days or more) for each life space. Incident disability was defined using the Long-Term Care Insurance system data (mean follow-up: 23.3 months). A Cox proportional hazards model was used to examine the association between incident disability and the frequency of going outdoors for each life space, adjusted for covariates.
A total of 1038 (5.2 %) participants had an incident disability. Within the "up to 1 km" category, no frequency group was associated with disability; within "1-10 km," two frequency groups were associated with disability ("Sometimes" group: hazard ratio [HR] 0.85, [95 % confidence interval [CI]: 0.73-0.99]; "Often" group: HR 0.68, [95 % CI: 0.57-0.81]); within ">10 km," similar results were observed ("Sometimes" group: HR 0.84, [95 % CI: 0.72-0.98]; "Often" group: HR 0.75, [95 % CI: 0.53-1.07]).
The frequency of going outdoors at specific distances from home is associated with disability.
户外活动对促进老年人健康至关重要。本研究调查了特定生活空间中残疾发生率与户外活动频率之间的关联。
这项前瞻性研究纳入了19822名老年人（平均年龄±标准差：73.5±5.8岁；女性占53.6%）。根据生活空间收集过去一个月内的户外活动频率，并按离家距离进行分类（1公里以内；1 - 10公里；超过10公里）。每个生活空间的参与者被分为三组（分别称为“很少”：少于1天，“有时”：1至3天，“经常”：4天及以上）。使用长期护理保险系统数据定义残疾发生率（平均随访时间：23.3个月）。采用Cox比例风险模型，在对协变量进行调整后，研究每个生活空间中残疾发生率与户外活动频率之间的关联。
共有1038名（5.2%）参与者发生残疾。在“1公里以内”类别中，各频率组与残疾均无关联；在“1 - 10公里”范围内，两个频率组与残疾有关（“有时”组：风险比[HR] 0.85，[95%置信区间[CI]：0.73 - 0.99]；“经常”组：HR 0.68，[95% CI：0.57 - 0.81]）；在“超过10公里”范围内，观察到类似结果（“有时”组：HR 0.84，[95% CI：0.72 - 0.98]；“经常”组：HR 0.75，[95% CI：0.53 - 1.07]）。
离家特定距离的户外活动频率与残疾有关。
