Department of Family & Preventive Medicine, UCSD, San Diego, CA, USA.
Int J Behav Nutr Phys Act. 2012 Jul 30;9:89. doi: 10.1186/1479-5868-9-89.
Older adults spend little time outdoors and many are physically inactive. The relationship between outdoor physical activity and self rated health has not been studied in older adults. This paper aimed to assess the relation of location of physical activity to self rated health and physical activity minutes. This was an observational study of ambulatory adults 66 years and older conducted in 2005-2008. Participants (N = 754) completed survey measures of physical activity location and self rated health, and wore an accelerometer to objectively assess physical activity. A mixed model linear regression procedure adjusted for neighborhood clustering effects. Differences in self rated health and physical activity minutes were compared across three physical activity settings (indoor only, outdoor only, both indoor and outdoor).
Minutes of moderate to vigorous physical activity were significantly greater in those who were physically active at least once a week outdoors compared with those who were physically active indoors only. Self rated health was significantly related to being physically active but did not vary by location of activity.
Older adults who were physically active outdoors accumulated significantly more physical activity, but self-rated health was not significantly greater than those being physically active indoors.
老年人户外活动时间少，体力活动不足。户外活动与自我评估健康之间的关系在老年人中尚未得到研究。本文旨在评估体力活动地点与自我评估健康和体力活动分钟数的关系。这是一项 2005-2008 年对 66 岁及以上的步行成年人进行的观察性研究。参与者（N=754）完成了关于体力活动地点和自我评估健康的调查测量，并佩戴了加速度计以客观评估体力活动。混合模型线性回归程序调整了邻里聚类效应。在三种体力活动环境（仅室内、仅室外、室内和室外都有）之间比较了自我评估健康和体力活动分钟数的差异。
与仅在室内进行体力活动的人相比，每周至少一次在户外进行体力活动的人进行适度到剧烈体力活动的分钟数明显更多。自我评估健康与体力活动明显相关，但与活动地点无关。
在户外进行体力活动的老年人体力活动量明显增加，但自我评估健康并不明显优于在室内进行体力活动的人。
