Identifying the relevant geography is an ongoing obstacle to effectively evaluating the influence of neighborhood built environment on physical activity. We characterized density and diversity of destinations that 77 older adults experienced within individually representative Global Positioning System (GPS) activity spaces and traditional residential buffers and assessed their associations with accelerometry-measured physical activity. Traditional residential buffers had lower destination density and diversity than activity spaces. Activity spaces based only on pedestrian and bicycling trips had higher destination densities than all-mode activity spaces. Regardless of neighborhood definition, adjusted associations between destinations and physical activity generally failed to reach statistical significance. However, within pedestrian and bicycling-based activity spaces, each additional destination type was associated with 243.3 more steps/day (95% confidence interval (CI) [36.0, 450.7]). Traditional buffers may not accurately portray the geographic space or neighborhood resources experienced by older adults. Pedestrian and bicycling activity spaces elucidate the importance of destinations for facilitating active transportation.

中文翻译：

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老年人在 GPS 活动空间内体验的目的地

确定相关地理是有效评估邻里建筑环境对身体活动影响的持续障碍。我们描述了 77 名老年人在具有代表性的全球定位系统 (GPS) 活动空间和传统住宅缓冲区中所经历的目的地的密度和多样性，并评估了它们与加速度计测量的身体活动的关联。传统住宅缓冲区的目的地密度和多样性低于活动空间。仅基于行人和自行车出行的活动空间比全模式活动空间具有更高的目的地密度。无论邻域定义如何，目的地与身体活动之间的调整关联通常未能达到统计显着性。然而，在基于步行和骑自行车的活动空间中，每增加一个目的地类型，每天多走 243.3 步（95% 置信区间 (CI) [36.0, 450.7]）。传统缓冲区可能无法准确描绘老年人所经历的地理空间或邻里资源。行人和自行车活动空间阐明了目的地对于促进主动交通的重要性。