John Snow Inc.-JSI, Boston, MA, USA.
J Phys Act Health. 2012 Nov;9(8):1089-97. doi: 10.1123/jpah.9.8.1089. Epub 2011 Dec 27.
The ability to design or reconfigure communities to be more supportive of physical activity has broad public health implications. Assessing the context and locations of specific behaviors will lead to a better understanding of how neighborhood attributes influence overall physical activity.
A cross-sectional survey was used to assess physical activity before and after residents moved to Mueller, a New Urbanist-inspired community in Austin, Texas. Context-specific physical activity and the locations where these activities took place were examined.
Overall, residents reported that they increased their physical activity by 66.4 minutes (95% CI: 32.8-100.1) per week after moving to Mueller. For recreational walking, residents reported an average of 159.8 minutes inside Mueller after moving, an increase from 91.7 minutes before their move (P < .001). Correspondingly, residents walked 18.6 fewer minutes per week outside Mueller (P < .001). For transport-related walking, the mean number of minutes spent walking outside Mueller remained constant, but the time spent walking inside the neighborhood decreased an average of 10.8 minutes per week after moving (P = .02).
The most notable increase was seen in walking for recreation inside the neighborhood. Results of this natural experiment strongly suggest the environmental impact on physical activity and underscore the importance of investigating the context and locations where different types of physical activity occur.
设计或重新配置社区以更好地支持身体活动具有广泛的公共卫生意义。评估特定行为的背景和地点将有助于更好地了解邻里属性如何影响整体身体活动。
采用横断面调查评估居民搬迁到德克萨斯州奥斯汀的新城市主义启发式 Mueller 社区前后的身体活动情况。检查了特定于上下文的身体活动以及这些活动发生的地点。
总体而言,居民报告称,搬迁到 Mueller 后,他们的身体活动每周增加了 66.4 分钟(95%CI:32.8-100.1)。对于休闲散步,居民在搬迁后报告 Mueller 内平均每周有 159.8 分钟,比搬迁前的 91.7 分钟有所增加(P<0.001)。相应地,居民每周在 Mueller 外少走 18.6 分钟(P<0.001)。对于与交通相关的步行,每周在 Mueller 外步行的平均时间保持不变,但搬迁后每周在社区内步行的时间平均减少了 10.8 分钟(P=0.02)。
最显著的增加是在社区内进行娱乐性散步。这项自然实验的结果强烈表明了环境对身体活动的影响,并强调了调查不同类型身体活动发生的背景和地点的重要性。