John Snow Inc, 44 Farnsworth Street, Boston, MA 02210, USA.
Prev Chronic Dis. 2013 Jun 20;10:E102. doi: 10.5888/pcd10.120119.
Whether patterns of physical activity in different communities can be attributed to the built environment or instead reflect self-selection is not well understood. The objective of this study was to examine neighborhood preferences and behavior-specific physical activity among residents who moved to a new urbanist-designed community.
We used data from a 2009 survey (n = 424) that was designed and administered to evaluate neighborhood preferences and behavior-specific physical activity before and after residents moved. Data were grouped and stratified by pre-move physical activity levels into low-, middle-, and high-activity groups. We used Student's paired sample t test and Wilcoxon signed-rank test to compare pre- and post-move scores and used an analysis of variance to compare mean changes as a function of pre-move physical activity level.
After moving, the high-activity group continued to be significantly more active than the middle- and low-activity groups (P < .001). However, we saw the biggest increase in pre- to post-move total physical activity in the low-activity group (mean increase, 176.3 min/wk) compared with the middle- (mean increase, 69.5 min/wk) and high-activity groups (mean decrease, 67.9 min/wk). All 3 groups had significant increases in walking inside the neighborhood for recreation. The preferred neighborhood features with the most significant pre- to post-move change scores were those associated with greater walkability.
This study supports the role the environment plays in physical activity. These data suggest that moving to an activity-friendly neighborhood can positively affect physical activity levels, particularly among residents who had previously been least active.
不同社区的身体活动模式是归因于建成环境还是反映了自我选择,目前尚不清楚。本研究的目的是检验搬到新城市主义设计社区的居民的邻里偏好和行为特异性身体活动。
我们使用了 2009 年调查(n=424)的数据,该调查旨在设计和管理之前和之后居民搬家的邻里偏好和行为特异性身体活动。根据搬家前的身体活动水平,数据分为低、中、高活动组。我们使用学生配对样本 t 检验和 Wilcoxon 符号秩检验比较搬家前后的得分,并使用方差分析比较作为搬家前身体活动水平函数的平均变化。
搬家后,高活动组继续明显比中、低活动组活跃(P<0.001)。然而,我们在低活动组中看到了搬家前后总身体活动量的最大增加(平均增加 176.3 分钟/周),而在中活动组(平均增加 69.5 分钟/周)和高活动组(平均减少 67.9 分钟/周)中。所有 3 组的社区内散步娱乐的活动量都有显著增加。具有最大搬家前后变化得分的首选邻里特征是与步行便利性相关的特征。
本研究支持环境在身体活动中的作用。这些数据表明,搬到一个有利于活动的社区可以积极影响身体活动水平,尤其是对那些以前活动最少的居民。