División de salud, Fundacion FES Social, Bogotá, Colombia.
J Phys Act Health. 2010 Jul;7 Suppl 2:S196-203. doi: 10.1123/jpah.7.s2.s196.
Even though there is increasing evidence that the built environment (BE) has an influence on leisure-time physical activity (LTPA), little is known about this relationship in developing countries. The objective of this study was to assess the associations between objective built environment characteristics and LTPA.
A cross-sectional multilevel study was conducted in 27 neighborhoods in which 1315 adults aged 18-65 years were surveyed. An adapted version of the IPAQ (long version) was used to assess LTPA. Objective BE characteristics were obtained using Geographic Information Systems. Associations were assessed using multilevel polytomous logistic regression.
Compared with inactive people, those who resided in neighborhoods with the highest tertile dedicated to parks (7.4% to 25.2%) were more likely to be regularly active (POR = 2.05, 95% CI = 1.13-3.72; P = 0.021). Those who resided in neighborhoods with presence of TransMilenio stations (mass public transportation system) were more likely to be irregularly active (POR = 1.27, 95% CI = 1.07-1.50, P = 0.009) as compared with inactive people.
These findings showed that park density and availability of TransMilenio stations at neighborhood level are positively associated with LTPA. Public health efforts to address physical inactivity should consider the potential influences of urban planning and mass public transportation systems on health.
尽管越来越多的证据表明，建筑环境（BE）对闲暇时间体力活动（LTPA）有影响，但在发展中国家，人们对此知之甚少。本研究的目的是评估客观建筑环境特征与 LTPA 之间的关系。
这是一项在 27 个街区进行的横断面多水平研究，共有 1315 名 18-65 岁的成年人接受了调查。使用 IPAQ（长版本）的改编版评估 LTPA。使用地理信息系统获取客观的 BE 特征。使用多水平多项逻辑回归评估关联。
与不活跃的人相比，那些居住在公园专用面积最高 tertile（7.4%至 25.2%）的街区的人更有可能经常进行体育活动（POR = 2.05，95%CI = 1.13-3.72；P = 0.021）。与不活跃的人相比，那些居住在有 TransMilenio 站（大众公共交通系统）的街区的人更有可能进行不规律的体力活动（POR = 1.27，95%CI = 1.07-1.50，P = 0.009）。
这些发现表明，公园密度和邻里层面上 TransMilenio 站的可用性与 LTPA 呈正相关。解决身体活动不足问题的公共卫生工作应考虑城市规划和大众公共交通系统对健康的潜在影响。
