Diez Roux Ana V, Evenson Kelly R, McGinn Aileen P, Brown Daniel G, Moore Latetia, Brines Shannon, Jacobs David R
Center for Social Epidemiology and Population Health, University of Michigan, Ann Arbor, USA.
Am J Public Health. 2007 Mar;97(3):493-9. doi: 10.2105/AJPH.2006.087734. Epub 2007 Jan 31.
Using data from a large cohort of adults aged 45 to 84 years-old, we investigated whether availability of recreational resources is related to physical activity levels.
Data from a multiethnic sample of 2723 adult residents of New York City, NY; Baltimore, Md; and Forsyth County, NC, were linked to data on locations of recreational resources. We measured the availability (density) of resources within 0.5 (0.8 km), 1, 2, and 5 miles of each participant's residence and used binomial regression to investigate associations of density with physical activity.
After adjustment for potential confounders, individuals in the tertile of participants residing in areas with the highest density of resources were more likely to report physical activity during a typical week than were individuals in the lowest tertile. Associations between availability of recreational resources and physical activity levels were not present for the smallest area assessed (0.5 miles) but were present for areas ranging from 1 to 5 miles. These associations were slightly stronger among minority and low-income residents.
Availability of resources may be 1 of several environmental factors that influence individuals' physical activity behaviors.
利用来自45至84岁成年人大队列的数据,我们调查了娱乐资源的可获得性是否与身体活动水平相关。
来自纽约市、马里兰州巴尔的摩市和北卡罗来纳州福赛斯县的2723名成年居民的多民族样本数据与娱乐资源位置数据相关联。我们测量了每个参与者住所0.5英里(0.8公里)、1英里、2英里和5英里范围内资源的可获得性(密度),并使用二项式回归来研究密度与身体活动之间的关联。
在对潜在混杂因素进行调整后,居住在资源密度最高地区的参与者三分位数中的个体比最低三分位数中的个体更有可能报告在典型一周内进行了身体活动。在评估的最小区域(0.5英里)内,娱乐资源的可获得性与身体活动水平之间不存在关联,但在1至5英里的区域内存在关联。这些关联在少数族裔和低收入居民中略强。
资源的可获得性可能是影响个体身体活动行为的几个环境因素之一。