Kligerman Morton, Sallis James F, Ryan Sherry, Frank Lawrence D, Nader Philip R
San Diego State University, San Diego, California 92103, USA.
Am J Health Promot. 2007 Mar-Apr;21(4):274-7. doi: 10.4278/0890-1171-21.4.274.
To examine associations of neighborhood walkability and recreation environment variables with physical activity in adolescents.
The cross-sectional study was conducted with 98 white or Mexican-American adolescents (mean age = 16.2 years). Physical activity was measured with 7 days of accelerometer monitoring. Height and weight were measured to compute body mass index (BMI). Environmental measures were created using geographic information systems. A neighborhood walkability index was based on land use mix, retail density, street connectivity, and residential density. Proximity to public and private recreation facilities was assessed.
In a linear regression, the walkability index within 0.5 mile of homes was related to minutes of moderate to vigorous physical activity, explaining approximately 4% of variance. Recreation variables were not related to physical activity, and BMI was not explained by environmental variables.
Neighborhood walkability was related to adolescents'physical activity, similar to findings for adults.
研究社区步行便利性和休闲环境变量与青少年身体活动之间的关联。
对98名白人或墨西哥裔美国青少年（平均年龄 = 16.2岁）进行了横断面研究。通过7天的加速度计监测来测量身体活动。测量身高和体重以计算体重指数（BMI）。使用地理信息系统创建环境测量指标。社区步行便利性指数基于土地利用混合、零售密度、街道连通性和居住密度。评估了与公共和私人休闲设施的距离。
在一项线性回归中，家周围0.5英里范围内的步行便利性指数与中度至剧烈身体活动的分钟数相关，解释了约4%的方差。休闲变量与身体活动无关，环境变量也无法解释BMI。
社区步行便利性与青少年的身体活动有关，这与成年人的研究结果相似。
