Dept of Physical Education, Federal University of Paraíba, João Pessoa, Brazil.
J Phys Act Health. 2011 Aug;8(6):750-7. doi: 10.1123/jpah.8.6.750.
Research has demonstrated that adolescents who actively commute have higher levels of physical activity (PA), which have declined precipitously over the past 30 years. The purpose of this study was to describe the prevalence of active commuting to school; and to identify barriers associated with active commuting.
A cross-sectional study was conducted with 1672 students (46.8% boys and 53.2% girls) from 11 to 17 years of age in Caxias do Sul/RS, Brazil. The students were asked to answer questionnaires about active transport, PA, and sedentary behaviors. They also completed a cardiovascular fitness test and body composition measurements. The study used a multivariate Poisson regression analysis.
A total of 62.5% of students were observed to actively commute and the prevalence ratio (PR) of not actively commuting was associated with the type of school (Private: 2.41; 1.47, 3.95) and the time spent on commuting (>20 min: 1.93; 1.23, 3.03). The associated barriers to passive commuting were distance (3.02; 1.95, 4.71), crime/danger (2.65; 1.82, 3.85), and traffic (1.75; 1.19, 2.58).
This study showed that environmental variables were strongly associated with active commuting. However, no alterations in body composition or other behavioral variables were observed after adjustment.
研究表明，积极通勤的青少年身体活动水平更高，而过去 30 年来，青少年的身体活动水平急剧下降。本研究旨在描述青少年主动上学的流行率，并确定与主动上学相关的障碍。
本研究为横断面研究，共纳入来自巴西卡西亚斯杜苏尔市 11-17 岁的 1672 名学生（46.8%为男生，53.2%为女生）。学生们被要求回答关于主动交通、身体活动和久坐行为的问卷。他们还完成了心血管健康测试和身体成分测量。研究采用多变量泊松回归分析。
共有 62.5%的学生被观察到积极通勤，不积极通勤的患病率比（PR）与学校类型（私立：2.41；1.47，3.95）和通勤时间（>20 分钟：1.93；1.23，3.03）有关。被动通勤的相关障碍包括距离（3.02；1.95，4.71）、犯罪/危险（2.65；1.82，3.85）和交通（1.75；1.19，2.58）。
本研究表明，环境变量与积极通勤密切相关。然而，在调整后，没有观察到身体成分或其他行为变量的变化。
