Universidade Federal da Paraíba-UFPB/CCS/DEF, Departamento de Educação Física, João Pessoa, PB, Brazil.
Prev Med. 2011 Feb;52(2):114-9. doi: 10.1016/j.ypmed.2010.12.002. Epub 2010 Dec 10.
To evaluate the association between levels of physical activity and perception of the social and built environmental in adolescents from Northeastern Brazil.
The sample comprised 2874 adolescents aged 14 to 19 years (57.8% females) enrolled in private or public secondary schools in the municipality of João Pessoa, Northeastern Brazil. Level of physical activity was measured by questionnaire. Perception of environmental characteristics was measured by means of fifteen questions rated on four-point Likert-type scales ranging from 1 ("strongly disagree") to 4 ("strongly agree"). The association between physical activity and perception of environmental characteristics was investigated using multivariate binary logistic regression.
Multivariate analysis showed that adolescents living in neighborhoods where other adolescents were physically active (68.7% vs. 60.1%, OR=1.20; 95%CI: 1.05-1.56, among boys only) or who lived close to places they liked to frequent (71.8% vs. 53.4%, OR=1.96; 95%CI: 1.40-2.78 among boys; and 42.0% vs. 32.3% OR=1.33; 95%CI: 1.10-1.74 among girls) were more likely to be physically active.
Adolescents with positive perceptions of certain environmental characteristics were more likely to be physically active. Environmental characteristics may relate differently to levels of physical activity among boys and girls.
评估巴西东北部青少年的身体活动水平与社会和建成环境感知之间的关系。
该样本包括来自巴西东北部若昂佩索阿市私立和公立中学的 2874 名 14 至 19 岁青少年（57.8%为女性）。身体活动水平通过问卷进行测量。环境特征感知通过十五个问题进行评估，这些问题采用四点李克特量表进行评分，范围从 1（“非常不同意”）到 4（“非常同意”）。使用多变量二元逻辑回归调查身体活动与环境特征感知之间的关联。
多变量分析表明，生活在有其他青少年积极参与身体活动的社区中的青少年（68.7%比 60.1%，OR=1.20；95%CI：1.05-1.56，仅在男孩中）或居住在他们喜欢光顾的地方附近的青少年（71.8%比 53.4%，OR=1.96；95%CI：1.40-2.78，仅在男孩中；42.0%比 32.3%，OR=1.33；95%CI：1.10-1.74，仅在女孩中）更有可能积极参与身体活动。
对某些环境特征有积极看法的青少年更有可能积极参与身体活动。环境特征对男孩和女孩的身体活动水平的影响可能不同。
