Duncan Susan C, Strycker Lisa A, Chaumeton Nigel R
Oregon Research Institute, 1776 Millrace Drive, Eugene, OR 97403.
J Sch Health. 2015 Jan;85(1):43-52. doi: 10.1111/josh.12218.
The purpose of this research was to examine the impact of school-related variables on the physical activity (PA) levels of early adolescent African American, Latino, and White girls.
Data were collected from 353 African American (N = 123), Latino (N = 118), and White (N = 112) girls. Physical activity levels included a PA latent factor and minutes per day of moderate-to-vigorous physical activity (MVPA). School variables included hours of physical education (PE), PE enjoyment, school physical environment, recess activity, and active transport to/from school. Multiple-group structural equation modeling examined relations between school variables and PA across ethnic groups.
Hours of PE were positively related to higher PA factor scores. Active transport was related to higher PA factor scores for White girls only, and to greater MVPA for African American girls only. Hours of PE were related to PE enjoyment and the school physical environment for some ethnic groups. Physical education enjoyment was related to more recess activity among African American and Latino girls, and PE enjoyment was associated with more active transport to school for all girls.
Physical education participation and active transport significantly contribute to girls' levels of PA, with differences across ethnic groups.
本研究的目的是探讨与学校相关的变量对青春期早期非裔美国、拉丁裔和白人女孩身体活动（PA）水平的影响。
收集了353名非裔美国女孩（N = 123）、拉丁裔女孩（N = 118）和白人女孩（N = 112）的数据。身体活动水平包括一个PA潜在因子和每天中等至剧烈身体活动（MVPA）的分钟数。学校变量包括体育教育（PE）课时、对体育教育的喜爱程度、学校体育环境、课间休息活动以及往返学校的主动交通方式。多组结构方程模型检验了不同种族群体中学校变量与PA之间的关系。
体育教育课时与较高的PA因子得分呈正相关。主动交通方式仅与白人女孩较高的PA因子得分相关，且仅与非裔美国女孩较多的MVPA相关。体育教育课时与某些种族群体对体育教育的喜爱程度以及学校体育环境有关。对体育教育的喜爱程度与非裔美国和拉丁裔女孩更多的课间休息活动相关，并且对体育教育的喜爱程度与所有女孩更多的往返学校主动交通方式相关。
参与体育教育和主动交通方式对女孩的PA水平有显著贡献，不同种族群体之间存在差异。
