Perez L G, Slymen D J, Sallis J F, Ayala G X, Elder J P, Arredondo E M
Joint Doctoral Program in Public Health, University of California, San Diego/San Diego State University, San Diego, CA 92182, USA.
Institute for Behavioral and Community Health, San Diego, CA 92123, USA.
J Public Health (Oxf). 2017 Jun 1;39(2):e10-e18. doi: 10.1093/pubmed/fdw061.
Latinas have disproportionately low levels of physical activity (PA) and the ecological correlates of their PA remain unclear. This study aims to test interactions between individual and environmental factors on Latinas' PA.
We analyzed baseline data from 436 Latinas participating in a PA randomized controlled trial in San Diego, CA [Fe en Acción/Faith in Action]. Measures included demographics, perceived environment, PA and anthropometrics. Mixed effects models examined interactions between individual and environmental factors on self-reported leisure-time and transportation, and accelerometer-assessed PA.
Significant positive associations were found between neighborhood aesthetics and leisure-time moderate-to-vigorous PA (MVPA) and between having destinations within walking distance from home and transportation PA (P < 0.05). We found significant interactions of income with aesthetics and sidewalk maintenance as well as between weight status and safety from crime. Favorable aesthetics was related to more leisure-time MVPA only among lower income women (odds ratio (OR) = 1.57; 95% confidence interval (CI): 1.18, 2.08); however, higher income women reporting better sidewalk maintenance reported more leisure-time MVPA (OR = 1.51; 95% CI: 1.06, 2.15). Higher perceived safety from crime was positively related to transportation PA only among overweight/obese women.
Subgroup differences should be considered when developing interventions targeting the neighborhood environment to promote Latinas' PA.
拉丁裔女性的身体活动（PA）水平异常低，且其身体活动的生态关联尚不清楚。本研究旨在测试个体因素与环境因素对拉丁裔女性身体活动的相互作用。
我们分析了436名参与加利福尼亚州圣地亚哥市一项身体活动随机对照试验[Fe en Acción/Faith in Action]的拉丁裔女性的基线数据。测量指标包括人口统计学特征、感知环境、身体活动和人体测量学指标。混合效应模型检验了个体因素与环境因素对自我报告的休闲时间和交通相关身体活动以及通过加速度计评估的身体活动的相互作用。
发现邻里美观程度与休闲时间中等至剧烈身体活动（MVPA）之间以及家附近有可步行到达的目的地与交通相关身体活动之间存在显著的正相关（P < 0.05）。我们发现收入与美观程度和人行道维护之间以及体重状况与犯罪安全感之间存在显著的相互作用。只有在低收入女性中，良好的美观程度与更多的休闲时间MVPA相关（优势比（OR）= 1.57；95%置信区间（CI）：1.18，2.08）；然而，报告人行道维护较好的高收入女性报告的休闲时间MVPA更多（OR = 1.51；95% CI：1.06，2.15）。只有在超重/肥胖女性中，较高的犯罪安全感与交通相关身体活动呈正相关。
在制定针对邻里环境以促进拉丁裔女性身体活动的干预措施时，应考虑亚组差异。
