Psychological, social and physical environmental mediators of the SCORES intervention on physical activity among children living in low-income communities
Psychological, social and physical environmental mediators of the SCORES intervention on physical activity among children living in low-income communities
复制标题
DOI：
10.1016/j.psychsport.2017
复制
发表时间：
2017-09-01
影响因子：
3.4
通讯作者：
Lubans, David R.
中科院分区：
文献类型：
--
作者：
Cohen, Kristen E.;Morgan, Philip J.;Lubans, David R.
目的：本研究探讨了社会生态变量对加速计确定的身体活动儿童在支持儿童的成果使用奖励，运动和技能（SCORES）intervention.Design：随机对照试验mediation analysis.Methods：小学生被随机分配的SCORES多组分干预或对照组的12个月的研究。结果是加速度计得出的总中度至剧烈体力活动（MVPA）。在儿童中测量的假设介质是身体活动的享受和感知的运动能力和社会支持。在父母中测量的假设调解人是家庭社会支持，获得体育活动设施和设备在家里，并认为获得体育活动的机会，在当地社区。结果：教师的社会支持（A = 1.73，SE = 0.88，p = 0.048）和家长对社区体育机会的感知（A = 2.69，SE = 1.12，p = 0.016）具有显著的干预效应。感知运动能力（B = 0.48，SE = 0.36，p = 0.027）、父母感知当地社区体育活动机会（B = 0.60，SE = 0.26，p = 0.021）的变化与总MVPA的变化之间存在显著相关性。父母对当地社区体育活动机会的感知对总MVPA有显着的中介作用（AB = 1.61，95%CI = 0.06 ~ 3.95，比例13%）。父母对当地社区体育活动机会的感知是儿童行为改变的潜在机制，并介导了SCORES干预的效果客观测量的身体活动。(C)2017爱思唯尔有限公司版权所有
Objectives: This study examined mediation effects of socio-ecological variables on accelerometer determined physical activity among children in the Supporting Children's Outcomes using Rewards, Exercise and Skills (SCORES) intervention.Design: Randomized control trial mediation analysis.Methods: Primary school children were randomly assigned the SCORES multi-component intervention or control group for the 12-month study. The outcome was accelerometer derived total moderate-to vigorous physical activity (MVPA). Hypothesized mediators measured in children were physical activity enjoyment and perceived sport competence and social support. Hypothesized mediators measured in parents were family social support, access to physical activity facilities and equipment at home, and perceived access to physical activity opportunities in the local community. Mediation analyses were conducted using multi-level linear analysis in MPlus.Results: There were significant intervention effects for social support from teachers (A = 1.73, SE = 0.88, p = 0.048) and parental perceived access to physical opportunities in the local community (A = 2.69, SE = 1.12, p = 0.016). There were significant associations between changes in perceived sport competence (B = 0.48, SE = 0.36, p = 0.027), parental perceived access to physical activity opportunities in the local community (B = 0.60, SE = 0.26, p = 0.021), and changes in total MVPA. Parental perceived access to physical activity opportunities in the local community was found to have a significant mediating effect on total MVPA (AB = 1.61, 95% CI = 0.06 to 3.95, proportion 13%).Conclusions: Parental perceived access to physical activity opportunities in the local community is a potential mechanism of behavior change for children and mediated the effect of the SCORES intervention on objectively measured physical activity. (C) 2017 Elsevier Ltd. All rights reserved.