Ferreira da Silva Dos Santos Sueyla, Bordin Drenya, Dornelas de Souza Elaine Fernanda, Freitas Júnior Ismael Forte
Institute of Social Science, Education and Zootechnics, Federal University of Amazonas, Parintins, Amazonas, Brazil.
Faculty of Science and Technology, São Paulo State University, Presidente Prudente, São Paulo, Brazil.
Contemp Clin Trials Commun. 2019 Dec 14;17:100505. doi: 10.1016/j.conctc.2019.100505. eCollection 2020 Mar.
Physical activity promotes positive effects on people's health, but most adolescents do not engage in sufficient physical activity to receive the benefits. Studies suggest that school-based interventions can be effective in increasing physical activity in adolescents. However, the literature is inconsistent on the effect size and the type of intervention. This paper presents the design of the SCHOOL IN ACTION program to increase physical activity engagement and healthy eating habits. The cluster randomized controlled trial was performed during a period of six months of intervention and 12 months of follow-up in adolescents from four Brazilian public schools. The theoretical model is based on health promoting schools and the social-ecological and self-determination theory. The action strategies were: improvement of exercises intensity during physical education classes and during lunch breaks; vegetable gardening experience; active breaks in non-physical education classes; counselling health to parents and adolescents and changes in the school environment to promote physical activity and healthy eating. Primary variables were physical activity and sedentary behavior (both assessed by accelerometers). Secondary variables were body composition (assessed by dual-energy x-ray absorptiometry) and eating habits (assessed by questionnaire and 3-day food recall). Questionnaires were used to assess other information related to life satisfaction, health behavior and socioeconomic information. Statistical analysis will follow the principles of intention-to-treat and will explore the composition data analysis and mediating factors of lifestyle-related behaviors. We propose that SCHOOL IN ACTION program will be effective to provide evidence to increase physical activity and food healthy habits in adolescents' students. : NCT03153176. Follow-up and data analysis.
体育活动对人们的健康有积极影响，但大多数青少年没有进行足够的体育活动以获得这些益处。研究表明，基于学校的干预措施可以有效增加青少年的体育活动。然而，关于干预措施的效果大小和类型，文献中的说法并不一致。本文介绍了“行动中的学校”计划的设计，该计划旨在提高体育活动参与度和培养健康饮食习惯。这项整群随机对照试验在巴西四所公立学校的青少年中进行，为期6个月的干预期和12个月的随访期。理论模型基于健康促进学校以及社会生态和自我决定理论。行动策略包括：提高体育课和午休期间的运动强度；蔬菜园艺体验；非体育课上的积极休息；为家长和青少年提供健康咨询；改变学校环境以促进体育活动和健康饮食。主要变量是体育活动和久坐行为（均通过加速度计评估）。次要变量是身体成分（通过双能X射线吸收法评估）和饮食习惯（通过问卷调查和3天食物回顾评估）。问卷用于评估与生活满意度、健康行为和社会经济信息相关的其他信息。统计分析将遵循意向性分析原则，并探索生活方式相关行为的构成数据分析和中介因素。我们认为，“行动中的学校”计划将有效地为增加青少年学生的体育活动和健康饮食习惯提供证据。：NCT03153176。随访与数据分析。
