Rationale and methods of a cluster-randomized controlled trial to promote active and healthy lifestyles among Brazilian students: the “Fortaleça sua Saúde” program

BMC Public Health

Study Protocol

Pedro Felipe Carvalhedo de Bruin¹  Adair da Silva Lopes²  Kelly Samara Silva²  Valter Cordeiro Barbosa Filho³  Antônio Barroso Lima⁴  Evanice Avelino de Souza⁵  Nicolino Trompieri Filho⁶  Thábyta Silva de Araújo⁷  Fabiane do Amaral Gubert⁷  Neiva Francenely Cunha Vieira⁷  Jorge Mota⁸ 

[1] Department of Clinical Medicine, Federal University of Ceara, Fortaleza, Brazil;Department of Physical Education, Research Centre in Physical Activity and Health, Federal University of Santa Catarina, Florianopolis, Brazil;Department of Physical Education, Research Centre in Physical Activity and Health, Federal University of Santa Catarina, Florianopolis, Brazil;Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal;Institute of Physical Education and Sports, Research Centre in Physical Activity and Health in School, Federal University of Ceara, Fortaleza, Brazil;Institute of Physical Education and Sports, Research Centre in Physical Activity and Health in School, Federal University of Ceara, Fortaleza, Brazil;Institute of Physical Education and Sports, Research Centre in Physical Activity and Health in School, Federal University of Ceara, Fortaleza, Brazil;Department of Clinical Medicine, Federal University of Ceara, Fortaleza, Brazil;Institute of Physical Education and Sports, Research Centre in Physical Activity and Health in School, Federal University of Ceara, Fortaleza, Brazil;Department of Education-Fundamentals, Faculty of Education, Federal University of Ceara, Fortaleza, Brazil;Institute of Physical Education and Sports, Research Centre in Physical Activity and Health in School, Federal University of Ceara, Fortaleza, Brazil;Department of Nursing, Aids Project: Education and Prevention, Federal University of Ceara, Fortaleza, Brazil;Research Centre in Physical Activity, Health and Leisure, Faculty of Sport, University of Porto, Porto, Portugal;

关键词: Adolescent behavior;    Intervention;    Motor activity;    Mediating variables;    Mental health;    Obesity;    Adolescent health;    School;    Health promotion;    Brazil;   

DOI  :  10.1186/s12889-015-2543-2

 received in 2015-06-22, accepted in 2015-11-24,  发布年份 2015

来源: Springer

【 摘 要 】

BackgroundInterventions on adolescents’ lifestyle are important, but the main mechanisms that explain the changes (mediating variables) on lifestyle are unclear. This paper presents the rationale and methods of an intervention program focused on promoting active and healthy lifestyles (especially physical activity [PA] practice and reducing screen time) among Brazilian students-the Fortaleça sua Saúde program (Portuguese for “strengthen your health”).Methods/DesignThis is a school-based cluster-randomized controlled trial. Three intervention and three control (no intervention) full-time public schools were randomly selected in Fortaleza, northeastern Brazil. Students (n = 1,272) from classes in Grades 7–9 were eligible, and 1,085 (548 in the intervention and 537 in control schools) completed the baseline and follow-up measures. The program duration was approximately four months and took place in 2014. Intervention strategies focused on teacher training, activities on health in the curriculum, active opportunities in the school environment (the availability of equipment for PA), and health education (health materials for students and parents). Data collection was undertaken before and immediately after the intervention. The primary variables included the practice of PA (weekly PA volume, PA behavior change stage and preference for PA during leisure-time) and screen time (TV and computer/video games). Potential intrapersonal, interpersonal and environmental mediators of PA and screen time were evaluated by a standardized questionnaire. Other lifestyle components (e.g., eating habits, substance use), psychological (e.g., self-rated health, body satisfaction) and biological (general and abdominal obesity) aspects, as well as academic performance were also evaluated in the total sample. Depressive symptoms, eating disorders, sleep quality, objectively-measured PA, and sedentary time were evaluated in obese students.DiscussionIf effective, this program will contribute to the development of public policies for the promotion of active and healthy lifestyles in youth, especially those from low- and middle-income countries. The main intrapersonal, interpersonal and/or environmental mediators of PA and screen time may also be indicated. Finally, we anticipate that the proposed strategies may be adaptable to public schools and may even be extended to the entire school system.Trial registrationClinicalTrials.Gov: NCT02439827. Registration date: May 3, 2015.

【 授权许可】

CC BY   
© Barbosa Filho et al. 2015