Efeitos da inserção de atividades esportivas cooperativas, exercícios aeróbicos e de força, e exercícios respiratórios durante as aulas de educação física na qualidade de vida de estudantes do ensino médio integrado

Abstract

This study evaluated the effects of different interventions performed during Physical Education classes on the quality of life of adolescents. This is a four-arm randomized clinical trial conducted with 326 technical high school students from the Pelotas and Bagé campuses of the Instituto Federal Sul-rio-grandense (IFSUL). Participants were divided into three intervention groups— diaphragmatic breathing exercises (GI-1), aerobic and strength exercises (GI-2), and cooperative sports activities (GI-3)—and a control group. The interventions occurred over 12 weeks during regular classes. Quality of life was assessed using the W HOQOL-bref questionnaire, administered before and after the intervention period. The Generalized Estimating Equations (GEE) model was used to analyze the main effects and for group*time interaction. In summary, none of the intervention groups showed significant improvements (p>0.05) in the total quality of life scores or in its domains, as did the control group. These results indicate that isolated school interventions may be insufficient in view of the complexity of this outcome, which involves multiple factors. However, this study indirectly contributes to the continuing education of the teachers who participated in the research and also provided students with opportunities for different physical practices that are not usually present in the school curriculum and that can be used throughout life.