The current systematic review found only weak evidence for the efficacy of SCT-based interventions in treating and preventing obesity in adolescents. Impacts on diet and physical activity were mixed, but were mostly not significant. ![]() Two of the eight randomized controlled trials (RCT) and two of the four quasi-experimental studies showed significant reduction in BMI among intervened participants compared to control. Seven had moderate or strong study quality. From 240 initially identified studies, 12 met the eligibility criteria. Only studies reporting body mass index (BMI) or its variant as one of the outcome measures were included. All the articles published up to July 2016 were included. An electronic literature search in PubMed-Medline, Web of Science and Scopus was performed to identify intervention studies based on SCT aiming at preventing or reducing obesity in adolescents. This systematic review aimed to evaluate the efficacy of intervention studies based on SCT in reducing or preventing overweight and obesity in adolescents. ![]() Social cognitive theory (SCT) is a well-known theory for designing nutrition education and physical activity programs for adolescents.
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