Smart-Phone Obesity Prevention Trial for Adolescent Boys in Low-Income Communities: The ATLAS RCT

摘要: OBJECTIVE: The goal of this study was to evaluate the impact Active Teen Leaders Avoiding Screen-time (ATLAS) intervention for adolescent boys, an obesity prevention using smartphone technology. METHODS: ATLAS a cluster randomized controlled trial conducted in 14 secondary schools low-income communities New South Wales, Australia. Participants were 361 boys (aged 12–14 years) considered at risk obesity. 20-week guided by self-determination theory and social cognitive involved: teacher professional development, provision fitness equipment schools, face-to-face physical activity sessions, lunchtime student mentoring researcher-led seminars, application Web site, parental strategies reducing screen-time. Outcome measures included BMI waist circumference, percent body fat, (accelerometers), screen-time, sugar-sweetened beverage intake, muscular fitness, resistance training skill competency. RESULTS: Overall, there no significant effects BMI, or activity. Significant found screen-time (mean ± SE: –30 10.08 min/d; P = .03), consumption (mean: –0.6 0.26 glass/d; .01), 0.9 0.49 repetition; .04), skills 5.7 0.67 units; CONCLUSIONS: This school-based targeting did not result on composition, perhaps due insufficient dose. However, successful improving movement skills, key weight-related behaviors.