American journal of preventive medicine
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Randomized Controlled Trial
Efficacy of a weight-loss website based on positive deviance. A randomized trial.
Web-based interventions for weight control could promote more-widespread dissemination of weight-loss opportunities; however, they remain limited in effectiveness. Incorporating weight-control practices used by individuals with long-term weight-loss success ("positive deviants") may improve the efficacy of web-based weight control interventions. ⋯ User-generated weight-loss practices from "positive deviants" could promote weight control in web-based interventions; however, further research is needed to improve program efficacy.
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Insufficient sleep among adolescents is common and has adverse health and behavior consequences. Understanding associations of physical activity and sedentary behaviors with sleep duration could shed light on ways to promote sufficient sleep. ⋯ Daily physical activity for ≥60 minutes and limited computer use are associated with sufficient sleep among adolescents.