There is one clinical trial.
This project seeks to improve the effectiveness of a novel dissonance-based obesity prevention program that has reduced future BMI gain and overweight/obesity onset by (a) experimentally testing whether implementing it in single- versus mixed-sex groups, which should increase dissonance-induction that contributes to weight gain prevention effects, and (b) experimentally testing whether adding food response and attention training, which theoretically reduces valuation of and attention for high-calorie foods, increases weight gain prevention effects. This randomized trial would be the first to experimentally manipulate these two factors in an effort to produce superior weight gain prevention effects. A brief effective obesity prevention program that can be easily, inexpensively, and broadly implemented to late adolescents at risk for excess weight gain, as has been the case with another dissonance-based prevention program, could markedly reduce the prevalence of obesity and associated morbidity and mortality.
Description: Change in percentage of body fat (Not collected during COVID-19 shelter-at-home order)
Measure: Body Fat Time: Baseline, 2 months, 8 months, 14 months, 26 months, and 38 monthsDescription: Change in BMI (Not collected during COVID-19 shelter-at-home order)
Measure: Body Mass Index (BMI) Time: Baseline, 2 months, 8 months, 14 months, 26 months, and 38 monthsDescription: Change in weight concerns. Scale scores range from 0 to 42 with higher scores being indicative of higher weight concerns.
Measure: Weight Concerns Scale from the Eating Disorder Examination Questionnaire (EDE-Q) Time: Baseline, 2 months, 8 months, 14 months, 26 months, and 38 monthsDescription: Change in depressive symptoms
Measure: Beck Depression Index (BDI) Time: Baseline, 2 months, 8 months, 14 months, 26 months, and 38 monthsDescription: Change in eating disorder symptoms
Measure: Eating Disorder Interview (EDDI) Time: Baseline, 2 months, 8 months, 14 months, 26 months, and 38 months