Does the Healthy Body Image program improve lifestyle habits among high-schoolstudents? A radndomised controlled trial With 12-month follow-up
AuthorBorgen, Christine Sundgot; Friborg, Oddgeir; Kolle, Elin; Torstveit, Monica Klungland; Sundgot-Borgen, Jorunn; Engen, Kethe Marie Elgesem; Rosenvinge, Jan H; Pettersen, Gunn; Bratland-Sanda, Solfrid
Methods - The HBI intervention comprises three interactive workshops, with three overarching themes related to body image, social media literacy, and lifestyle. A total of 2446 boys (43%) and girls in grade 12 (mean age 16.8 years) from 30 high schools participated in this cluster-randomized controlled study. Schools were randomized to the HBI intervention or control study arm. Data on physical activity, eating habits, and sleep were collected at baseline, post intervention, and 3- and 12-month follow-up and analyzed using linear mixed regression models.
Results - The intervention had a minor negative effect on physical activity levels in boys at 12-month follow-up and short-term small-to-moderate positive effects on consumption of breakfast and fruit and vegetables, and sleep duration on school days.
Conclusions - In future, the lack of satisfactorily long-term effects might be better addressed using a combination of cognitive and behavioral approaches to more optimally integrate positive embodiment and lifestyle changes in the daily life of adolescents.