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dc.contributor.authorHeradstveit, Ove
dc.contributor.authorHolmelid, Eva
dc.contributor.authorKlundby, Helene
dc.contributor.authorSøreide, Birgitte
dc.contributor.authorSivertsen, Børge
dc.contributor.authorSand, Liv
dc.identifier.citationHeradstveit, O., Holmelid, E., Klundby, H. et al. (2019) Associations between symptoms of eating disturbance and frequency of physical activity in a non-clinical, population-based sample of adolescentsJournal of Eating Disorders, 7.en_US
dc.description.abstractBackground Physical activity is an important factor related to eating disorders, but the relationship between symptoms of eating disorders and physical activity is multifaceted. The aims of this study were to investigate how symptoms of eating disturbance (ED) were associated with physical activity, and to explore potential sex differences and the potential moderating effects from body mass index (BMI) scores. Methods Data stem from a large population-based survey of 10,172 Norwegian adolescents aged 16 to 19 years, the youth@hordaland-survey. The main dependent variable was self-reported number of days with physical activity per week, while the main independent variable was self-reported symptoms of ED using the five-item Eating Disturbance Screening (EDS-5) questionnaire. Control variables included sex, age, socioeconomic status, and BMI. Results Girls reported substantially more symptoms of ED compared with boys (M = 3.02 versus 1.32, d = 0.80, p < 0.001), as well as fewer days with physical activity per week (M = 2.88 versus 3.46, d = − 0.28, p < 0.001). For both sexes, symptoms of ED were negatively associated with physical activity (adjusted mean differences (adj. mean diff) ranging from − 0.03 to − 0.08, all p < 0.05). Interaction analyses showed, however, that associations between symptoms of ED and physical activity were significantly moderated by BMI scores for both girls (p < 0.01) and boys (p < 0.05). Specifically, ED symptoms were associated with lower physical activity levels among adolescents with higher BMI scores. Conclusions The present study indicates that symptoms of ED were overall negatively associated with physical activity for both sexes during adolescence. However, associations between ED symptoms and physical activity levels differed considerably across the weight spectrum.en_US
dc.publisherBioMed Centralen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.subjectfysisk aktiviteten_US
dc.titleAssociations between symptoms of eating disturbance and frequency of physical activity in a non-clinical, population-based sample of adolescentsen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.rights.holder© The Author(s). 2019en_US
dc.subject.nsiVDP::Medical disciplines: 700::Clinical medical disciplines: 750en_US
dc.source.journalJournal of Eating Disordersen_US
cristin.unitnameDet helsevitenskapelige fakultet

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