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dc.contributor.authorAtkin, Andrew J.
dc.contributor.authorCorder, Kirsten
dc.contributor.authorEkelund, Ulf
dc.contributor.authorWijndaele, Katrien
dc.contributor.authorGriffin, Simon J.
dc.contributor.authorvan Sluijs, Esther M. F.
dc.date.accessioned2014-04-10T08:53:44Z
dc.date.available2014-04-10T08:53:44Z
dc.date.issued2013-06-28
dc.identifier.citationPLoS ONE. 2013, 8, e67627nb_NO
dc.identifier.urihttp://hdl.handle.net/11250/194220
dc.description© 2013 Atkin et al.nb_NO
dc.description.abstractBackground: Understanding the determinants of sedentary time during childhood contributes to the development of effective intervention programmes. Purpose: To examine family and home-environmental determinants of 1-year change in objectively measured sedentary time after-school and at the weekend. Methods: Participants wore accelerometers at baseline and 1 year later. Longitudinal data for after-school and weekend analyses were available for 854 (41.5%male, mean±SD age 10.2±0.3years) and 718 (41.8%male, age 10.2±0.3years) participants. Information on 26 candidate determinants, including socioeconomic status (SES), availability of electronic media and parental rules for sedentary behaviours was self-reported by children or their parents at baseline. Change in the proportion of registered time spent sedentary was used as the outcome variable in multi-level linear regression models, adjusted for age, sex, body mass index and baseline sedentary time. Simple and multiple models were run and interactions with sex explored. Results: Children from higher socioeconomic status families exhibited greater increases in after-school (beta; 95% CI for change in % time spent sedentary 1.02; 0.37, 1.66) and weekend (1.42; 0.65, 2.18) sedentary time. Smaller increases in after-school sedentary time were observed in children with more siblings (−1.00; −1.69, −0.30), greater availability of electronic media (−0.81; −1.29, −0.33) and, for boys, more frequent family visits to the park (−1.89; −3.28, −0.51) and family participation in sport (−1.28; −2.54, −0.02). Greater maternal weekend screen-time (0.45; 0.08, 0.83) and, in girls, greater parental restriction on playing outside (0.91; 0.08, 1.74) were associated with larger increases in weekend sedentary time. The analytical sample was younger, more likely to be female, had lower BMI and was of higher SES than the original baseline sample. Conclusions: Intervention strategies aimed at reducing parents’ weekend screen-time, increasing family participation in sports or recreation (boys) and promoting freedom to play outside (girls) may contribute towards preventing the age-related increase in sedentary time.nb_NO
dc.language.isoengnb_NO
dc.publisherPLoS.orgnb_NO
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Basale biofag: 470nb_NO
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Landbruksfag: 910nb_NO
dc.subjectaccelerometersnb_NO
dc.subjectbehaviornb_NO
dc.subjectchildrennb_NO
dc.subjectcomputersnb_NO
dc.subjectelectronicsnb_NO
dc.subjectschoolsnb_NO
dc.subjectsocial stratificationnb_NO
dc.subjecttime measurementnb_NO
dc.titleDeterminants of Change in Children's Sedentary Timenb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalPLoS ONEnb_NO
dc.identifier.doi10.1371/journal.pone.0067627
dc.description.localcodeSeksjon for idrettsmedisinske fag / Department of Sports Medicinenb_NO


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