dc.contributor.author | Dalene, Knut Eirik | |
dc.contributor.author | Kolle, Elin | |
dc.contributor.author | Steene-Johannessen, Jostein | |
dc.contributor.author | Hansen, Bjørge Hermann | |
dc.contributor.author | Ekelund, Ulf | |
dc.contributor.author | Grydeland, May | |
dc.contributor.author | Anderssen, Sigmund Alfred | |
dc.contributor.author | Tarp, Jakob | |
dc.date.accessioned | 2022-09-29T12:54:05Z | |
dc.date.available | 2022-09-29T12:54:05Z | |
dc.date.created | 2022-08-02T10:09:48Z | |
dc.date.issued | 2022 | |
dc.identifier.citation | Dalene, K.E., Kolle, E., Steene-Johannessen, J., Hansen, B.H., Ekelund, U., Grydeland, M., Anderssen, S.A. & Tarp, J. (2022). Device-measured sedentary time in Norwegian children and adolescents in the era of ubiquitous internet access: secular changes between 2005, 2011 and 2018. International Journal of Epidemiology, 1-12. doi: | en_US |
dc.identifier.issn | 1464-3685 | |
dc.identifier.uri | https://hdl.handle.net/11250/3022563 | |
dc.description.abstract | Background: Access to screen-based media has been revolutionized during the past two decades. How this has affected sedentary time (ST) accumulation in children is poorly understood. Methods: This study, based on the Physical Activity among Norwegian Children Study (PANCS), uses accelerometer data from population-based samples of 9- and 15‐year-olds, collected in 2005 (n = 1722), 2011 (n = 1587) and 2018 (n = 1859). Secular changes between surveys were analysed using random-effects linear regression models adjusted for survey-specific factors. Data on ST were collected using hip-worn ActiGraphs and ST was defined using a threshold equivalent to <100 counts/min. Sedentary bouts were grouped by duration: <1, 1–5, 5–15, 15–30 and ≥30 min. Results: Between 2005 and 2018, ST increased by 29 min/day in 9-year-old boys (95% CI: 19, 39; P <0.001), by 21 min/day in 15-year-old boys (95% CI: 8, 34; P = 0.002) and by 22 min/day in 15-year-old girls (95% CI: 10, 35; P <0.001), but not in 9-year-old girls at 6 min/day (95% CI: -3, 16; P = 0.191). All age-sex groups accumulated less ST in bouts lasting <5 min and more ST in longer bouts, particularly in 5–15-min bouts. Adolescent girls also increased ST accumulation in 15–30-min and ≥30-min bouts. Changes were largely mirrored before, during and after school on weekdays and during weekend days. Conclusions: Coinciding with the introduction of smartphones, tablets and near-universal internet access, total daily ST and ST accumulated in prolonged sedentary bouts increased between 2005 and 2018 in children and adolescents. | en_US |
dc.description.abstract | Device-measured sedentary time in Norwegian children and adolescents in the era of ubiquitous internet access: secular changes between 2005, 2011 and 2018 | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Oxford University Press | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Device-measured sedentary time in Norwegian children and adolescents in the era of ubiquitous internet access: secular changes between 2005, 2011 and 2018 | en_US |
dc.title.alternative | Device-measured sedentary time in Norwegian children and adolescents in the era of ubiquitous internet access: secular changes between 2005, 2011 and 2018 | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © 2022 The Author(s) | en_US |
dc.subject.nsi | VDP::Medisinske Fag: 700::Helsefag: 800 | en_US |
dc.source.pagenumber | 1-12 | en_US |
dc.source.journal | International Journal of Epidemiology | en_US |
dc.identifier.doi | https://doi.org/10.1093/ije/dyac063 | |
dc.identifier.cristin | 2040558 | |
dc.relation.project | Norges forskningsråd: 249932/F20 | en_US |
dc.relation.project | Institutt for idrettsmedisinske fag, Norges Idrettshøgskole | en_US |
dc.description.localcode | Paid Open Access | |
cristin.qualitycode | 2 | |