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dc.contributor.authorSantos, Diana A
dc.contributor.authorMagalhães, João P.
dc.contributor.authorJúdice, Pedro B.
dc.contributor.authorCorreia, Ines R
dc.contributor.authorMinderico, Cláudia S.
dc.contributor.authorEkelund, Ulf
dc.contributor.authorSardinha, Luis B
dc.date.accessioned2020-03-19T14:35:06Z
dc.date.available2020-03-19T14:35:06Z
dc.date.created2019-05-14T18:24:26Z
dc.date.issued2019
dc.identifier.citationMedicine & Science in Sports & Exercise. 2019, 51(2), 323-329.en_US
dc.identifier.issn0195-9131
dc.identifier.urihttps://hdl.handle.net/11250/2647629
dc.descriptionI Brage finner du siste tekst-versjon av artikkelen, og den kan inneholde ubetydelige forskjeller fra forlagets pdf-versjon. Forlagets pdf-versjon finner du på lww.com / In Brage you'll find the final text version of the article, and it may contain insignificant differences from the journal's pdf version. The definitive version is available at lww.comen_US
dc.description.abstractPurpose: We aimed to examine the cross-sectional associations of patterns of sedentary time (ST) and moderate-to-vigorous physical activity (MVPA) with total fat mass index (FMI) and abdominal FMI (FMIabd) in children, and additionally, to analyze if cardiorespiratory fitness (CRF) mediated these associations. Methods: Fat mass index and FMIabd were assessed with dual-energy X-ray absorptiometry in 333 participants (172 girls) age 9 to 11 yr. MVPA, ST, breaks in ST per sedentary hour (BST/ST) and the number of daily sedentary bouts with various lengths (1–4, 5–9, 10–14, and Q15 min) were assessed with accelerometry and CRF using a maximal cycle test. Hayes_ PROCESS macro for SPSS was used for mediation analysis. Results: The number of shorter sedentary bouts (1–4 min) was inversely associated with FMI (A = j0.108), whereas longer sedentary bouts (5–9 min, A = 0.169; 10–14 min, A = 0.193; Q15 min, A = 0.377) had a positive association, independent of MVPA (P G 0.05). A similar trend was found for FMIabd. Moderateto-vigorous physical activity was negatively related to FMI (A = j0.029) and to FMIabd (A = j0.003). There were no main associations for ST and BST/ST (P 9 0.05). Cardiorespiratory fitness was inversely related to total and abdominal adiposity, and a large portion (40.9– 65.7%) of the associations of MVPA and sedentary bouts with both FMI and FMIabd were mediated by CRF. Conclusions: Time in MVPA and accumulating ST in shorter sedentary bouts is inversely related to adiposity. However, these associations may be mediated by CRF. Emphasis should be given to programs that target increases in MVPA, which may influence CRF while reducing sedentary recreational behaviors.en_US
dc.language.isoengen_US
dc.subjectbreaks in sedentary timeen_US
dc.subjectbouts of sedentary timeen_US
dc.subjectphysical activityen_US
dc.subjectcardiorespiratory fitnessen_US
dc.subjecttotal body faten_US
dc.subjectabdominal body faten_US
dc.titleFitness Mediates Activity and Sedentary Patterns Associations with Adiposity in Youthen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.source.pagenumber323-329en_US
dc.source.volume51en_US
dc.source.journalMedicine & Science in Sports & Exerciseen_US
dc.source.issue2en_US
dc.identifier.doi10.1249/MSS.0000000000001785
dc.identifier.cristin1697900
dc.description.localcodeSeksjon for idrettsmedisinske fag / Department of Sports Medicineen_US
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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