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dc.contributor.authorRidgway, C. L.
dc.contributor.authorBrage, Søren
dc.contributor.authorAnderssen, Sigmund A.
dc.contributor.authorSardinha, Luis B.
dc.contributor.authorAndersen, Lars Bo
dc.contributor.authorEkelund, Ulf
dc.date.accessioned2011-12-07T08:56:42Z
dc.date.available2011-12-07T08:56:42Z
dc.date.issued2011-06
dc.identifierSeksjon for idrettsmedisinske fag / Department of Sports Medicine
dc.identifier.citationInternational Journal of Pediatric Obesity. 2011, 6(2-2), e590-e596no_NO
dc.identifier.issn1747-7174
dc.identifier.issn1747-7166
dc.identifier.urihttp://hdl.handle.net/11250/170897
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 www.informahealthcare.com: http://dx.doi.org/10.3109/17477166.2010.526225 / 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 original publication is available at www.informahealthcare.com: http://dx.doi.org/10.3109/17477166.2010.526225no_NO
dc.description.abstractObjective: To investigate whether birth weight acts as a biological determinant of later aerobic fitness, and whether fat free mass may mediate this association. Methods: The European Youth Heart Study (EYHS) is a population based cohort of two age groups (10 and 15 years) from Denmark, Portugal, Estonia and Norway. Children with parentally reported birth weight >1.5kg were included (n=2,749). Data was collected on weight, height, and skin fold measures to estimate fat mass and fat free mass. Aerobic fitness (peak power, watts) was assessed using a maximal, progressive cycle ergometer test. Physical activity was collected in a subset (n=1,505) using a hipworn accelerometer and defined as total activity counts/wear time, all children with >600 minutes/day for 3 days of wear were included. Results: Lower birth weight was associated with lower aerobic fitness, after adjusting for sex, age group, country, sexual maturity and socio-economic status (ß=5.4, 95%CI 3.5, 7.3 W per 1kg increase in birth weight, p<0.001). When fat free mass was introduced as a covariate in the model, the association between birth weight and aerobic fitness was almost completely attenuated (p=0.7). Birth weight was also significantly associated with fat free mass (ß=1.4 95%CI 1.1, 1.8, p<0.001) and fat free mass was significantly associated with aerobic fitness (ß=3.6, 95%CI 3.4, 3.7, p<0.001). Further adjustment for physical activity did not alter the findings. Conclusion: Birth weight may have long-term influences on fat free mass and differences in fat free mass mediate the observed association between birth weight and aerobic fitness.no_NO
dc.language.isoengno_NO
dc.publisherTaylor & Francisno_NO
dc.subjectbirth weightno_NO
dc.subjectaerobic fitnessno_NO
dc.subjectbody compositionno_NO
dc.subjectfat-free massno_NO
dc.subjectyouthno_NO
dc.titleFat-free mass mediates the association between birth weight and aerobic fitness in youthno_NO
dc.typeJournal articleno_NO
dc.typePeer reviewedno_NO
dc.subject.nsiVDP::Medical disciplines: 700::Clinical medical disciplines: 750::Pediatrics: 760no_NO
dc.source.pagenumbere590-e596no_NO
dc.source.volume6no_NO
dc.source.journalInternational Journal of Pediatric Obesityno_NO
dc.source.issue2-2no_NO


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