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Do physical activity and aerobic fitness moderate the association between birth weight and metabolic risk in youth?: The European youth heart study
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2011 (English)In: Diabetes Care, ISSN 0149-5992, E-ISSN 1935-5548, Vol. 34, no 1, p. 187-192Article in journal (Refereed) Published
Abstract [en]

OBJECTIVE- Lower birth weight has been associated with a greater risk of metabolic diseases. The aim of this study was examine whether physical activity and aerobic fitness may modify associations between birth weigh and metabolic risk. RESEARCH DESIGN AND METHODS- The European Youth Heart Study is a population-based study of 9 and 15 year olds (n = 1,254). Birth weight was maternally reported. Skin fold measures were used to calculate body fat and fat mass index (FMI = fat mass [kilograms]/height(2)). Insulin was measured using fasting blood samples. Physical activity was measured using a hip-worn accelerometer (MTI Actigraph) for >600 min/day for >= 3 days and is expressed as "average activity" (counts per minute) and time spent in above moderate intensity activity (>2000 cpm). Aerobic fitness was assessed using a maximal cycle ergometry test (watts per kilogram fat-free mass). RESULTS- Higher birth weight was associated with higher FMI (beta = 0.49 [95% CI 0.21-0.80]; P = 0.001) and greater waist circumference (0.90 [0.32-1.47]; P < 0.001), adjusted for sex, age-group, sexual maturity, height, and socioeconomic status. Lower birth weight was associated with higher fasting insulin only after further adjustment for adolescent waist circumference and height (-0.059 [-0.107 to 0.011]; P = 0.016). There was no evidence for any modification of the associations after adjustment for physical activity or aerobic fitness. CONCLUSIONS- The present study did not find any evidence that physical activity or aerobic fitness can moderate the associations among higher birth weight and increased fat mass and greater waist circumference or between lower birth weight and insulin resistance in healthy children and adolescents.

Place, publisher, year, edition, pages
2011. Vol. 34, no 1, p. 187-192
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Sport and Fitness Sciences
Research subject
Sports Science
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URN: urn:nbn:se:oru:diva-18821DOI: 10.2337/dc10-1178ISI: 000286497000039OAI: oai:DiVA.org:oru-18821DiVA, id: diva2:444462
Available from: 2011-09-29 Created: 2011-09-29 Last updated: 2017-12-08Bibliographically approved

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Ekelund, Ulf

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