| Birthweight and aerobic fitness in adolescents: the Northern Ireland Young Hearts Project. | |
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MedLine Citation:
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PMID: 11781846 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to examine relationships between aerobic fitness and birthweight in adolescents. A representative cohort of 1015 males and females aged 12 and 15 y was studied, at baseline, with 89% of the 12-y-olds being re-examined 3 y later. The main outcome measures were an index of aerobic fitness, measured in laps completed at voluntary exhaustion by a twenty-metre shuttle run test, and recorded birthweight. Multiple linear regression, with and without adjustment for known and potential confounding variables, was performed to examine associations between fitness and birthweight. Birthweight and aerobic fitness were positively related so that for each kg decrease in birthweight, there was a mean (95% confidence interval) decrease in fitness score of 4.84 (0.35 to 9.33) laps and 3.21 (0.32 to 6.10) laps, in 12-y-old boys and girls respectively. This relationship is of a similar order to the strength of association between birthweight and adult blood pressure previously reported. Associations between birthweight and physical fitness at the age of 15 were weaker and were not significant. Our findings suggest that aerobic fitness may be involved in mediating the association between birthweight and cardiovascular disease risk later in life. The weakening of the association between birthweight and fitness between the ages of 12 and 15 y is similar to the weaker associations between birthweight and blood pressure seen among adolescents compared to younger children. We are currently re-examining this cohort to see if, as with blood pressure, the association with fitness re-emerges at an older age. |
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Authors:
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C A Boreham; L Murray; D Dedman; G Davey Smith; J M Savage; J J Strain |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Public health Volume: 115 ISSN: 0033-3506 ISO Abbreviation: Public Health Publication Date: 2001 Nov |
Date Detail:
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Created Date: 2002-01-08 Completed Date: 2002-01-31 Revised Date: 2009-11-03 |
Medline Journal Info:
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Nlm Unique ID: 0376507 Medline TA: Public Health Country: England |
Other Details:
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Languages: eng Pagination: 373-9 Citation Subset: IM |
Affiliation:
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Sports Studies, Faculty of Science, University of Ulster, Newtownabbey, Co Antrim, Northern Ireland, UK. ca.boreham@ulst.ac.uk |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Birth Weight* Child Cohort Studies Data Collection Exercise* Female Humans Male Northern Ireland / epidemiology Physical Fitness* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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