| Associations between sports participation, cardiorespiratory fitness and adiposity in young adult twins. | |
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MedLine Citation:
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PMID: 21193564 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Exercise behavior, cardiorespiratory fitness and obesity are strongly influenced by genetic factors. By studying young adult twins, we examined to what extent these interrelated traits have shared genetic and environmental etiologies. We studied 304 twin individuals selected from the population-based FinnTwin16 study. Physical activity was assessed with the Baecke questionnaire, yielding three indices: sport index, leisure-time index and work index. In this study we focused on sport index, which describes sports participation. Body composition was determined using DEXA and cardiorespiratory fitness using a bicycle ergometer exercise test with gas exchange analysis. The Baecke sport index was associated with high maximal oxygen uptake adjusted for lean body mass (VO(2)max[adj]) (r=0.40), with low body fat percentage (BF%) (r=-0.44) and low waist circumference (WC) (r=-0.29). Heritability estimates for the key traits were as follows: 56% for sport index, 71% for VO2max[adj], 77% for BMI, 66% for WC and 68% for BF%. The association between sport index and VO2max was mostly explained by genetic factors (70%), as were both the association between sport index and BF% (71%) and that between sport index and WC (59%). Our results suggest that genetic factors explain a considerable part of the associations between sports participation, cardiorespiratory fitness and obesity. |
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Authors:
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Linda Mustelin; Antti Latvala; Kirsi H Pietiläinen; Päivi Piirilä; Anssi Raimo A Sovijarvi; Urho M Kujala; Aila Rissanen; Jaakko Kaprio |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2010-12-30 |
Journal Detail:
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Title: Journal of applied physiology (Bethesda, Md. : 1985) Volume: - ISSN: 1522-1601 ISO Abbreviation: - Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2011-1-3 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8502536 Medline TA: J Appl Physiol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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1University of Helsinki. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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