| Importance of proper scaling of aerobic power when relating to cardiometabolic risk factors in children. | |
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MedLine Citation:
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PMID: 21749316 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Background: The relationship between cardiometabolic risk factors (CMRF) and aerobic power (VO(2max)) scaled as mL O(2) per kilogram body mass is controversial because mass includes both fat and fat-free mass, and fat mass is independently associated with the CMRF. Aim: To examine common units used to scale VO(2max) and their relationships to mean blood pressure (MBP), total cholesterol (TC), HDL cholesterol, triglycerides (TG), insulin resistance (HOMA-IR) and cumulative risk score (z-score). Subjects: 1784, 8?18 year-old youths, 938 girls and 886 boys. Methods: Fasting blood samples were obtained. VO(2max) was estimated in mL/min from cycle ergometry and scaled to body mass (kg), fat free mass (kg(FFM)), body surface area (m(2)), height (cm) and allometric (mL/kg(0.67)/min). Results: Unadjusted correlations between CMRF and many of the scaled VO(2max) units were significant (p?<?0.0001), especially for MBP, HOMA-IR, HDL and z-score, with lower correlations for TC and TG. After adjusting for ancestry, sex, height and body fat associations were greatly weakened (r?<?0.09), except for MBP. Conclusions: On a population basis, the physical characteristics of the child, especially body fat, are more related to CMRF than any scaled units of VO(2max); thus care is needed when relating fitness and health issues. |
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Authors:
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Robert G McMurray; Peter A Hosick; Anna Bugge |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-7-13 |
Journal Detail:
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Title: Annals of human biology Volume: - ISSN: 1464-5033 ISO Abbreviation: - Publication Date: 2011 Jul |
Date Detail:
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Created Date: 2011-7-13 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0404024 Medline TA: Ann Hum Biol Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Department of Exercise and Sport Science, University of North Carolina , Chapel Hill, NC , USA. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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