| Cardiovascular adaptations in 8- to 12-year-old boys following a 14-week running program. | |
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MedLine Citation:
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PMID: 8081319 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study examined the effects of a 14-week running program on VO2max, as well as cardiac output (Q) and arterial-venous O2 difference (a-vO2 dif) at submaximal intensities corresponding to 50 and 75% of VO2max. Thirteen boys (mean age 10.6 +/- 1.2 yrs) served as experimental subjects while 13 other boys of similar age (mean age 10.2 +/- 1.2 yrs) served as controls. Mean VO2max in the runners increased 13%, from 44.2 +/- 7.0 to 49.9 +/- 6.3 ml.kg-1.min-1. Posttraining VO2 during submaximal and maximal exercise was significantly (p < 0.05) greater in the runners than in the controls. Q and SV exhibited an increase of 10% at each intensity, but posttraining differences between groups were not significant (p > 0.05). A-vO2 dif increased by 8% at 50% of VO2max and by 6% at 75% of VO2max, and was significantly greater in the runners following training. These results indicate that increases in submaximal relative VO2 in children are mediated by increases in a-vO2 dif and Q. |
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Authors:
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A D Mahon; P Vaccaro |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Canadian journal of applied physiology = Revue canadienne de physiologie appliquée Volume: 19 ISSN: 1066-7814 ISO Abbreviation: Can J Appl Physiol Publication Date: 1994 Jun |
Date Detail:
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Created Date: 1994-10-13 Completed Date: 1994-10-13 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 9306274 Medline TA: Can J Appl Physiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 139-50 Citation Subset: IM |
Affiliation:
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Exercise Science Laboratory, University of Maryland, College Park 20742. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adaptation, Physiological* Adolescent Cardiovascular Physiological Phenomena* Child Heart Rate Humans Male Oxygen Consumption Physical Endurance / physiology* Running / physiology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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