| Effects of prior warm-up regime on severe-intensity cycling performance. | |
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MedLine Citation:
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PMID: 15870639 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: The purpose of the present study was to determine the effect of three different warm-up regimes on cycling work output during a 7-min performance trial. METHODS: After habituation to the experimental methods, 12 well-trained cyclists completed a series of 7-min performance trials, involving 2 min of constant-work rate exercise at approximately 90% VO2max and a further 5 min during which subjects attempted to maximize power output. This trial was performed without prior intervention and 10 min after bouts of moderate, heavy, or sprint exercise in a random order. Pulmonary gas exchange was measured breath by breath during all performance trials. RESULTS: At the onset of the performance trial, baseline blood [lactate] was significantly elevated after heavy and sprint but not moderate exercise (mean +/- SD: control, 1.0 +/- 0.3 mM; moderate, 1.0 +/- 0.2 mM; heavy, 3.0 +/- 1.1 mM; sprint, 5.9 +/- 1.5 mM). All three interventions significantly increased the amplitude of the primary VO2 response (control, 2.59 +/- 0.28 L x min(-1); moderate, 2.69 +/- 0.27 L x min(-1); heavy, 2.78 +/- 0.26 L x min(-1); sprint, 2.78 +/- 0.30 L x min(-1)). Mean power output was significantly increased by prior moderate and heavy exercise but not significantly reduced after sprint exercise (control, 330 +/- 42 W; moderate, 338 +/- 39 W; heavy, 339 +/- 42 W; sprint, 324 +/- 45 W).Conclusions: These data indicate that priming exercise performed in the moderate- and heavy-intensity domains can improve severe-intensity cycling performance by ~2-3%, the latter condition doing so despite a mild lactacidosis being present at exercise onset. |
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Authors:
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Mark Burnley; Jonathan H Doust; Andrew M Jones |
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Publication Detail:
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Type: Clinical Trial; Journal Article; Randomized Controlled Trial |
Journal Detail:
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Title: Medicine and science in sports and exercise Volume: 37 ISSN: 0195-9131 ISO Abbreviation: Med Sci Sports Exerc Publication Date: 2005 May |
Date Detail:
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Created Date: 2005-05-04 Completed Date: 2005-09-08 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8005433 Medline TA: Med Sci Sports Exerc Country: United States |
Other Details:
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Languages: eng Pagination: 838-45 Citation Subset: IM; S |
Affiliation:
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Department of Sport and Exercise Science, University of Wales, Aberystwyth, Ceredigion, United Kingdom. mhb@aber.ac.uk |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Exercise Test* Humans Lactic Acid / blood Muscle, Skeletal / physiology Oxygen Consumption / physiology Physical Education and Training / methods* Pulmonary Gas Exchange / physiology |
| Chemical | |
Reg. No./Substance:
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50-21-5/Lactic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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