| Plasma lactate and glucose flushes following burst swimming in silver trevally (Pseudocaranx dentex: Carangidae) support the "releaser" hypothesis. | |
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MedLine Citation:
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PMID: 16459118 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Silver trevally (Pseudocaranx dentex) are highly athletic marine teleosts inhabiting the tropical waters of the Great Barrier Reef, Australia. Burst swimming increased plasma lactate from 1.6 +/- 0.4 S.D. to 21.6 +/- 3.3 mM (N = 6), among the highest values reported for functional hypoxia in fish. These data support the hypothesis that elite swimmers release lactate produced in the myotome into the circulation following anaerobic burst activity. The fish further developed a hyperglycaemic response to burst exercise with plasma glucose increasing from 6.6 +/- 2.0 to 13.2 +/- 2.3 mM (N = 6). Post-exercise erythrocyte swelling also occurred, but nucleoside triphosphate levels remained unaltered and do not provide a mechanism to modulate haemoglobin function during exercise. Metabolism of the blood cells appeared to be fuelled by both lactate and glucose. |
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Authors:
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R M G Wells; J Baldwin |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2006-02-03 |
Journal Detail:
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Title: Comparative biochemistry and physiology. Part A, Molecular & integrative physiology Volume: 143 ISSN: 1095-6433 ISO Abbreviation: Comp. Biochem. Physiol., Part A Mol. Integr. Physiol. Publication Date: 2006 Mar |
Date Detail:
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Created Date: 2006-02-28 Completed Date: 2006-05-04 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 9806096 Medline TA: Comp Biochem Physiol A Mol Integr Physiol Country: United States |
Other Details:
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Languages: eng Pagination: 347-52 Citation Subset: IM |
Affiliation:
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School of Biological Sciences, The University of Auckland, Private Bag 92019, Auckland, New Zealand. r.wells@auckland.ac.nz |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Anoxia / blood Blood Glucose / metabolism* Lactic Acid / blood* Muscles / physiology Perciformes / metabolism* Physical Exertion / physiology* Swimming / physiology |
| Chemical | |
Reg. No./Substance:
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0/Blood Glucose; 50-21-5/Lactic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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