| Blood lactate and ammonia in short-term anaerobic work following induced alkalosis. | |
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MedLine Citation:
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PMID: 8775645 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study was designed to investigate the effect of an induced metabolic alkalosis on a 300 m sprinting time in six elite 400 m runners. The subjects competed as pairs, on two separate occasions, in a standard racing format, three hours after ingestion of either an alkaline (sodium citrate, 0.5 g.kg-1 body weight) or a placebo solution (calcium carbonate, 0.5 g.kg-1 body weight). The results showed that following alkaline ingestion mean sprinting time was not improved. Peak blood lactate during recovery was higher after sodium citrate administration than after placebo (19.88 +/- 2.09 vs 18.82 +/- 1.84 mmol.l-1, p < 0.01). No difference was observed in peak blood ammonia between the alkaline and placebo treatments (187.0 +/- 37.0 vs 188.8 +/- 49.0 mumol.l-1). The absence of effects on performance confirms that when exercise of short duration (30 to 40 s) is used, alkaline agents have minor or no effects on performance. The altered relationship observed between blood lactate and ammonia under placebo and buffering loading conditions suggests that the regulation of lactate and ammonia metabolism is unrelated. |
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Authors:
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J Ibanez; T Pullinen; E Gorostiaga; A Postigo; A Mero |
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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: The Journal of sports medicine and physical fitness Volume: 35 ISSN: 0022-4707 ISO Abbreviation: J Sports Med Phys Fitness Publication Date: 1995 Sep |
Date Detail:
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Created Date: 1996-12-06 Completed Date: 1996-12-06 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 0376337 Medline TA: J Sports Med Phys Fitness Country: ITALY |
Other Details:
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Languages: eng Pagination: 187-93 Citation Subset: IM |
Affiliation:
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Centro de Investigacion y Medicina del Deporte, Instituto Navarro de Deporte y Juventud, Gobierno de Navarra, Pamplona, Spain. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adult Alkalosis / blood* Ammonia / blood* Exercise / physiology* Humans Lactic Acid / blood* Male Running / physiology* |
| Chemical | |
Reg. No./Substance:
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50-21-5/Lactic Acid; 7664-41-7/Ammonia |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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