| Physiological and performance effects of glycerol hyperhydration and rehydration. | |
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MedLine Citation:
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PMID: 19941615 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Studies have shown that beverages containing glycerol can enhance and maintain hydration status and may improve endurance exercise performance by attenuating adverse physiological changes associated with dehydration. Improvements to performance include increased endurance time to exhaustion by up to 24%, or a 5% increase in power or work. However, some studies have found no performance benefits during either prolonged exercise or specific skill and agility tests. In studies that have shown benefits, the improvements have been associated with thermoregulatory and cardiovascular changes. These include increased plasma volume and sweat rates, as well as reduced core temperature and ratings of perceived exertion. In a very small number of subjects, glycerol consumption has been associated with side-effects including nausea, gastrointestinal discomfort, dizziness, and headaches. In summary, while glycerol and fluid ingestion results in hyperhydration, the documented benefits to exercise performance remain inconsistent. |
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Authors:
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Simon P van Rosendal; Mark A Osborne; Robert G Fassett; Jeff S Coombes |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Review |
Journal Detail:
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Title: Nutrition reviews Volume: 67 ISSN: 1753-4887 ISO Abbreviation: Nutr. Rev. Publication Date: 2009 Dec |
Date Detail:
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Created Date: 2009-11-27 Completed Date: 2010-02-11 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0376405 Medline TA: Nutr Rev Country: United States |
Other Details:
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Languages: eng Pagination: 690-705 Citation Subset: IM |
Affiliation:
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The University of Queensland, School of Human Movement Studies, Brisbane, Queensland, Australia. svanrosendal@hms.uq.edu.au |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Body Temperature Regulation
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drug effects,
physiology Body Water / metabolism, physiology Dehydration / metabolism Glycerol / adverse effects, pharmacology* Humans Physical Endurance / drug effects*, physiology Water-Electrolyte Balance* / drug effects, physiology |
| Chemical | |
Reg. No./Substance:
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56-81-5/Glycerol |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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