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Physiological and performance effects of glycerol hyperhydration and rehydration.
Nutr Rev. 2009 Dec; 67(12):690-705.NR

Abstract

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.

Authors+Show Affiliations

The University of Queensland, School of Human Movement Studies, Brisbane, Queensland, Australia. svanrosendal@hms.uq.edu.auNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't
Review

Language

eng

PubMed ID

19941615

Citation

van Rosendal, Simon P., et al. "Physiological and Performance Effects of Glycerol Hyperhydration and Rehydration." Nutrition Reviews, vol. 67, no. 12, 2009, pp. 690-705.
van Rosendal SP, Osborne MA, Fassett RG, et al. Physiological and performance effects of glycerol hyperhydration and rehydration. Nutr Rev. 2009;67(12):690-705.
van Rosendal, S. P., Osborne, M. A., Fassett, R. G., & Coombes, J. S. (2009). Physiological and performance effects of glycerol hyperhydration and rehydration. Nutrition Reviews, 67(12), 690-705. https://doi.org/10.1111/j.1753-4887.2009.00254.x
van Rosendal SP, et al. Physiological and Performance Effects of Glycerol Hyperhydration and Rehydration. Nutr Rev. 2009;67(12):690-705. PubMed PMID: 19941615.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Physiological and performance effects of glycerol hyperhydration and rehydration. AU - van Rosendal,Simon P, AU - Osborne,Mark A, AU - Fassett,Robert G, AU - Coombes,Jeff S, PY - 2009/11/28/entrez PY - 2009/11/28/pubmed PY - 2010/2/12/medline SP - 690 EP - 705 JF - Nutrition reviews JO - Nutr. Rev. VL - 67 IS - 12 N2 - 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. SN - 1753-4887 UR - https://www.unboundmedicine.com/medline/citation/19941615/Physiological_and_performance_effects_of_glycerol_hyperhydration_and_rehydration_ L2 - https://academic.oup.com/nutritionreviews/article-lookup/doi/10.1111/j.1753-4887.2009.00254.x DB - PRIME DP - Unbound Medicine ER -