Document Detail


Effects of oral lactate consumption on metabolism and exercise performance.
MedLine Citation:
PMID:  22777328     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Study of lactate metabolism has revealed that orally consumed lactate is used as an energy substrate either directly by oxidation or by conversion to glucose. Disposal of lactate by oxidation or gluconeogenesis consumes protons and can fortify blood bicarbonate levels temporarily and increase pH. These characteristics have led to investigations of lactate consumption as an energy substrate and as a buffering agent. Evidence has revealed no effects of lactate consumption on time to exhaustion during low- to moderate-intensity exercise, suggesting that it is ineffective as an energy supplement. Lactate ingestion has been shown to increase blood pH and bicarbonate levels and increase time to exhaustion in short, high-intensity work bouts. Future work should focus on determining optimal doses of lactate, temporal relationships between doses and exercise, and the efficacy of lactate as an ergogenic in different types of high-intensity exercise.
Authors:
Dave Morris
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Current sports medicine reports     Volume:  11     ISSN:  1537-8918     ISO Abbreviation:  Curr Sports Med Rep     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-07-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101134380     Medline TA:  Curr Sports Med Rep     Country:  United States    
Other Details:
Languages:  eng     Pagination:  185-8     Citation Subset:  IM    
Affiliation:
Department of Health, Leisure, and Exercise Science, Appalachian State University, Boone, NC.
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