Document Detail

Mouth rinse but not ingestion of a carbohydrate solution improves 1-h cycle time trial performance.
MedLine Citation:
PMID:  19000099     Owner:  NLM     Status:  MEDLINE    
The aim of the present study was to further explore the influence of ingestion and mouth rinse with a carbohydrate-electrolyte solution (CES) on the performance during a approximately 1 h high-intensity time trial on trained subjects. Subjects rinsed around the mouth or ingested a 6% isotonic CES or placebo (14 mL/kg body weight) before and throughout a time trial in which they had to accomplish a set amount of work (975+/-85 kJ) as quickly as possible. In the mouth rinse conditions, time to complete the test was shorter (P=0.02) with CES (61.7+/-5.1 min) than with placebo (64.1+/-6.5 min), whereas in the ingestion conditions, there was no difference between placebo (62.5+/-6.9 min) and CES (63.2+/-6.9 min). Although power output and lactate concentration during exercise were significantly higher when subjects rinsed their mouth with CES compared with placebo, the rating of perceived exertion values did not differ. Blood glucose concentration increased after ingestion of but not after mouth rinse with CES. The interesting finding of the present study is that rinsing the mouth with but not ingestion of CES resulted in improved performance.
A Pottier; J Bouckaert; W Gilis; T Roels; W Derave
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Scandinavian journal of medicine & science in sports     Volume:  20     ISSN:  1600-0838     ISO Abbreviation:  Scand J Med Sci Sports     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-05-21     Completed Date:  2010-09-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9111504     Medline TA:  Scand J Med Sci Sports     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  105-11     Citation Subset:  IM    
Department of Movement and Sports Sciences, Ghent University, Ghent, Belgium.
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MeSH Terms
Athletic Performance / physiology
Dietary Carbohydrates / pharmacology*
Double-Blind Method
Exercise / physiology*
Exercise Test / drug effects*
Glucose / administration & dosage
Monosaccharides / administration & dosage
Mouth / physiology
Mouthwashes* / pharmacology
Oxygen Consumption / physiology
Sucrose / administration & dosage
Sweetening Agents / administration & dosage
Time Factors
Reg. No./Substance:
0/Dietary Carbohydrates; 0/Monosaccharides; 0/Mouthwashes; 0/Sweetening Agents; 50-99-7/Glucose; 57-50-1/Sucrose

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