Document Detail

Caffeine ingestion attenuates the VO(2) slow component during intense exercise.
MedLine Citation:
PMID:  11846968     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to analyze the effects of caffeine ingestion on the slow component of oxygen uptake (DeltaVO(2)) during high-intensity endurance exercise. Nine subjects (8 male and 1 female; age: 21 +/- 1 years; VO(2 max): 57.9 +/- 1.5 ml kg(-1) min(-1)) performed two 9-min tests on a treadmill at a running velocity eliciting 90% of their VO(2 max), 60 min after ingesting either a placebo capsule (PLAC) or a capsule containing a caffeine dose of 5 mg (kg body mass)(-1) [CAFF]. The mean values of DeltaVO(2) were significantly lower in CAFF than in PLAC (83 +/- 31 ml min(-1) vs. 167 +/- 26 ml min(-1), respectively; p < 0.05). These findings suggest that the ergogenic effect of caffeine in a high-intensity endurance exercise shown in previous research may be partly mediated by a possible attenuation of the VO(2) slow component.
A Santalla; A Lucía; M Pérez
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Publication Detail:
Type:  Clinical Trial; Controlled Clinical Trial; Journal Article    
Journal Detail:
Title:  The Japanese journal of physiology     Volume:  51     ISSN:  0021-521X     ISO Abbreviation:  Jpn. J. Physiol.     Publication Date:  2001 Dec 
Date Detail:
Created Date:  2002-03-07     Completed Date:  2002-05-09     Revised Date:  2007-03-21    
Medline Journal Info:
Nlm Unique ID:  2985184R     Medline TA:  Jpn J Physiol     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  761-4     Citation Subset:  IM    
Departamento de Ciencias Morfológicas y Fisiología, Universidad Europea de Madrid, Madrid, Spain.
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MeSH Terms
Caffeine / administration & dosage*
Central Nervous System Stimulants / administration & dosage*
Exercise / physiology*
Oxygen Consumption / drug effects*
Physical Endurance / drug effects*
Pulmonary Gas Exchange / drug effects
Reg. No./Substance:
0/Central Nervous System Stimulants; 58-08-2/Caffeine

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