Journal ArticleDOI
Effect of different protocols of caffeine intake on metabolism and endurance performance
Gregory R. Cox,Ben Desbrow,Paul G. Montgomery,Megan E. Anderson,Clinton R. Bruce,Theodore A. Macrides,David T. Martin,Angela Moquin,Alan D. Roberts,John A. Hawley,Louise M. Burke +10 more
TLDR
Overall, 6 mg/kg caffeine enhanced TT performance independent of timing of intake and replacing sports drink with Coca-Cola during the latter stages of exercise was equally effective in enhancing endurance performance.Abstract:
Competitive athletes completed two studies of 2-h steady-state (SS) cycling at 70% peak O2uptake followed by 7 kJ/kg time trial (TT) with carbohydrate (CHO) intake before (2 g/kg) and during (6% CH...read more
Citations
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Journal ArticleDOI
International society of sports nutrition position stand: caffeine and performance
Erica R. Goldstein,Tim N. Ziegenfuss,Doug Kalman,Richard B. Kreider,Bill Campbell,Colin D. Wilborn,Lucas Taylor,Darryn S. Willoughby,Jeffrey R. Stout,B. Sue Graves,Robert Wildman,John L. Ivy,Marie Spano,Abbie E Smith,Jose Antonio +14 more
TL;DR: The scientific literature does not support caffeine-induced diuresis during exercise, or any harmful change in fluid balance that would negatively affect performance, and the literature is equivocal when considering the effects of caffeine supplementation on strength-power performance.
Medicine & Science in sports & Exercise
Jeanette M. López Walle,Isabel Balaguer Solá,Isabel Castillo Fernádez,José Leandro Tristán Rodríguez +3 more
Journal ArticleDOI
Fluid and fuel intake during exercise
TL;DR: The amounts of water, carbohydrate and salt that athletes are advised to ingest during exercise are based upon their effectiveness in attenuating both fatigue as well as illness due to hyperthermia, dehydration or hyperhydration.
Journal ArticleDOI
Effects of caffeine ingestion on rating of perceived exertion during and after exercise: a meta-analysis.
M. Doherty,P. M. Smith +1 more
TL;DR: Regression analysis revealed that RPE obtained during exercise could account for ∼29% of the variance in the improvement in exercise performance and this may partly explain the subsequent ergogenic effects of caffeine on performance.
Journal ArticleDOI
A review of caffeine's effects on cognitive, physical and occupational performance.
TL;DR: Repeated administration of caffeine is an effective strategy to maintain physical and cognitive capabilities, since most real-world activities require complex decision making, motor processing and movement.
References
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Journal Article
Table of nonprotein respiratory quotient: an update.
TL;DR: The purpose of this paper is to point out some limits and inconsistencies in the table of nonprotein respiratory quotient that is universally used, developed by Lusk in 1924, which was derived from biochemical and physical data that are now outdated.
Journal ArticleDOI
A new validated endurance performance test.
TL;DR: In this paper, the reproducibility of three different endurance performance tests was evaluated and it was concluded that reproducability of a test at 75% Wmax until exhaustion is poor and these tests are not reliable.
Journal Article
Effects of caffeine ingestion on metabolism and exercise performance.
TL;DR: The enhanced endurance performance observed in the C Trial was likely the combined effects of caffeine on lipolysis and its positive influence on nerve impulse transmission.
Journal ArticleDOI
Metabolic, catecholamine, and exercise performance responses to various doses of caffeine
TL;DR: The results are not compatible with the traditional theory that caffeine mediates its ergogenic effect via enhanced catecholamines, and only the highest dose of caffeine resulted in increases in glycerol and free fatty acids.
Journal ArticleDOI
Peak power output predicts maximal oxygen uptake and performance time in trained cyclists.
John A. Hawley,Timothy D. Noakes +1 more
TL;DR: It is concluded that for trained cyclists, theVO2max can be accurately predicted from Wpeak, and that Wpeak is a valid predictor of 20-km cycle time.
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Metabolic, catecholamine, and exercise performance responses to various doses of caffeine
Effects of caffeine ingestion on rating of perceived exertion during and after exercise: a meta-analysis.
M. Doherty,P. M. Smith +1 more