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The effect of a caffeinated mouth rinse on endurance cycling time trial performance

Citation

Doering, TM and Fell, JW and Leveritt, MD and Desbrow, B and Shing, CM, The effect of a caffeinated mouth rinse on endurance cycling time trial performance, International Journal of Sport Nutrition & Exercise Metabolism, 24, (1) pp. 90-97. ISSN 1526-484X (2014) [Refereed Article]


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Copyright Statement

Copyright 2014 Human Kinetics, Inc.

DOI: doi:10.1123/ijsnem.2013-0103

Abstract

The purpose of this study was to investigate if acute caffeine exposure via mouth-rinse improved endurance cycling time-trial performance in well-trained cyclists. It was hypothesized that caffeine exposure at the mouth would enhance endurance cycling time-trial performance. Ten well-trained male cyclists (mean± SD: 32.9 ± 7.5 years, 74.7 ± 5.3kg, 176.8 ± 5.1cm, VO2peak = 59.8 ± 3.5ml·kg–1·min–1) completed two experimental time- trials following 24 hr of dietary and exercise standardization. A randomized, double-blind, placebo-controlled, cross-over design was employed whereby cyclists completed a time-trial in the fastest time possible, which was equivalent work to cycling at 75% of peak aerobic power output for 60 min. Cyclists were administered 25ml mouth-rinses for 10 s containing either placebo or 35mg of anhydrous caffeine eight times throughout the time-trial. Perceptual and physiological variables were recorded throughout. No significant improvement in time-trial performance was observed with caffeine (3918 ± 243s) compared with placebo mouth-rinse (3940 ± 227s). No elevation in plasma caffeine was detected due to the mouth-rinse conditions. Caffeine mouth-rinse had no significant effect on rating of perceived exertion, heart rate, rate of oxygen consumption or blood lactate concentration. Eight exposures of a 35 mg dose of caffeine at the buccal cavity for 10s does not significantly enhance endurance cycling time-trial performance, nor does it elevate plasma caffeine concentration.

Item Details

Item Type:Refereed Article
Keywords:caffeine-naïve, cyclist, buccal, ergogenic aid
Research Division:Medical and Health Sciences
Research Group:Human Movement and Sports Science
Research Field:Exercise Physiology
Objective Division:Health
Objective Group:Specific Population Health (excl. Indigenous Health)
Objective Field:Specific Population Health (excl. Indigenous Health) not elsewhere classified
Author:Doering, TM (Mr Thomas Doering)
Author:Fell, JW (Associate Professor James Fell)
Author:Shing, CM (Dr Cecilia Kitic)
ID Code:85991
Year Published:2014
Web of Science® Times Cited:13
Deposited By:Health Sciences A
Deposited On:2013-08-19
Last Modified:2017-10-31
Downloads:0

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