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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: | Health Sciences |
| Research Group: | Sports science and exercise |
| 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 |
| UTAS Author: | Doering, TM (Mr Thomas Doering) |
| UTAS Author: | Fell, JW (Associate Professor James Fell) |
| UTAS Author: | Shing, CM (Dr Cecilia Kitic) |
| ID Code: | 85991 |
| Year Published: | 2014 |
| Web of Science® Times Cited: | 36 |
| Deposited By: | Health Sciences A |
| Deposited On: | 2013-08-19 |
| Last Modified: | 2017-10-31 |
| Downloads: | 0 |
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