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J Sci Med Sport. 2011 Mar;14(2):162-7. doi: 10.1016/j.jsams.2010.08.003. Epub 2010 Oct 6.

Effect of a carbohydrate mouth rinse on maximal sprint performance in competitive male cyclists.

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  • 1School of Sport Science, Exercise and Health, The University of Western Australia, Australia.


There is evidence that rinsing the mouth with a carbohydrate (CHO) solution can improve endurance performance. The goal of this study was to investigate whether a CHO mouth rinse can improve the performance of a maximal sprint effort. Fourteen competitive male cyclists (64.0±5.6 mL kg(-1) min(-1) (mean±SD)) each completed the following 5-s mouth rinse trials in a randomised counter-balanced order; (a) 6.4% maltodextrin solution [Mal], (b) 7.1% glucose solution [Glu], (c) water [Wa] and (d) a control trial with no rinse [Con]. Each participant then performed a 30-s maximal sprint effort on a cycle ergometer. Glu, Mal and Wa trials were not significantly different from Con across all indicators of sprint performance (maximal power output, mean power output over 0-30, 0-10, 10-20, and 20-30s), nausea or fatigue level (p>0.05). These findings suggest that the use of a 5-s mouth rinse with an isoenergetic amount of either maltodextrin or glucose is not beneficial for maximal sprint performance.

Copyright © 2010 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.

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