The effect of caffeine mouth rinse on self-paced cycling performance

Bottoms, Lindsay, Hurst, Howard Thomas orcid iconORCID: 0000-0001-7889-8592, Scriven, A, Lynch, F, Bolton, J, Vercoe, L., Shone, Z., Barry, G. and Sinclair, Jonathan Kenneth orcid iconORCID: 0000-0002-2231-3732 (2014) The effect of caffeine mouth rinse on self-paced cycling performance. Comparative Exercise Physiology, 10 (4). pp. 239-245. ISSN 1755-2540

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The aim of the study was to determine whether caffeine mouth rinse would improve 30 min self-paced cycling trial. Twelve healthy active males (age 20.5±0.7 years, mass 87.4±18.3 kg) volunteered for the study. They attended the laboratory on 3 separate occasions performing a 30 min self-paced cycling trial. On one occasion water was given as a mouth rinse for 5 s (PLA), on another occasion a 6.4% maltodextrin (CHO) solution was given for 5 s and finally a caffeine solution (containing 32 mg of caffeine dissolved in 125 ml water; CAF) was given for 5 s. Distance cycled, heart rate, ratings of perceived exertion, cadence, speed and power output were recorded throughout all trials. Distance cycled during the CAF mouth rinse trial (16.2±2.8 km) was significantly greater compared to PLA trial (14.9±2.6 km). There was no difference between CHO and CAF trials (P=0.89). Cadence, power and velocity were significantly greater during the CAF trial compared to both PLA and CHO (P<0.05). There were no differences between trials for heart rate and perceived exertion (P>0.05). Caffeine mouth rinse improves 30 min cycling performance by allowing the participant to increase cadence, power and velocity without a concurrent increase in perceived exertion and heart rate.

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