Reply to Li et al.: Comment on “Effects of Carbohydrate Mouth Rinse on Cycling Time Trial Performance: A Systematic Review and Meta-Analysis”

2019 ◽  
Vol 49 (5) ◽  
pp. 823-825 ◽  
Author(s):  
Cayque Brietzke ◽  
Paulo Estevão Franco-Alvarenga ◽  
Flávio Oliveira Pires
2018 ◽  
Vol 49 (1) ◽  
pp. 57-66 ◽  
Author(s):  
Cayque Brietzke ◽  
Paulo Estevão Franco-Alvarenga ◽  
Hélio José Coelho-Júnior ◽  
Rodrigo Silveira ◽  
Ricardo Yukio Asano ◽  
...  

2019 ◽  
Vol 49 (4) ◽  
pp. 645-645 ◽  
Author(s):  
Cayque Brietzke ◽  
Paulo Estevão Franco-Alvarenga ◽  
Hélio José Coelho-Júnior ◽  
Rodrigo Silveira ◽  
Ricardo Yukio Asano ◽  
...  

2019 ◽  
Vol 50 (3) ◽  
pp. 633-637
Author(s):  
Cayque Brietzke ◽  
Paulo Estevão Franco-Alvarenga ◽  
Márcio Fagundes Goethel ◽  
Tony Meireles Santos ◽  
Flávio Oliveira Pires

Author(s):  
Thomas M. Doering ◽  
James W. Fell ◽  
Michael D. Leveritt ◽  
Ben Desbrow ◽  
Cecilia M. Shing

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 timetrials 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.


Nutrients ◽  
2018 ◽  
Vol 10 (3) ◽  
pp. 342 ◽  
Author(s):  
Flávio O. Pires ◽  
Cayque Brietzke ◽  
Fabiano A. Pinheiro ◽  
Katherine Veras ◽  
Eugênia C. T. de Mattos ◽  
...  

2017 ◽  
Vol 49 (5S) ◽  
pp. 582
Author(s):  
Jonathan D. Youell ◽  
Shawn R. Simonson ◽  
Matthew E. Darnell ◽  
Scott A. Conger

2013 ◽  
Vol 38 (2) ◽  
pp. 134-139 ◽  
Author(s):  
Stephen C. Lane ◽  
Stephen R. Bird ◽  
Louise M. Burke ◽  
John A. Hawley

It is presently unclear whether the reported ergogenic effect of a carbohydrate (CHO) mouth rinse on cycling time-trial performance is affected by the acute nutritional status of an individual. Hence, the aim of this study was to investigate the effect of a CHO mouth rinse on a 60-min simulated cycling time-trial performance commenced in a fed or fasted state. Twelve competitive male cyclists each completed 4 experimental trials using a double-blinded Latin square design. Two trials were commenced 2 h after a meal that contained 2.5 g·kg−1 body mass of CHO (FED) and 2 after an overnight fast (FST). Prior to and after every 12.5% of total time during a performance ride, either a 10% maltodextrin (CHO) or a taste-matched placebo (PLB) solution was mouth rinsed for 10 s then immediately expectorated. There were significant main effects for both pre-ride nutritional status (FED vs. FST; p < 0.01) and CHO mouth rinse (CHO vs. PLB; p < 0.01) on power output with an interaction evident between the interventions (p < 0.05). The CHO mouth rinse improved mean power to a greater extent after an overnight fast (282 vs. 273 W, 3.4%; p < 0.01) compared with a fed state (286 vs. 281 W, 1.8%; p < 0.05). We concluded that a CHO mouth rinse improved performance to a greater extent in a fasted compared with a fed state; however, optimal performance was achieved in a fed state with the addition of a CHO mouth rinse.


Sign in / Sign up

Export Citation Format

Share Document