PMID- 23438223 OWN - NLM STAT- MEDLINE DCOM- 20130620 LR - 20220318 IS - 1715-5312 (Print) IS - 1715-5312 (Linking) VI - 38 IP - 2 DP - 2013 Feb TI - Effect of a carbohydrate mouth rinse on simulated cycling time-trial performance commenced in a fed or fasted state. PG - 134-9 LID - 10.1139/apnm-2012-0300 [doi] AB - 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. FAU - Lane, Stephen C AU - Lane SC AD - Exercise and Nutrition Research Group, School of Medical Sciences, RMIT University, Bundoora, VIC 3083, Australia. FAU - Bird, Stephen R AU - Bird SR FAU - Burke, Louise M AU - Burke LM FAU - Hawley, John A AU - Hawley JA LA - eng PT - Controlled Clinical Trial PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121126 PL - Canada TA - Appl Physiol Nutr Metab JT - Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme JID - 101264333 RN - 0 (Blood Glucose) RN - 0 (Carbohydrates) SB - IM MH - Adult MH - Athletic Performance/*physiology MH - Bicycling/*physiology MH - Blood Glucose MH - Carbohydrates/*administration & dosage MH - Cross-Over Studies MH - Double-Blind Method MH - Energy Metabolism/physiology MH - Food Deprivation MH - Humans MH - Male MH - Sports MH - Time Factors MH - Young Adult EDAT- 2013/02/27 06:00 MHDA- 2013/06/21 06:00 CRDT- 2013/02/27 06:00 PHST- 2013/02/27 06:00 [entrez] PHST- 2013/02/27 06:00 [pubmed] PHST- 2013/06/21 06:00 [medline] AID - 10.1139/apnm-2012-0300 [doi] PST - ppublish SO - Appl Physiol Nutr Metab. 2013 Feb;38(2):134-9. doi: 10.1139/apnm-2012-0300. Epub 2012 Nov 26.