PMID- 24790476
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20140505
LR  - 20211021
IS  - 1303-2968 (Print)
IS  - 1303-2968 (Electronic)
IS  - 1303-2968 (Linking)
VI  - 13
IP  - 2
DP  - 2014 May
TI  - The Influence of Serial Carbohydrate Mouth Rinsing on Power Output during a Cycle 
      Sprint.
PG  - 252-8
AB  - The objective of the study was to investigate the influence of serial 
      administration of a carbohydrate (CHO) mouth rinse on performance, metabolic and 
      perceptual responses during a cycle sprint. Twelve physically active males (mean 
      (+/- SD) age: 23.1 (3.0) years, height: 1.83 (0.07) m, body mass (BM): 86.3 (13.5) 
      kg) completed the following mouth rinse trials in a randomized, counterbalanced, 
      double-blind fashion; 1. 8 x 5 second rinses with a 25 ml CHO (6% w/v 
      maltodextrin) solution, 2. 8 x 5 second rinses with a 25 ml placebo (PLA) 
      solution. Following mouth rinse administration, participants completed a 30 
      second sprint on a cycle ergometer against a 0.075 g.kg(-1) BM resistance. Eight 
      participants achieved a greater peak power output (PPO) in the CHO trial, 
      resulting in a significantly greater PPO compared with PLA (13.51 +/- 2.19 vs. 
      13.20 +/- 2.14 W.kg(-1), p < 0.05). Magnitude inference analysis reported a likely 
      benefit (81% likelihood) of the CHO mouth rinse on PPO. In the CHO trial, mean 
      power output (MPO) showed a trend for being greater in the first 5 seconds of the 
      sprint and lower for the remainder of the sprint compared with the PLA trial (p > 
      0.05). No significant between-trials difference was reported for fatigue index, 
      perceived exertion, arousal and nausea levels, or blood lactate and glucose 
      concentrations. Serial administration of a CHO mouth rinse may significantly 
      improve PPO during a cycle sprint. This improvement appears confined to the first 
      5 seconds of the sprint, and may come at a greater relative cost for the 
      remainder of the sprint. Key pointsThe paper demonstrates that repeated 
      administration of a carbohydrate mouth rinse can significantly improve peak power 
      output during a single 30 second cycle sprint.The ergogenic effect of the 
      carbohydrate mouth rinse may relate to the duration of exposure of the oral 
      cavity to the mouth rinse, and associated greater stimulation of oral 
      carbohydrate receptors.The significant increase in peak power output with the 
      carbohydrate mouth rinse may come at a relative cost for the remainder of the 
      sprint, evidenced by non-significantly lower mean power output and a greater 
      fatigue index in the carbohydrate vs. placebo trial.Serial administration of a 
      carbohydrate mouth rinse may be beneficial for sprint athletes as a method of 
      performance enhancement that minimizes the risk of performance decrement through 
      body mass increase and gastrointestinal disturbances associated with ingesting 
      carbohydrate solutions.
FAU - Phillips, Shaun M
AU  - Phillips SM
AD  - Abertay University, Division of Sport and Exercise Sciences, Dundee , Scotland, 
      UK.
FAU - Findlay, Scott
AU  - Findlay S
AD  - Abertay University, Division of Sport and Exercise Sciences, Dundee , Scotland, 
      UK.
FAU - Kavaliauskas, Mykolas
AU  - Kavaliauskas M
AD  - Abertay University, Division of Sport and Exercise Sciences, Dundee , Scotland, 
      UK.
FAU - Grant, Marie Clare
AU  - Grant MC
AD  - Abertay University, Division of Sport and Exercise Sciences, Dundee , Scotland, 
      UK.
LA  - eng
PT  - Journal Article
DEP - 20140501
PL  - Turkey
TA  - J Sports Sci Med
JT  - Journal of sports science & medicine
JID - 101174629
PMC - PMC3990876
OTO - NOTNLM
OT  - Anaerobic
OT  - exercise performance
OT  - exercise physiology
OT  - nutrition
OT  - physical performance
EDAT- 2014/05/03 06:00
MHDA- 2014/05/03 06:01
PMCR- 2014/05/01
CRDT- 2014/05/03 06:00
PHST- 2013/09/10 00:00 [received]
PHST- 2013/11/26 00:00 [accepted]
PHST- 2014/05/03 06:00 [entrez]
PHST- 2014/05/03 06:00 [pubmed]
PHST- 2014/05/03 06:01 [medline]
PHST- 2014/05/01 00:00 [pmc-release]
AID - jssm-13-252 [pii]
PST - epublish
SO  - J Sports Sci Med. 2014 May 1;13(2):252-8. eCollection 2014 May.