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Carbohydrate mouth rinse

Mark Germaine, Kieran Collins, Marcus Shortall
The aim of the current study was to investigate whether carbohydrate mouth rinsing works synergistically with caffeine to augment high-intensity running in a fed state. Eight participants completed a total of three trials; (1) placebo (PLA) trial (placebo capsule + placebo mouth rinse), (2) caffeine (CAF) trial (400 mg caffeine + placebo mouth rinse) and (3) carbohydrate mouth rinse + caffeine (CMR + CAF) trial (400 mg caffeine + 6% carbohydrate mouth rinse). Each trial consisted of a 45 min steady-state run at 65% VO2max , followed by 90% VO2max high-intensity intervals (HIIT) at 1 min and subsequently by a 1 min recovery walking at 6 km·h-1 , until exhaustion...
March 14, 2019: Sports
Cayque Brietzke, Paulo Estevão Franco-Alvarenga, Hélio José Coelho-Júnior, Rodrigo Silveira, Ricardo Yukio Asano, Flávio Oliveira Pires
Section 3.2, Fig. 2: The wording on the x-axis which previously read.
February 22, 2019: Sports Medicine
Louise M Burke, Asker E Jeukendrup, Andrew M Jones, Martin Mooses
Distance events in Athletics include cross country, the 10,000 m track race, half marathon and marathon road races, and 20 and 50 km race walking events, over different terrain and environmental conditions. Race times for elite performers span ~26 min to >4 h, with key factors for success being a high aerobic power, the ability to exercise at a large fraction of this power, and high economy of movement. Nutrition-related contributors include body mass and anthropometry, capacity to use fuels, particularly carbohydrate (CHO) to produce ATP economically over the duration of the event, and maintenance of reasonable hydration status in the face of sweat losses induced by exercise intensity and the environment...
February 12, 2019: International Journal of Sport Nutrition and Exercise Metabolism
Luana T Rossato, Camila T M Fernandes, Públio F Vieira, Flávia M S de Branco, Paula C Nahas, Guilherme M Puga, Erick P de Oliveira
BACKGROUND: Carbohydrate (CHO) mouth rinse has been used as an ergogenic strategy due to its central effect; however, the effects of this intervention in short and high-intensity exercises are not fully understood. PURPOSE: We aimed to investigate the effect of CHO mouth rinse on time to exhaustion in a short and high-intensity exercise performed on a treadmill. METHODS: A randomized double-blind, placebo-controlled, and crossover study was conducted with 10 (24...
January 31, 2019: International Journal of Sports Physiology and Performance
Stephen P Bailey, Julie Hibbard, Darrin La Forge, Madison Mitchell, Bart Roelands, G Keith Harris, Stephen Folger
PURPOSE: The purpose of this investigation is to determine the effects of different forms of a CHO MR on quadriceps muscle performance and corticospinal motor excitability. METHODS: Ten subjects (5 females, 5 males; 25±1 years; 1.71±0.03 m 73±5 kg) completed 4 trials. A different MR condition was applied during each trial (Placebo (PLA), 6.4% glucose (GLU), 6.4% maltose (MAL), 6.4% maltodextrin (MDX)). Maximal voluntary contraction (MVIC) of the right quadriceps and motor-evoked potential (MEP) of the right rectus femoris was determined pre (10 min), immediately after, and post (10 min) MR...
January 24, 2019: International Journal of Sports Physiology and Performance
Cayque Brietzke, Paulo Estevão Franco-Alvarenga, Hélio José Coelho-Júnior, Rodrigo Silveira, Ricardo Yukio Asano, Flávio Oliveira Pires
BACKGROUND: Despite the growing number of studies reporting carbohydrate mouth rinse effects on endurance performance, no systematic and meta-analysis review has been conducted to elucidate the level of evidence of carbohydrate mouth rinse effects on cycling trial performance such as time-, work-, and distance-based trials. OBJECTIVES: The objective of this study were to establish the effect of a carbohydrate mouth rinse on cycling performance outcomes such as mean power output and time to complete a trial, together with the risk of bias in the cycling-carbohydrate mouth rinse literature...
November 29, 2018: Sports Medicine
Anissa Cherif, Romain Meeusen, Joong Ryu, Lee Taylor, Abdulaziz Farooq, Karim Kammoun, Mohamed Amine Fenneni, Abdul Rashid Aziz, Bart Roelands, Karim Chamari
To determine the effect of carbohydrate mouth rinsing (CHO-MR) on physical and cognitive performance during repeated-sprints (RS) after 3 days of intermittent fasting (abstaining from food and fluid 14 h per day). In a randomized and counter-balanced manner 15 active healthy males in a fasted state performed a RS-protocol [RSP; 2 sets (SET1 and SET2) of 5×5 s maximal sprints, with each sprint interspersed with 25 s rest and 3 min of recovery between SET1 and SET2] on an instrumented non-motorized treadmill with embedded force sensors under three conditions: i) Control (CON; no-MR), ii) Placebo-MR (PLA-MR; 0% maltodextrin) and iii) CHO-MR (10% maltodextrin)...
September 2018: Biology of Sport
Garet W Simpson, Robert Pritchett, Eric O'Neal, Garrett Hoskins, Kelly Pritchett
Multiple investigations have confirmed carbohydrate mouth rinse (CMR) enhances high intensity endurance performance lasting under 1 hour, but the effects of CMR on high intensity intermittent exercise has received less attention. This study examined the effect of CMR on high intensity multiple sprint performances in a protocol designed to emulate a cyclocross or mountain biking event. Seven trained men (28.2 ± 6.8 years, 185 ± 9 cm, 85.3 ± 14.8 kg, VO2 peak 51.4 ± 7.3 ml/kg*min-1) completed two, 48 min high intensity intermittent cycling protocols that consisted of 6 bouts of 5 min cycling at 50% VO2 peak followed by sets of three, 10-s Wingate sprints with 50 s of recovery between sprints...
2018: International Journal of Exercise Science
Amanda M J Ferreira, Luiz F Farias-Junior, Thaynan A A Mota, Hassan M Elsangedy, Aline Marcadenti, Telma M A M Lemos, Alexandre H Okano, Ana P T Fayh
The aim of this study was to investigate whether carbohydrate mouth rinse (CMR) improves physical performance of cyclists during a 30-km time trial test and its influence on water balance compared to other strategies of fluid intake. Eleven recreationally trained male cyclists completed a 30 km time trial cycle ergometer under three experimental interventions: (a) CMR, (b) drinking to replace all weight loss (DWL), and (c) drinking "ad libitum" (DAL). Time to complete the 30 km time trial, heart rate, average power, velocity, weight loss, urine color, urine density and pH were evaluated...
June 2018: Journal of Sports Science & Medicine
Amanda M J Ferreira, Luiz F Farias-Junior, Thaynan A A Mota, Hassan M Elsangedy, Aline Marcadenti, Telma M A M Lemos, Alexandre H Okano, Ana P T Fayh
Background: The hypothesis of the central effect of carbohydrate mouth rinse (CMR) on performance improvement in a fed state has not been established, and its psychophysiological responses have not yet been described. The aim of this study was to evaluate the effect of CMR in athletes fed state on performance, biochemical and psychophysiological responses compared to ad libitum water intake. Methods: Eleven trained male cyclists completed a randomized, crossover trial, which consisted of a 30 km cycle ergometer at self-selected intensity and in a fed state...
2018: Journal of the International Society of Sports Nutrition
Kevin O Murray, Hunter L Paris, Alyce D Fly, Robert F Chapman, Timothy D Mickleborough
Rinsing the mouth with a carbohydrate solution has been shown to improve exercise performance in a manner similar to carbohydrate ingestion. However, the underlying mechanisms behind these ergogenic benefits remain unclear. This study evaluated whether rinsing the mouth with a carbohydrate solution alters plasma insulin and glucose concentration during the initial stages of a 40 km cycling time-trial. Eight trained, competitive cyclists [age (mean ± SEM) = 24 ± 2 y; V̇O2 max = 64.5 ± 2.2 ml·kg-1 ·min-1 ] completed three simulated 40 km time-trials comprised of a familiarization trial, a carbohydrate condition (CHO) and a placebo mouth rinse condition (PLA)...
March 2018: Journal of Sports Science & Medicine
Flávio O Pires, Cayque Brietzke, Fabiano A Pinheiro, Katherine Veras, Eugênia C T de Mattos, André L F Rodacki, Carlos Ugrinowitsch
We investigated if a carbohydrate (CHO) mouth rinse may attenuate global fatigue and improve 4-km cycling time trial (TT4km ) performance. After a preliminary session, cyclists ( n = 9) performed a TT4km after a CHO or placebo (PLA) mouth rinse. Mean power output, time, and ratings of perceived exertion (RPE) were recorded throughout the TT4km . Twitch interpolation responses (%VA; voluntary activation and ∆Tw; delta peak twitch torque) were compared pre and post TT4km with traditional statistics and effect size (ES) analysis...
March 12, 2018: Nutrients
Mo'ath F Bataineh, Ali M Al-Nawaiseh, Mohammad H Abu Altaieb, David M Bellar, Omar S Hindawi, Lawrence W Judge
Mouth rinsing using a carbohydrate (CHO) solution has been suggested to improve physical performance in fasting participants. This study examined the effects of CHO mouth rinsing during Ramadan fasting on running time to exhaustion and on peak treadmill speed (Vpeak ). In a counterbalanced crossover design, 18 sub-elite male runners (Age: 21 ± 2 years, Weight: 68.1 ± 5.7 kg, VO2max : 55.4 ± 4.8 ml/kg/min) who observed Ramadan completed a familiarization trial and three experimental trials...
April 2018: European Journal of Sport Science
Christopher D Black, Daniel J Schubert, Marcin K Szczyglowski, Joshua D Wren
Black, CD, Schubert, DJ, Szczyglowski, MK, and Wren, JD. Carbohydrate mouth rinsing does not prevent the decline in maximal strength after fatiguing exercise. J Strength Cond Res 32(9): 2466-2473, 2018-Carbohydrate (CHO) rinsing has been shown to attenuate the decline of maximal voluntary contractions (MVCs) after fatiguing exercise-perhaps through a central mechanism. This study sought to determine the effect of a CHO rinse on MVC, voluntary activation, and contractile properties after fatiguing exercise. Thirteen adults participated in a double-blind, cross-over study...
September 2018: Journal of Strength and Conditioning Research
Simon Devenney, Shane Mangan, Marcus Shortall, Kieran Collins
The current study aims to identify if mouth rinsing with a 6% carbohydrate mouth-rinse (CMR) solution and mouth rinsing and ingestion of caffeine (CMR+CAFF) can affect exercise performance during steady-state (SS) running and high-intensity intervals (HIIT) in comparison with a 0% control solution (PLA) when in a fed state. Eight recreationally trained males completed 3 trials (CMR, CMR+CAFF, and PLA) of 45 min SS running and an HIIT protocol (90% peak treadmill velocity) until fatigue in a double blinded, repeated-measures study...
May 2018: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
Jeroen Van Cutsem, Kevin De Pauw, Samuele Marcora, Romain Meeusen, Bart Roelands
INTRODUCTION: Mental fatigue is a psychobiological state caused by prolonged periods of demanding cognitive activity that has negative implications on many aspects in daily life. Caffeine and carbohydrate ingestion have been shown to be able to reduce these negative effects of mental fatigue. Intake of these substances might however be less desirable in some situations (e.g., restricted caloric intake, Ramadan). Rinsing caffeine or glucose within the mouth has already been shown to improve exercise performance...
April 2018: Psychopharmacology
Kana Konishi, Tetsuya Kimura, Atsushi Yuhaku, Toshiyuki Kurihara, Masahiro Fujimoto, Takafumi Hamaoka, Kiyoshi Sanada
Background: A decline in executive function could have a negative influence on the control of actions in dynamic situations, such as sports activities. Mouth rinsing with a carbohydrate solution could serve as an effective treatment for preserving the executive function in exercise. The purpose of this study was to examine the effects of mouth rinsing with a carbohydrate solution on executive function after sustained moderately high-intensity exercise. Methods: Eight young healthy participants completed 65 min of running at 75% V̇O2 max with two mouth-rinsing conditions: with a carbohydrate solution (CHO) or with water (CON)...
2017: Journal of the International Society of Sports Nutrition
Bruno Bavaresco Gambassi, Ylana Gomes de Santana Barros Leal, Edson R Pinheiro Dos Anjos, Bruna A Antonelli, Daniela C Gomes Gonçalves E Silva, Iracema H Pires de Mélo Montenegro, Rita di Cássia de Oliveira Angelo, Isis S Correia Moura, Paulo A Schwingel
BACKGROUND: Carbohydrates (CHO) are among the most investigated nutritional ergogenic aids, and may be consumed in different forms, e.g., mouth rinse with carbohydrate solution (MRCS). In this sense, the aim of this study was to evaluate the impact of MRCS on the performance of physically active individuals undergoing a physical exercise session carried out until the volitional exhaustion. METHODS: This is a counter-balanced randomized study, with a double-blind design...
November 17, 2017: Journal of Sports Medicine and Physical Fitness
Patrick Dolan, Kyle E Witherbee, Kimi M Peterson, Chad M Kerksick
Dolan, P, Witherbee, KE, Peterson, KM, and Kerksick, CM. Effect of carbohydrate, caffeine, and carbohydrate + caffeine mouth rinsing on intermittent running performance in collegiate male lacrosse athletes. J Strength Cond Res 31(9): 2473-2479, 2017-Recently, an interest has developed in the potential to rinse the oral cavity with key nutrients to impact various types of exercise and presumably sporting performance. Although multiple studies examining carbohydrate mouth rinsing have been completed, conflicting evidence surrounding caffeine mouth rinsing persists, and no research has explored its ability to impact high-intensity, intermittent running performance...
September 2017: Journal of Strength and Conditioning Research
Costas Chryssanthopoulos, Christos Ziaras, Tanja Oosthuyse, Ioannis Lambropoulos, Paradisis Giorgios P, Elias Zacharogiannis, Anastassios Philippou, Maria Maridaki
This study examined the effect of carbohydrate mouth rinsing on endurance running performance in women. Fifteen female recreational endurance runners, who used no oral contraceptives, ran two races of 1-h duration on an indoor track (216-m length) at 18:00 h after an 8-h fast with a 7-days interval between races, corresponding to the 3rd -10th day of each premenopausal runner's menstrual cycle, or any day for the postmenopausal runners. In a double-blind random order, participants rinsed their mouth with 25 ml of either a 6...
April 2018: Journal of Sports Sciences
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