Bruno Bavaresco Gambassi1,2, Ylana Gomes de Santana Barros Leal3, Edson R Pinheiro Dos Anjos3, Bruna A Antonelli3,4,5, Daniela C Gomes Gonçalves E Silva3,4,5, Iracema Hermes Pires de Mélo Montenegro3, Rita di Cássia de Oliveira Angelo3,6, Isis Suruagy Correia Moura6, Paulo A Schwingel3,5. 1. Faculty of Physical Education, Universidade Estadual de Campinas (UNICAMP), Campinas, SP, Brazil - professorbrunobavaresco@gmail.com. 2. Laboratório de Pesquisas em Desempenho Humano (LAPEDH), Universidade de Pernambuco (UPE), Petrolina, PE, Brazil - professorbrunobavaresco@gmail.com. 3. Laboratório de Pesquisas em Desempenho Humano (LAPEDH), Universidade de Pernambuco (UPE), Petrolina, PE, Brazil. 4. Department of Physiotherapy, Faculdade São Francisco de Juazeiro (FASJ), Juazeiro, Brazil. 5. Programa de Pós-Graduação em Ciências da Saúde (PPGCS), Universidade de Pernambuco (UPE), Recife, Brazil. 6. Department of Neuropsychiatry and Behavioral Sciences, Universidade Federal de Pernambuco (UFPE), Recife, Brazil.
Abstract
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 aphysical exercise session carried out until the volitional exhaustion. METHODS: This is a counter-balanced randomized study, with a double-blind design. The sample consisted of twenty-one physically active healthy men with a mean (±SD) of age of 22.4 (±2.7) years old, 76.7 (±6.0) cm of height,12.1% (±3.7) of body fat mass, and 23.9 (±2.4) kg/m2 of body mass index. After familiarizing the participants with the protocol (cycle ergometer, with oral mouth rinse procedure) and assessing the maximal lactate steady state the cycling exercise was performed until the volitional exhaustion in the following conditions: without mouth rinse (CONTROL), PLACEBO and MRCS. RESULTS:Time to reach exhaustion was statistically different (P<0.0001) between conditions (control: 43.0±27.5 minutes; placebo: 57.4±30.6 minutes; MRCS: 70.9±30.3 minutes). CONCLUSIONS: The administration of MRCS was shown to be effective in improving cycling performance, increasing the time to exhaustion until the volitional exhaustion. Thus, the use of methodology proposed by the present study may help coaches and practitioners improve the performance of physically active young adults.
RCT Entities:
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. The sample consisted of twenty-one physically active healthy men with a mean (±SD) of age of 22.4 (±2.7) years old, 76.7 (±6.0) cm of height,12.1% (±3.7) of body fat mass, and 23.9 (±2.4) kg/m2 of body mass index. After familiarizing the participants with the protocol (cycle ergometer, with oral mouth rinse procedure) and assessing the maximal lactate steady state the cycling exercise was performed until the volitional exhaustion in the following conditions: without mouth rinse (CONTROL), PLACEBO and MRCS. RESULTS: Time to reach exhaustion was statistically different (P<0.0001) between conditions (control: 43.0±27.5 minutes; placebo: 57.4±30.6 minutes; MRCS: 70.9±30.3 minutes). CONCLUSIONS: The administration of MRCS was shown to be effective in improving cycling performance, increasing the time to exhaustion until the volitional exhaustion. Thus, the use of methodology proposed by the present study may help coaches and practitioners improve the performance of physically active young adults.
Authors: Elizabeth S Evans; Terrence Brophy; Matthew R Braswell; Joshua Boyle; G Keith Harris; Ruth H Watkins; Stephen P Bailey Journal: Eur J Appl Physiol Date: 2021-06-26 Impact factor: 3.078