Effects of previous carbohydrate supplementation on muscular fatigue: double-blind, randomized, placebo-controlled crossover study
Motriz (Online)
;
25(1): e101844, 2019. tab, ilus
Artigo
em Inglês
| LILACS
| ID: biblio-1012686
ABSTRACT
Aims: The aim of this study was to examine the effects of previous carbohydrate supplementation on high-volume resistance exercise performance Methods: Twenty males physically independent adults aged ≥18 years participated in a double-blind randomized placebo-controlled crossover study. Sixty minutes before the experimental protocol, each participant ingested 0,6 g.kg of body mass-1 of carbohydrate supplementation or placebo. Maximum voluntary isometric contraction tests were performed before and after the dynamic fatigue induction protocol consisting of 10 sets of 8 repetitions of right leg knee extensors at 120º s-1. Results: Lower decrement of the isometric peak torque (p<0,001) and of the rate of torque development (p<0,001) was observed in carbohydrate supplementation after the dynamic protocol. Both concentric and eccentric peak torque differed significantly (p<0,001) between carbohydrate supplementation and placebo treatments from the second set, although the slope of the force-repetitions curve was not different between them. Additionally, the carbohydrate supplementation resulted in a lower session rating of perceived exertion (p<0,05). Conclusions: Previous carbohydrate supplementation attenuates muscle fatigue and internal load exercise in a high-volume isokinetic leg protocol.(AU)
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Carboidratos
/
Treino Aeróbico
Tipo de estudo:
Ensaio Clínico Controlado
/
Guia de Prática Clínica
Limite:
Humanos
Idioma:
Inglês
Revista:
Motriz (Online)
Assunto da revista:
EducaÆo F¡sica e Treinamento
/
Medicina Esportiva
/
Medicina F¡sica e ReabilitaÆo
Ano de publicação:
2019
Tipo de documento:
Artigo
País de afiliação:
Brasil
/
Itália
Instituição/País de afiliação:
Universidade Estácio de Sá/BR
/
Universidade Federal de São Paulo (Unifesp)/BR
/
Universidade Federal do Espirito Santos/BR
/
Universidade Nove de Julho/BR
/
Universidade de São Paulo - USP/BR
/
Universita degli Studi di Padova/IT
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