Efeito do enxágue bucal com carboidrato associado à estimulação transcraniana por corrente contínua no desempenho e percepção subjetiva do esforço durante exercício submáximo

Abstract

Both mouth rinse carbohydrate (MRC) and transcranial direct current stimulation (tDCS) are potential ergogenics aid (EA) acting on the central nervous system in an attempt to delay the onset of fatigue and enhance exercise performance. It has been suggested that these EA can serve as positive afferent signals capable of modifying the activity of specific brain areas, insular and motor cortex, in an attempt to delay the onset of fatigue. In order to better understand this review, this paper addresses the issue in two chapters. In the first chapter, the paper presents a review article "Mouth rinse carbohydrate and transcranial direct current stimulation: potential use as an ergogenic aid" that brings together current information about the relationship tDCS and MRC with physical performance and fatigue. In the second chapter, an original article "Effect of carbohydrate mouth rinse combined transcranial direct current stimulation on performance and rate perceived exertion during submaximal exercise”, discusses the effect of the combination of tDCS and MRC as possible EA on physical performance and ration perceived exertion (RPE) of women undergoing open and dynamic exercise submaximal. Here, we describe for the first that the use of tDCS and MRC (applied over the left temporal lobe - T3), either alone or in combination, significantly increased physical performance and decreased the RPE, demonstrating promising strategies in the field sport. However, further study is needed to checking the possible influence of theses aids from various aspects, these include, amongst others: neuroimaging studies, and monitoring of physiological parameters, such as heart rate variability, these results confirm better clarifying the physiological mechanisms through which the tDCS and improve MRC performance and decrease the RPE, as well as participation in the insular cortex and other brain regions that process.