Subject terms
hypoxia, fatigue, impairments in exercise performanceMoreover
HYPOXIA
Ten male cyclists were randomized into four experimental conditions in this randomized, cross-over, double-blind, and sham-controlled study to test the combined effect of acute dark chocolate (DC) ingestion and anodal concurrent dual-site transcranial direct current stimulation (a-tDCS) targeting M1 and left DLPFC on cognitive and whole-body endurance performance in hypoxia after performing a cognitive task. Two hours before the sessions, chocolate was consumed. After arriving at the lab, participants completed an incongruent Stroop task for 30 min in hypoxia (OBy increasing altitude, the partial pressure of OStudies have also demonstrated that hypoxia has a detrimental effect on cognitive function (i.e., impaired attentional ability, executive function, and memory function) and the psychophysiological homeostasis of the bodyNutritional interventions are the most common strategies to counteract hypoxia-induced impairments in exercise performanceMoreover, anodal transcranial direct current stimulation (a-tDCS) has recently been suggested to boost exercise performanceThus, considering the detrimental effect of both hypoxia and mental fatigue on cognitive and physical performance, and the overlapping between its underlying mechanisms with the action mechanisms of DC and tDCS, it is possible to speculate that the combination of DC and a-tDCS