5 research outputs found
Efects of cafeine intake and exercise intensity on executive and arousal vigilance
During physical eforts and sport practice, vigilance is responsible for maintaining an optimal state
of activation, guaranteeing the ability to quickly respond and detect unexpected, but critical, stimuli
over time. Cafeine and physical exercise are able to modulate the activation state, afecting vigilance
performance. The aim of the present work was to assess the specifc efects and modulations of cafeine
intake and two physical intensities on vigilance components. Participants performed an attentional
task (ANTI-Vea) to measure the executive and arousal components of vigilance, in six double-blinded
counterbalanced sessions combining cafeine, placebo, or no-ingestion, with light vs. moderate
cyclergometer exercise. Exercise at moderate intensity improved executive vigilance with faster overall
reaction time (RT), without impairing error rates. Instead, cafeine intake generally improved arousal
vigilance. In conclusion, cafeine and acute exercise seems to moderate executive and arousal vigilance
in diferent ways.Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET)Spanish Agencia Estatal de Investigacion, Ministerio de Economia y Competitividad
PSI2017-84926-P
A-SEJ-036-UGR18Juan de AndaluciaUniversidad de Granad