Introduction: The control of the visceral functions of the human body is the responsibility of the autonomic nervous system (ANS). Thus, theintegration of its sympathetic and parasympathetic branches redeem on the hearte stablishes Cariac Rate Variability (CRV), whichis a tool widely used to evaluate the fluctuations of heart rate (HR) caused by the ANS adaptations to the cardiovascular system. Objective: To an...