Cardiac Autonomic Modulation (CAM): Immediately after each measurement of BP, we evaluated the MAC through the HR variability, using a monitor brand Polar RS800CX (PolarElectroOy, Kempele, Finland). The volunteers were seated and the record was made for a minimum of 10 minutes. Data were transferred to a computer provided with software of the same manufacturer and then transferred to the Kubios HRV software, version 2.0 (University of Kuopio, Finland). Data were analyzed in the time domain, being considered the average (RRM) and the standard deviation of the individual intervals RR (SDNN), the root mean square of successive differences between adjacent RR (RMSSD) and the percentage of successive differences between RR intervals greater than 50 ms (pNN50). In the frequency domain, they were considered low frequency bands (0:04 to 00:15 Hz) (LF) and high frequency (0.15 to 0.4 Hz) (AF). It was also adopted the low ratio frequency / high frequency as sympathetic-vagal balance (LF / HF).