POTENCIAL DO ESTÍMULO AUDITIVO MUSICAL NO SISTEMA CARDIOVASCULAR

The music brings various systemic effects in the human body, it has the ability to reduce the levels of anxiety, operates in the mood, regulates the vital parameters such as blood pressure and decreases the perception of pain1. The effectiveness of the auditory stimulus of music has also been described in the cardiovascular system, influencing the heart rate and its variability. Auditory stimulation, by means of music, influence the cardiovascular system, since there is a correlation between the intensity of noise and the balance vagal sympathetic. In this way, it is postulated that the dopamine released in striatal system, induced by joyful songs, is involved in autonomic regulation. Thus, the music is capable of improving the cardiac autonomic adjustment2. Still on the physiological mechanisms of action, the song features adjustment of levels through its neural processing. Thus, by means of the decrease in sympathetic activity associated with an increase in vagal activity, music produces bradycardia, tending to produce a decrease in total peripheral resistance and cardiac output, thus contributing to the return of blood pressure to normal levels. In this way, through the mechanisms of neural processing of music, it can bring benefits in the clinical practice of several health professionals minimizing stress by which patients are submitted3. It has been demonstrated that the stress induced by direction increases the chances of cardiovascular complications and is involved or related to traffic accidents. In order to develop strategies to avoid health problems while driving, was assessed the acute effects of auditory stimulation with music on heart rate variability (HRV) when driving in urban traffic congestion. It was found that the musical auditory stimulation improves the non-linear changes in HRV induced by driving4.