EVALUATION OF STRESS PARAMETERS BASED ON HEART RATE VARIABILITY MEASUREMENTS

Abstract

In this study, heart rate variability measurements and analyses were carried out with help of the ECGrecordings to show how autonomic nervous system activity changes. ECG signal recording was collected from sixvolunteer participants under following conditions; the situation of relaxation, Stroop color/word test, mental test andauditory stimulus in a laboratory environment so as to evaluate the parameters related to stress. Totally seven minutesECG recording was taken and analyzed in time and frequency domain. We investigated that how autonomic nervoussystem activity changed in the position of stress. According to frequency domain analysis, there has seen significantincrease at low frequency band (LF band) which reflects sympathetic activity particularly during Stroop color/wordand mental tests.