Evaluation of Heart Rate As a Marker for Psychological Stress
It has been shown that heart rate (HR) is proportional to and a marker for human stress. Numerous other studies have validated this fact, and this has led to a boom in a wide variety of consumer offerings that both analyze heart rate and claim to provide a quantitative barometer of psycho- physiological state. We analyze, in this study, the robustness of heart rate as a stress marker. For retrospective mining of HR data as well as real-time alerts, our data shows that there is a need to normalize the HR measurement with the accelerometer measurements to provide any meaningful indication of stress.