A Study of the Suitable Electrode Position on the Head for High Accuracy R-peak Detection from Electrocardiogram

Abstract

Electrocardiogram (ECG) derived from the head has the potential to be the available measurement for heart rate monitoring in the exercise using only smart glasses. Therefore, we investigated the suitable electrode position on the frame of smart glass for high accuracy detectable of R-peak wave of ECG derived from head. Head ECG was measured from three kinds of position on the frame of smart glass (left and right skin on the nose, temple) in 5 healthy male participants. The experimental was started with a 1 min stationary state period. Next 40 W exercise load for 1 min using cycle ergometer. The band pass filter from 8 Hz to 25 Hz adapted to head lead ECG. The result showed that the electrode position of highest detection ratio (DR) was position of left on the nose. In addition, the DR was 95%. On the one hand, DR were decreased according to exercise load. As future work, development of signal processing to reduce noise will be needs. In conclusion these finding suggest that HR derived from head ECG might be practical index in life.