Authors:
Kang Moo Lee
1
;
Seung Min Lee
1
;
Gih Sung Chung
1
;
Hong Ji Lee
1
;
Yong Gyu Lim
2
and
Kwang Suk Park
3
Affiliations:
1
Seoul National University, Korea, Republic of
;
2
Sangji University, Korea, Republic of
;
3
College of Medicine and Seoul National University, Korea, Republic of
Keyword(s):
Capacitive electrode, Autonomic nervous system activity, Portable device.
Related
Ontology
Subjects/Areas/Topics:
Biomedical Engineering
;
Biomedical Equipment
;
Biomedical Instrumentation
;
Biomedical Instruments and Devices
;
Biomedical Sensors
;
Devices
;
Health Monitoring Devices
;
Human-Computer Interaction
;
Physiological Computing Systems
;
Wireless Systems
Abstract:
Heart rate variability (HRV) reflects the autonomic nervous system (ANS) activity and HRV parameters are extracted from electrocardiogram (ECG) signal. However, the conventional ECG electrodes such as Ag/AgCl electrode make a person uncomfortable due to electrolytic paste or conductive adhesive used for ensuring good contact between electrode and skin. In this study, the portable device with capacitive electrodes was designed to monitor ANS activity through clothes. By using capacitive electrodes, ECG can be measured without direct skin-contact through capacitive coupling between the body and the electrodes. To evaluate the possibility that the ANS activity can be monitored using the capacitive electrode system, HRV parameters extracted from the capacitive electrodes were compared with HRV parameters extracted from Ag/AgCl electrodes. Results showed that there was no significant difference between the HRV parameters of two different electrodes.