title: Flexible capacitive electrodes for minimizing motion artifacts in ambulatory electrocardiograms.
abstract: This study proposes the use of flexible capacitive electrodes for reducing motion artifacts in a wearable electrocardiogram (ECG) device. The capacitive electrodes have conductive foam on their surface, a shield, an optimal input bias resistor, and guarding feedback. The electrodes are integrated in a chest belt, and the acquired signals are transmitted wirelessly for ambulatory heart rate monitoring. We experimentally validated the electrode performance with subjects standing and walking on a treadmill at speeds of up to 7 km/h. The results confirmed the highly accurate heart rate detection capacity of the developed system and its feasibility for daily-life ECG monitoring.
authors.affiliation: Interdisciplinary Program for Bioengineering, Graduate School, Seoul National University, Seoul 110-799, Korea. dynamicjs@snu.ac.kr.
authors.forename: Jeong Su
authors.initials: JS
authors.lastname: Lee
authors.affiliation: Interdisciplinary Program for Bioengineering, Graduate School, Seoul National University, Seoul 110-799, Korea. hjeong20@bmsil.snu.ac.kr.
authors.forename: Jeong
authors.initials: J
authors.lastname: Heo
authors.affiliation: Interdisciplinary Program for Bioengineering, Graduate School, Seoul National University, Seoul 110-799, Korea. wongyu86@bmsil.snu.ac.kr.
authors.forename: Won Kyu
authors.initials: WK
authors.lastname: Lee
authors.affiliation: Department of Oriental Biomedical Engineering, Sangji University, Wonju 220-702, Korea. yglim@sangji.ac.kr.
authors.forename: Yong Gyu
authors.initials: YG
authors.lastname: Lim
authors.affiliation: Samsung Advanced Institute of Technology, 130, Samsung-ro, Yeongtong-gu, Suwon 443-803, Korea. yh92.kim@samsung.com.
authors.forename: Youn Ho
authors.initials: YH
authors.lastname: Kim
authors.affiliation: Department of Biomedical Engineering, College of Medicine, Seoul National University, Seoul 110-799, Korea. pks@bmsil.snu.ac.kr.
authors.forename: Kwang Suk
authors.initials: KS
authors.lastname: Park
mesh_terms: D016477:Artifacts; D025802:Electric Capacitance; D015716:Electrocardiography, Ambulatory / Q000295:instrumentation*; D004566:Electrodes; D004867:Equipment Design / Q000295:instrumentation; D006339:Heart Rate / Q000502:physiology; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D009038:Motion; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation