Effect of changes in contact pressure between the skin and dry electrodes for ECG waveform

2021 Fiscal Year Final Research Report

• Project/Area Number: 20K20191
• Research Category: Grant-in-Aid for Early-Career Scientists
• Allocation Type: Multi-year Fund
• Review Section: Basic Section 90110:Biomedical engineering-related
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: Toshihiro Takeshita 国立研究開発法人産業技術総合研究所, エレクトロニクス・製造領域, 主任研究員 (90784124)
• Project Period (FY): 2020-04-01 – 2022-03-31
• Keywords: ウェアラブルデバイス / ECG / モーションアーティファクト

Outline of Final Research Achievements

In this study, we developed an MA quantitative evaluation device using a skin phantom. When the contact pressure of the electrode surface was 500 Pa, the relative displacement was 200 um, which was a movement of about breathing, 500 um, which was a movement of deep breathing, and 1000 um, which was a movement of more than that, MA quantitative evaluation was performed. The correlation coefficients between the waveform and the waveform without MA were 0.92, 0.74, and 0.53. From this result, it was found that ECG can be measured without MA for movements of the degree of respiration at a displacement of 200 um and a contact pressure of 500 Pa or more.

Free Research Field

生体計測

Academic Significance and Societal Importance of the Research Achievements

本研究成果の社会的意義は、衣類型心電図計測ウェアにおいて、MAを考慮した電極構造設計により、医療機器と同等の心電図計測が可能であることを示した点にある。