Using Ballistocardiogram and Impedance Plethysmogram for Minimal Contact Measurement of Blood Pressure Based on a Body Weight-Fat Scale

Electronic health (eHealth) is a strategy to improve the physical and mental condition of a human, collecting daily physiological data and information from digital apparatuses. Body weight and blood pressure (BP) are the most popular and important physiological data. The goal of this study is to dev...

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Main Authors: Shing-Hong Liu, Yan-Rong Wu, Wenxi Chen, Chun-Hung Su, Chiun-Li Chin
Format: Article
Language:English
Published: MDPI AG 2023-02-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/4/2318
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author Shing-Hong Liu
Yan-Rong Wu
Wenxi Chen
Chun-Hung Su
Chiun-Li Chin
author_facet Shing-Hong Liu
Yan-Rong Wu
Wenxi Chen
Chun-Hung Su
Chiun-Li Chin
author_sort Shing-Hong Liu
collection DOAJ
description Electronic health (eHealth) is a strategy to improve the physical and mental condition of a human, collecting daily physiological data and information from digital apparatuses. Body weight and blood pressure (BP) are the most popular and important physiological data. The goal of this study is to develop a minimal contact BP measurement method based on a commercial body weight-fat scale, capturing biometrics when users stand on it. The pulse transit time (PTT) is extracted from the ballistocardiogram (BCG) and impedance plethysmogram (IPG), measured by four strain gauges and four footpads of a commercial body weight-fat scale. Cuffless BP measurement using the electrocardiogram (ECG) and photoplethysmogram (PPG) serves as the reference method. The BP measured by a commercial BP monitor is considered the ground truth. Twenty subjects participated in this study. By the proposed model, the root-mean-square errors and correlation coefficients (<i>r</i><sup>2</sup>s) of estimated systolic blood pressure and diastolic blood pressure are 7.3 ± 2.1 mmHg and 4.5 ± 1.8 mmHg, and 0.570 ± 0.205 and 0.284 ± 0.166, respectively. This accuracy level achieves the C grade of the corresponding IEEE standard. Thus, the proposed method has the potential benefit for eHealth monitoring in daily application.
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spelling doaj.art-55cd87ef7c3a43cfa1fd6a420db9d83a2023-11-16T23:13:15ZengMDPI AGSensors1424-82202023-02-01234231810.3390/s23042318Using Ballistocardiogram and Impedance Plethysmogram for Minimal Contact Measurement of Blood Pressure Based on a Body Weight-Fat ScaleShing-Hong Liu0Yan-Rong Wu1Wenxi Chen2Chun-Hung Su3Chiun-Li Chin4Department of Computer Science and Information Engineering, Chaoyang University of Technology, Taichung City 41349, TaiwanDepartment of Computer Science and Information Engineering, Chaoyang University of Technology, Taichung City 41349, TaiwanBiomedical Information Engineering Laboratory, The University of Aizu, Aizu-Wakamatsu City 965-8580, JapanInstitute of Medicine, School of Medicine, Chung-Shan Medical University, Taichung City 40201, TaiwanDepartment of Medical Informatics, Chung-Shan Medical University, Taichung City 40201, TaiwanElectronic health (eHealth) is a strategy to improve the physical and mental condition of a human, collecting daily physiological data and information from digital apparatuses. Body weight and blood pressure (BP) are the most popular and important physiological data. The goal of this study is to develop a minimal contact BP measurement method based on a commercial body weight-fat scale, capturing biometrics when users stand on it. The pulse transit time (PTT) is extracted from the ballistocardiogram (BCG) and impedance plethysmogram (IPG), measured by four strain gauges and four footpads of a commercial body weight-fat scale. Cuffless BP measurement using the electrocardiogram (ECG) and photoplethysmogram (PPG) serves as the reference method. The BP measured by a commercial BP monitor is considered the ground truth. Twenty subjects participated in this study. By the proposed model, the root-mean-square errors and correlation coefficients (<i>r</i><sup>2</sup>s) of estimated systolic blood pressure and diastolic blood pressure are 7.3 ± 2.1 mmHg and 4.5 ± 1.8 mmHg, and 0.570 ± 0.205 and 0.284 ± 0.166, respectively. This accuracy level achieves the C grade of the corresponding IEEE standard. Thus, the proposed method has the potential benefit for eHealth monitoring in daily application.https://www.mdpi.com/1424-8220/23/4/2318ballistocardiogramimpedance plethysmogrampulse transit time (PTT)weight-fat scaleblood pressure
spellingShingle Shing-Hong Liu
Yan-Rong Wu
Wenxi Chen
Chun-Hung Su
Chiun-Li Chin
Using Ballistocardiogram and Impedance Plethysmogram for Minimal Contact Measurement of Blood Pressure Based on a Body Weight-Fat Scale
Sensors
ballistocardiogram
impedance plethysmogram
pulse transit time (PTT)
weight-fat scale
blood pressure
title Using Ballistocardiogram and Impedance Plethysmogram for Minimal Contact Measurement of Blood Pressure Based on a Body Weight-Fat Scale
title_full Using Ballistocardiogram and Impedance Plethysmogram for Minimal Contact Measurement of Blood Pressure Based on a Body Weight-Fat Scale
title_fullStr Using Ballistocardiogram and Impedance Plethysmogram for Minimal Contact Measurement of Blood Pressure Based on a Body Weight-Fat Scale
title_full_unstemmed Using Ballistocardiogram and Impedance Plethysmogram for Minimal Contact Measurement of Blood Pressure Based on a Body Weight-Fat Scale
title_short Using Ballistocardiogram and Impedance Plethysmogram for Minimal Contact Measurement of Blood Pressure Based on a Body Weight-Fat Scale
title_sort using ballistocardiogram and impedance plethysmogram for minimal contact measurement of blood pressure based on a body weight fat scale
topic ballistocardiogram
impedance plethysmogram
pulse transit time (PTT)
weight-fat scale
blood pressure
url https://www.mdpi.com/1424-8220/23/4/2318
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