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phat 15(3): e1

Research Article

BioWatch: Estimation of Heart and Breathing Rates from Wrist Motions

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  • @ARTICLE{10.4108/icst.pervasivehealth.2015.259064,
        author={Javier Hernandez and Daniel McDuff and Rosalind Picard},
        title={BioWatch: Estimation of Heart and Breathing Rates from Wrist Motions},
        journal={EAI Endorsed Transactions on Pervasive Health and Technology},
        volume={1},
        number={3},
        publisher={EAI},
        journal_a={PHAT},
        year={2015},
        month={8},
        keywords={accelerometer, gyroscope, smartwatch, wrist, ballistocardiography, photoplethysmography, sleep monitoring, respiration, heart rate, breathing rate},
        doi={10.4108/icst.pervasivehealth.2015.259064}
    }
    
  • Javier Hernandez
    Daniel McDuff
    Rosalind Picard
    Year: 2015
    BioWatch: Estimation of Heart and Breathing Rates from Wrist Motions
    PHAT
    EAI
    DOI: 10.4108/icst.pervasivehealth.2015.259064
Javier Hernandez1,*, Daniel McDuff1, Rosalind Picard1
  • 1: Massachusetts Institute of Technology
*Contact email: javierhr@media.mit.edu

Abstract

Continued developments of sensor technology including hardware miniaturization and increased sensitivity have enabled the development of less intrusive methods to monitor physiological parameters during daily life. In this work, we present methods to recover cardiac and respiratory parameters using accelerometer and gyroscope sensors on the wrist. We demonstrate accurate measurements in a controlled laboratory study where participants (n = 12) held three different positions (standing up, sitting down and lying down) under relaxed and aroused conditions. In particular, we show it is possible to achieve a mean absolute error of 1.27 beats per minute (STD: 3.37) for heart rate and 0.38 breaths per minute (STD: 1.19) for breathing rate when comparing performance with FDA-cleared sensors. Furthermore, we show comparable performance with a state-of-the-art wrist-worn heart rate monitor, and when monitoring heart rate of three individuals during two consecutive nights of in-situ sleep measurements.

Keywords
accelerometer, gyroscope, smartwatch, wrist, ballistocardiography, photoplethysmography, sleep monitoring, respiration, heart rate, breathing rate
Published
2015-08-03
Publisher
EAI
http://dx.doi.org/10.4108/icst.pervasivehealth.2015.259064

Copyright © 2015 J. Hernandez et al., licensed to EAI. This is an open access article distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/3.0/), which permits unlimited use, distribution and reproduction in any medium so long as the original work is properly cited.

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