UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

Validation of Wearable Derived Heart Rate Variability and Oxygen Saturation from the Garmin's Health Snapshot

Williams, K; Jamieson, A; Chaturvedi, N; Hughes, A; Orini, M; (2023) Validation of Wearable Derived Heart Rate Variability and Oxygen Saturation from the Garmin's Health Snapshot. In: Computing in Cardiology 2023 (CinC 2023). Computing in Cardiology Green open access

[thumbnail of CinC2023-237.pdf]
Preview
Text
CinC2023-237.pdf - Accepted Version

Download (404kB) | Preview

Abstract

The new Garmin 'Health Snapshot' feature claims to measure resting heart rate (RHR), heart rate variability (HRV) and oxygen saturation (SpO2) over a two-minute period, providing a 'glimpse of overall cardiovascular status'. This is the first study to investigate the accuracy of the feature in healthy adults (n=27, 63% male, mean ± SD age = 21.9pm 6.7). Slower respiratory rates are known to increase HRV, therefore two respiratory rates (normal and controlled) were incorporated within the protocol. Reference measures for RHR and HRV metrics (RMSSD and SDNN) were derived from an electrocardiogram (ECG), whereas reference SpO2 was determined using a Pulse Oximeter. Health Snapshot accuracy was quantified using Pearson's/Spearman's (cc_{p}/cc_{s}) correlation coefficients, Bland-Altman plots and mean absolute error (MAE). Health Snapshot estimations of RHR produced almost perfect correlation (0.99), MAE < 2% and narrow limits of agreement. Under normal breathing, both HRV metric estimations produced good correlation (cc_{p} > 0.82). SpO2 estimation was relatively poor with ∼16.7% of Garmin estimations < 95%, despite all references ≥ 98%. HRV metric estimations were less accurate during controlled breathing, because wearable-derived HRV was slightly underestimated for lager HRV values.

Type: Proceedings paper
Title: Validation of Wearable Derived Heart Rate Variability and Oxygen Saturation from the Garmin's Health Snapshot
Event: 50th Computing in Cardiology Conference 2023
ISBN-13: 9798350382525
Open access status: An open access version is available from UCL Discovery
DOI: 10.22489/CinC.2023.237
Publisher version: http://dx.doi.org/10.22489/cinc.2023.237
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science > Population Science and Experimental Medicine
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Cardiovascular Science > Population Science and Experimental Medicine > MRC Unit for Lifelong Hlth and Ageing
URI: https://discovery.ucl.ac.uk/id/eprint/10186376
Downloads since deposit
12Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item