Jamieson, A;
Jones, S;
Steves, C;
Timpson, N;
Chaturvedi, N;
Hughes, AD;
Orini, M;
(2024)
Comparison Between Smartwatch-Derived and CPET-Measured VO2max.
In:
Computing in Cardiology.
CinC (Computing in Cardiology)
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Abstract
This study aimed to determine the accuracy of smartwatch-derived maximal oxygen consumption (VO2max) and the percentage of predicted VO2max (%pVO2max), two standard measures of cardiorespiratory fitness with established clinical predictive value. 215 adults (44 (21%) male; median [interquartile range; IQR] 55 [32, 62] years old) performed a maximal exercise test (CPET) on a semi-recumbent ergometer and wore a Garmin Vivoactive 4s (GV4) smartwatch for 60 days. The first and last VO2max estimates provided by GV4 were compared to CPET measured VO2max and %pVO2max (Wasserman and Whipp’s anthropometric-based equation). Agreement was assessed using Bland-Altman analysis (bias and limits of agreement [LoA]), absolute percentage error (APE), reported as median [interquartile range], and Pearson’s correlation coefficient (cc). VO2max and %pVO2max measured during CPET was 22.4 [17.5, 27.4] ml/kg/min and 90.9% [78.1%, 101.3%], respectively. VO2max estimates from GV4 were moderately correlated with CPET measures (cc≤ 0.66) and showed a large positive bias ~14 ml/kg/min with LoA from 0 - 27 ml/kg/min. Correlation between VO2max from GV4 and anthropometric-based prediction of VO2max was high (cc>0.90). Agreement between %pVO2max from GV4 and CPET was poor (cc~0.15, bias ~52%, LoA 7-98 %). GV4 provides estimates of VO2max that overestimate but moderately correlate with CPET measured VO2max. The agreement for %pVO2max is poor.
| Type: | Proceedings paper |
|---|---|
| Title: | Comparison Between Smartwatch-Derived and CPET-Measured VO2max |
| Event: | 2024 Computing in Cardiology Conference |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.22489/CinC.2024.352 |
| Publisher version: | https://cinc.org/final_program_papers_2024/ |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/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 |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10220912 |
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