Semester Award Granted

Spring 2025

Submission Date

May 2025

Document Type

Thesis

Degree Name

Master of Science (MS)

Thesis/Dissertation Advisor [Chair]

Ashley L. Artese

Abstract

Introduction: Several new wrist-worn devices estimate VO2 max; however, their validity has not been fully tested. Therefore, the purpose of this study was to determine the validity of three wrist-worn devices (Polar Ignite 3, Garmin VivoActive 5, Garmin VivoSmart 5) for estimating VO2 max. Methods: Twenty-nine participants (21.9±2.1 years) participated.VO2 max was estimated using the three devices’ protocols. COSMED Quark CPET was used to measure VO2 max. Pearson Product-moment Correlations and paired t-tests compared device-estimated values to actual measurements. Agreement between device-estimates and measured values were determined using Bland Altman plots, mean absolute percentage error, and Intraclass Coefficients. Significance was accepted at p< .05. Results: Mean VO2 max was (40.5±8.3 mL/kg/min). VO2 max was significantly lower than means for Polar (10.6±8.4; p< .001), VivoActive (4.7±6.6; p=.003), and VivoSmart (4.5±6.8; p< .001). Conclusion: All three devices overestimated VO2 max compared to measured value. A larger, more diverse sample is needed to confirm these results.

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