Comparison of the Polar V800 and the Garmin Forerunner 230 to Predict V[Combining Dot Above]O2max

• Nikolas C. Snyder ^[1] ; Courtney A. Willoughby ^[1] ; Bryan Smith
  1. [1] Department of Applied Health, Southern Illinois University Edwardsville, Edwardsville, Illinois
• Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 35, Nº. 5, 2021, págs. 1403-1409
• Idioma: inglés
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• Resumen

  • The purpose of this study was to compare maximal oxygen consumption (V[Combining Dot Above]O2max) values (Amax) with predicted V[Combining Dot Above]O2max values obtained from the Polar V800 (PV800) and the Garmin Forerunner 230 (GF230) to determine whether the accuracy of these estimates differs between sexes. The PV800 predicts V[Combining Dot Above]O2max based on resting heart rate (HR). The GF230 predicts V[Combining Dot Above]O2max based on a 10-minute, self-paced outdoor run. Subjects consisted of 22 women and 22 men. After a 10-minute supine rest, predicted V[Combining Dot Above]O2max (Pmax) values from the PV800 were measured during a 5-minute supine rest. Subjects then completed a treadmill V[Combining Dot Above]O2max test to determine Amax. Within 48 hours of obtaining Amax, individuals completed a 10-minute, self-paced outdoor run using the GF230 to predict V[Combining Dot Above]O2max (Gmax). A 2-way (watch vs. sex) analysis of variance was used to determine whether there were differences between predicted V[Combining Dot Above]O2max and Amax between sexes. A significant interaction between HR monitors and sex was found (p = 0.007). Follow-up analysis showed that in men, Pmax was significantly overestimated compared with Gmax (3.87 +/- 1.53 ml[middle dot]kg-1[middle dot]min-1, p = 0.013). Bland-Altman plots revealed large random errors that ranged from 6.6 to 16.4 ml[middle dot]kg-1[middle dot]min-1 with the PV800 having larger errors than the GF230. The results of this study indicate that the GF230 can provide an accurate estimate of V[Combining Dot Above]O2max in both sexes. The PV800 can provide an accurate estimate of V[Combining Dot Above]O2max for women but not men. Estimates of V[Combining Dot Above]O2max from the both devices should be used with caution because of the large random error associated with them.