Validation of the Garmin Forerunner 920XT Fitness Watch VO2peak Test

Gina Leigh Kraft; Rachel A. Roberts

doi:10.31686/ijier.vol5.iss2.619

Authors

Gina Leigh Kraft Arkansas Tech University, USA
Rachel A. Roberts Arkansas Tech University, USA

DOI:

https://doi.org/10.31686/ijier.vol5.iss2.619

Keywords:

maximal aerobic capacity, indirect spirometry, Bruce treadmill protocol, heart rate sensor

Abstract

Aerobic capacity (VO2peak ) testing equipment can be expensive. Garmin fitness watches are significantly cheaper, and Garmin has developed a fitness test that estimates VO 2peak . The purpose of this study was to validate the Garmin fitness test, using a Garmin Forerunner 920XT fitness watch, against VO 2peak measurement, using a Parvomedics TrueOne 2400 open circuit spirometry device. Sixteen college students (10 male and 6 female) volunteered to complete the Garmin fitness test followed several days later by a Bruce treadmill test while oxygen consumption was measured via open circuit spirometry. The average VO 2peak from the Garmin test was 45.4 (± 5.6) ml/kg/min, compared to 45.0 (± 8.9) ml/kg /min from open circuit spirometry. There were no significant differences between the measurements (t = 0.221 with p = 0.828). The two measurements were highly correlated with a correlation coefficient of 0.84 (p =0.000). The Garmin fitness test seems to be a highly accurate estimation of VO 2peak2peak.

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Author Biographies

Gina Leigh Kraft, Arkansas Tech University, USA

Assistant Professor, the Program Director for Strength and Conditioning Studies
Rachel A. Roberts, Arkansas Tech University, USA

Rachel Roberts was a graduate assistant at Arkansas Tech University in the Strength and Conditioning Studies program. She assisted in teaching and research while there. She has since graduated and is currently an intern at the National Strength and Conditioning Association Headquarters in Colorado Springs.

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