Date Approved


Degree Type

Open Access Thesis

Degree Name

Master of Science (MS)

Department or School

Health Promotion and Human Performance

Committee Member

Christopher W. Herman, Ph.D.

Committee Member

Jeff W. Schulz, Ph.D.

Committee Member

Shel Levine, M.S.


The Polar V800TM, A300TM, and Garmin Forerunner 235TM predict VO2max from a submaximal effort. Purpose: To examine the predictability of VO2max from two heart rate monitors (Device A and V) and a global positioning system (GPS) watch compared to measured VO2max. Methods: Forty participants, 22 males and 18 females ages 18 to 55, came to the Running Science Laboratory at Eastern Michigan University. During visit 1, participants completed a maximal graded exercise test (GXT) to determine VO2max. At visit 2, each device’s protocol was followed to estimate VO2max. Pearson correlations, repeated measures ANOVA, and a paired samples t-test were utilized to compare estimated VO2max values from the devices to measured VO2max from the GXT (p < 0.05). Results: Ten participants were excluded. The GPS watch revealed a RMANOVA p-value < .001 for participants with > 50 ml/kg/min VO2max. Conclusion: Even though there were moderate to strong relationships, all three watches underestimated VO2max compared to measured VO2max.