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James F. Hokanson
Accurate heart rate (HR) measurements are key to exercise prescription. Many portable HR devices are available including the Apple watch. Resting HR from Apple series 3 watch were compared to measurements using a clinal grade Suntech Tango M2 (ST) and Vitalstream Caretaker (VS) pulse monitors. College-aged participants (N = 5) stood in the Alter G treadmill under positive pressures of 70%, 35%, and 90% body weight (BWset), respectively. Heart rates using each device were recorded at min 1, 3, and 5 for each condition. There were no significant differences in resting heart rates measured with the three devices. Average heart rates (±SD) at 70% BWset were 83±10, 82±12, 82±12; at 35% BWset were 79±8, 79±10, 81±11; and at 90% BWset were 88±11, 88±12, 89±10 for Apple, ST, and VS, respectively. All three devices measured a significant change in heart rate as a function of change in BWset (p<0.001).
Heart rate measurements, heart rate monitors, Kinesiology