Παρασκευή 17 Νοεμβρίου 2017

Validity of Wearable Activity Monitors during Cycling and Resistance Exercise.

Introduction: The use of wearable activity monitors has seen rapid growth; however, the mode and intensity of exercise could affect validity of heart rate (HR) and caloric (energy) expenditure (EE) readings. There is a lack of data regarding the validity of wearable activity monitors during graded cycling regimen and a standard resistance exercise. The present study determined the validity of eight monitors for HR compared to an ECG and seven monitors for EE compared to a metabolic analyzer during graded cycling and resistance exercise. Methods: Fifty subjects (28 women, 22 men) completed separate trials of graded cycling and three sets of four resistance exercises at a 10-repetition maximum (RM) load. Monitors included: Apple Watch Series 2 (AWS2), Fitbit Blaze, Fitbit Charge 2, Polar H7 (PH7), Polar A360, Garmin Vivosmart HR, TomTom Touch, and Bose SoundSport Headphones (BSP). HR was recorded after each cycling intensity and following each resistance exercise set. EE was recorded following both protocols. Validity was established as having a mean absolute percent error (MAPE) value of

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