Accelerometer-assessed Physical Activity in Epidemiology: Are Monitors Equivalent?
Alex V Rowlands, Evgeny M Mirkes, Tom Yates, Stacey Clemes, Melanie Davies, Kamlesh Khunti, Charlotte L Edwardson
Med Sci Sports Exerc | Published : 2018
PURPOSE: Accelerometers are increasingly being used to assess physical activity in large-scale surveys. Establishing whether key physical activity outcomes can be considered equivalent between three widely used accelerometer brands would be a significant step toward capitalizing on the increasing availability of accelerometry data for epidemiological research. METHODS: Twenty participants wore a GENEActiv, an Axivity AX3, and an ActiGraph GT9X on their nondominant wrist and were observed for 2 h in a simulated living space. Participants undertook a series of seated and upright light/active behaviors at their own pace. All accelerometer data were processed identically using open-source softwa..View full abstract