Estimating physical activity and sedentary behaviour in a free-living environment: A comparative study between Fitbit Charge 2 and Actigraph GT3X.

Marie-Louise Kirkegaard MikkelsenGabriele Berg-BeckhoffPeder FrederiksenGraham HorganRuairi O'DriscollAntónio L PalmeiraSarah E ScottJames StubbsBerit L HeitmannSofus C Larsen

Published in: PloS one (2020)

Moderate to substantial differences between devices were found for most outputs, which could be due to differences in algorithms. Caution should be taken if replacing one device with another and when comparing results.

Keyphrases

physical activity
machine learning
high intensity
deep learning
body mass index
solar cells
sleep quality
depressive symptoms