The devices used in this study included the Withings Activite, the
wGT3X-BT from ActiGraph (Pensacola, Florida, United States of America), and the
PiezoRxD from StepsCount (Deep River, Ontario, Canada).
The Withings Activite records step count at a per minute level. The
ActiGraph wGT3X-BT captures high-resolution raw acceleration data. This device
has been well-validated and used for assessing physical activity (PA) under
free-living conditions[9 (link)]. The wGT3X-BT
(referred to throughout the rest of the paper as the Actigraph) and other
similar devices from ActiGraph have also been used in several large-scale
epidemiological studies[10 (link), 11 (link)]. The Actigraphs were set to have a
sampling rate of 30Hz during deployment. The PiezoRxD (referred to throughout
the rest of the paper as the Pedometer) from StepsCount is a medical-grade PA
monitor and has been validated for measuring step count and moderate-to-vigorous
PA in both laboratory settings and free-living conditions[12 (link), 13 (link)].
wGT3X-BT from ActiGraph (Pensacola, Florida, United States of America), and the
PiezoRxD from StepsCount (Deep River, Ontario, Canada).
The Withings Activite records step count at a per minute level. The
ActiGraph wGT3X-BT captures high-resolution raw acceleration data. This device
has been well-validated and used for assessing physical activity (PA) under
free-living conditions[9 (link)]. The wGT3X-BT
(referred to throughout the rest of the paper as the Actigraph) and other
similar devices from ActiGraph have also been used in several large-scale
epidemiological studies[10 (link), 11 (link)]. The Actigraphs were set to have a
sampling rate of 30Hz during deployment. The PiezoRxD (referred to throughout
the rest of the paper as the Pedometer) from StepsCount is a medical-grade PA
monitor and has been validated for measuring step count and moderate-to-vigorous
PA in both laboratory settings and free-living conditions[12 (link), 13 (link)].
