Frontiers in Digital Health
Wearable measures often put people in different activity groups
Measures based on steps, distance and floors climbed agreed with device-derived intensity measures on activity group assignments for only 46.2% of participants.Measures based on steps, distance and floors climbed agreed with device-derived intensity measures on activity group assignments for only 46.2% of participants.
Cross-sectional · 983 peoplePopulations
Who was studied983 adults, mean 7.1 valid days
What changedVolume-based and intensity-based wearable measures assigned only 46.2% of participants to the same activity group
The catchPartial-wear days counted as valid could inflate day-to-day activity variability