Journal: Digital Health
Article Title: Fitbit's accuracy to measure short bouts of stepping and sedentary behaviour: validation, sensitivity and specificity study
doi: 10.1177/20552076241262710
Figure Lengend Snippet: Mean steps per day measured concurrently by Fitbit Inspire 2, Ionic and ActiGraph for adults and older adults. The mean error (ME), mean absolute error (MAE), mean percentage error (MPE) and mean absolute percentage error (MAPE) of Fitbits (with ActiGraph as a reference device) in the mean steps are presented.
Article Snippet: Multiple linear regression analyses were used to test the potential effect of the day of measurement and site of participant recruitment (Belgium vs. the Czech Republic) on the minute-level difference in step count between the Fitbit devices and ActiGraph.
Techniques: