Physical activity assessment objective
7th March 2022
Soren Brage, University of Cambridge
Biaxial accelerometer (original firmware disabled one axis and the device was thus launched as a uniaxial accelerometer). MEMS sensor. Raw sampling frequency 30Hz. Data stored as axis-specific counts over user-defined epoch period. These data are filtered by digital algorithms in firmware to emulate the response of its predecessor, the analogue Actigraph 7164.