axivity-ax6-left-forearm-nondominant-v2

6-axis actigraphy (translation and rotation) using Axivity AX6 (similar to AX3 used in UK BioBank), configured with 100Hz sampling frequency, 16bit resolution and 2000dps gyro/rotation. Attached with a velcro to the interior of a cotton wrist band with arrow facing down towards the ground/back when arms are in a natural position along the body, on the left forearm (non-dominant arm). Started acquisition in mid-March 2022 up to March 2023. The difference with the v1 (first year) acquisition is that the device is now worn INSIDE the cotton wrist band, instead of outside, to be more robust against detachment during motion in day-to-day activities, especially outdoors. Hence, the light sensor and ambient temperature sensor should be considered unusuable. Each file represents one acquisition session of about 1 week. Multiple files can be concatenated to study a longer time period.