Dual-sensor accelerometry (Axivity AX3, 50 Hz, ±8 g) from the right thigh and lower
back in 31 healthy adults, with activity ground truth for 12 activity types including
walking, running, stair climbing, cycling, and postural activities. Recordings are
1–2.5 hours per participant of semi-free-living activity. Harmonized from the HARTH
GitHub release into per-subject parquet — one row per raw accelerometer… See the full description on the dataset page:
https://huggingface.co/datasets/josefheidler/har_adults_2021-harth.
