Key facts
- Signals
- ppg, accel, gyro, skin-temp
- Reference Labels
- activity, sqi
- Devices
- actigraph-leap
- Sampling Rates
- PPG dual-channel 25 Hz; accel 128 Hz; gyro 128 Hz; wrist skin temp 1/min; embedded accel 32 Hz for Freedson METs
- Subjects
- 50
- License
- CC BY 4.0
Summary
IMU50 (La Fratta / Calisti / Bigelli et al.): multiday high-resolution wrist IMU+PPG under unrestricted free-living. Zenodo concept DOI 10.5281/zenodo.21468409 (version DOI 10.5281/zenodo.21468410). Intended for (1) self-supervised IMU representation learning and (2) supervised metabolic / HR / morphology tasks.
Updated: Oct 5, 2026