A multi-sensor human gait dataset captured through an optical system and inertial measurement units

This multi-sensor gait dataset comprises inertial and optical motion data from 25 subjects free of lower-limb injury, aged between 18 and 47 years. A smartphone and an IMU were attached to one of the subject's legs to capture accelerometer data, and 42 reflexive markers were taped over the whole body to record three-dimensional trajectories. The participants were instructed to walk on a straight-level walkway at their normal pace. Ten trials for each participant were recorded and preprocessed in each of two sessions, performed on different days. This amounts to 500 trials of three-dimensional trajectories, 500 trials of accelerations from the IMU, and 500 trials of accelerations from the smartphone.