Cross-day SEMG dataset.zip

The dataset is a 4-channel SEMG dataset containing 12 days of SEMG data collected from 8 healthy men. The experiment was designed with seven classes of common gestures, including wrist extension (WE), wrist flexion (WF), wrist radial deviation (WRD), wrist ulnar deviation (WUD), wrist supination (WS), wrist pronation (WP), and clenched fist (CF). The sEMG signals were acquired using bipolar Ag/AgCl electrodes. Before applying the electrodes, the subject's skin was cleaned with an alcohol wipe to ensure the electrodes adhered and the accuracy of signal acquisition was achieved.
Each subject performed one experiment per day. In each acquisition experiment, each type of gesture was performed 100 times with a 10-minute break between each action. The experiments lasted for 12 days, and each subject acquired a total of 12 corresponding non-identically distributed datasets, named with the number of days of acquisition. The sampling frequency of the experimental equipment was 1000 Hz.