Electromyography Analysis of Human Activities Database 4

A group of 10 healthy subjects without any upper limb pathologies participated in the data collection process. A total of 8 activities are performed by each subject. The measurement setup consists of a 5-channel Noraxon Ultium wireless sEMG sensor system. Representative muscle sites of the forearm are identified and self-adhesive Ag/AgCl dual electrodes are placed. The signal (sEMG) recorded during an ADL activity is segmented into functional phases: 1) rest 2) action and 3) release. During the rest phase, the subject is instructed to rest the muscles in a natural way. In the action phase, the subject is asked to perform the relevant ADL and in the release phase, the subject has to bring the muscles to a rest state smoothly avoiding any sudden movements. In these measurements, subjects are directed to execute each activity in four different arm positions and three different body postures. So each activity is performed in 4 × 3 = 12 different scenarios.