1Medical College, Institute of Health Sciences, University of Rzeszow, Rzeszów, Poland 2Excelsior Health and Rehabilitation Hospital, Iwonicz Zdrój, Poland 3EGZOTech Sp. z o.o., Gliwice, Poland 4Faculty of Automatic Control, Electronics, and Computer Science, PhD School, Silesian University of Technology, Gliwice, Poland DOI 10.7717/peerj.17903 Academic Editor Jafri Abdullah Subject Areas Neurology, Rehabilitation Keywords Luna EMG robot, Proprioception, Stroke, Rehabilitation, Upper limb,...