title: A MATLAB-based graphical user interface for the identification of muscular activations from surface electromyography signals.
abstract: In this paper a graphical user interface (GUI) built in MATLAB® environment is presented. This interactive tool has been developed for the analysis of superficial electromyography (sEMG) signals and in particular for the assessment of the muscle activation time intervals. After the signal import, the tool performs a first analysis in a totally user independent way, providing a reliable computation of the muscular activation sequences. Furthermore, the user has the opportunity to modify each parameter of the on/off identification algorithm implemented in the presented tool. The presence of an user-friendly GUI allows the immediate evaluation of the effects that the modification of every single parameter has on the activation intervals recognition, through the real-time updating and visualization of the muscular activation/deactivation sequences. The possibility to accept the initial signal analysis or to modify the on/off identification with respect to each considered signal, with a real-time visual feedback, makes this GUI-based tool a valuable instrument in clinical, research applications and also in an educational perspective.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Mengarelli
authors.forename: Stefano
authors.initials: S
authors.lastname: Cardarelli
authors.forename: Federica
authors.initials: F
authors.lastname: Verdini
authors.forename: Laura
authors.initials: L
authors.lastname: Burattini
authors.forename: Sandro
authors.initials: S
authors.lastname: Fioretti
authors.forename: Francesco
authors.initials: F
authors.lastname: Di Nardo
mesh_terms: D000465:Algorithms; D003196:Computer Graphics; D004576:Electromyography / Q000379:methods*; D006801:Humans; D018482:Muscle, Skeletal / Q000502:physiology; D009142:Musculoskeletal Physiological Phenomena; D012815:Signal Processing, Computer-Assisted; D012984:Software; D014584:User-Computer Interface