1. Department of Engineering, Research Unit of Measurements and Biomedical Instrumentation, Università Campus Bio-Medico di Rome, Rome, Italy
2. Department of Movement, Human and Health Sciences, University of Rome “Foro Italico,”, Rome, Italy
3. Department of Engineering, Research Unit of Measurements and Biomedical Instrumentation, Fondazione Policlinico Universitario Campus Bio-Medico, Rome, Italy