1. Department of Biomedical, Dental Sciences and Morphological and Functional Images, University of Messina, 98125 Messina, Italy
2. IRCCS, Istituto Auxologico Italiano, Orthopedic Rehabilitation Unit, Research Laboratory in Biomechanics and Rehabilitation, San Giuseppe Hospital, Piancavallo, 28921 Verbania, Italy
3. Department of Surgical Sciences, Physical and Rehabilitation Medicine, University of Torino, 10121 Torino, Italy
4. Department of Clinical and Biological Sciences, University of Turin, 10043 Torino, Italy
5. Department of Neurological Rehabilitation, Medical University of Lodz, Milionowa 14, 93-113 Lodz, Poland
6. IRCCS, Istituto Auxologico Italiano, Unit of Neurology and Neurorehabilitation, San Giuseppe Hospital, Piancavallo, 28921 Verbania, Italy