1 Department of Movement, Human and Health Sciences, Università degli Studi di Roma ''Foro Italico'', Rome, Italy; Interuniversity Centre of Bioengineering of the Human Neuromusculoskeletal System, Università degli Studi di Roma "Foro Italico", Rome, Italy. Electronic address: valentina.camomilla@uniroma4.it.
2 Univ Lyon, Université Claude Bernard Lyon 1, IFSTTAR, LBMC UMR_T9406, F69622 Lyon, France; Interuniversity Centre of Bioengineering of the Human Neuromusculoskeletal System, Università degli Studi di Roma "Foro Italico", Rome, Italy.
3 Department of Movement, Human and Health Sciences, Università degli Studi di Roma ''Foro Italico'', Rome, Italy; Interuniversity Centre of Bioengineering of the Human Neuromusculoskeletal System, Università degli Studi di Roma "Foro Italico", Rome, Italy.