2 Laboratory Movement, Interactions, Performance, Faculty of Sport Sciences, University of Nantes, France.
3 Nantes University Hospital, Department of Geriatrics, France.
4 Laboratory Movement, Interactions, Performance, Faculty of Sport Sciences, University of Nantes, France; Center for Neuroprosthetics and Brain Mind Institute, School of Life Sciences, Swiss Federal Institute of Technology Lausanne (EPFL), Lausanne, Switzerland; Clinical Neuroscience, University Hospital of Vaud (CHUV), Lausanne, Switzerland.
5 Laboratory Movement, Interactions, Performance, Faculty of Sport Sciences, University of Nantes, France; Nantes University Hospital, Department of Geriatrics, France.
6 Laboratory Movement, Interactions, Performance, Faculty of Sport Sciences, University of Nantes, France. Electronic address: christophe.cornu@univ-nantes.fr.