1 International Senghor University, Alexandria, Egypt; LAPCOS, Université Côte d'Azur, Nice, France. Electronic address: palazz@free.fr.
2 Nice University Hospital, Rehabilitation, Autonomy and Aging Unit, Nice 2030 Aging Well Project, Nice, France; Cimiez Hospital, CoBTek EA7276, Nice, France.
3 Nice University Hospital, Rehabilitation, Autonomy and Aging Unit, Nice 2030 Aging Well Project, Nice, France; Cimiez Hospital, CoBTek EA7276, Nice, France; Université Côte d'Azur, Inserm U1081, CNR UMR 7284, Nice, France.