1. Geriatric Department; University Hospital; Strasbourg France
2. Department of Physiology and EA-3072; Faculty of Medicine; Strasbourg University; Strasbourg France
3. Health and Wellbeing Academy; Anglia Ruskin University; Cambridge UK
4. Geriatric and Rehabilitation Geriatric Division; University Hospital of Lausanne; Lausanne Switzerland
5. Functional Explorations Department; University Hospital; Strasbourg France