1. Research Unit of Medicine of Aging; Department of Experimental and Clinical Medicine; University of Florence; Florence Italy
2. Starbene SrL Rehabilitation Centre; Cerreto Guidi Italy
3. Division of Geriatric Cardiology and Medicine; Department of Heart and Vessels; Azienda Ospedaliero-Universitaria Careggi; Florence Italy
4. Functional Rehabilitation Service; Azienda Ospedaliero-Universitaria Careggi; Florence Italy