1. Department of Internal Medicine, Section of Gerontology and Geriatrics, Leiden University Medical Center , Albinusdreef 2, PO Box 9600, 2300 RC Leiden , The Netherlands
2. Department of Rehabilitation Medicine, Leiden University Medical Center , Albinusdreef 2, PO Box 9600, 2300 RC Leiden , The Netherlands
3. BioMechanical Engineering, Delft University of Technology , Mekelweg 2 (building 34), 2628 CD Delft , The Netherlands
4. Department of Public Health and Primary Care, Leiden University Medical Center , Albinusdreef 2, PO Box 9600, 2300 RC Leiden , The Netherlands
5. Leyden Academy on Vitality and Ageing , Rijnsburgerweg 10, 2333 AA Leiden , The Netherlands
6. Department of Cardiology, Leiden University Medical Center , Albinusdreef 2, PO Box 9600, 2300 RC Leiden , The Netherlands
7. Netherlands Heart Institute , Moreelsepark 1, 3511 EP Utrecht , The Netherlands