1. Research Department Health and Lifestyle, University of Applied Sciences, Utrecht, the Netherlands
2. Cardiovascular Rehabilitation Unit, Department of Rehabilitation Sciences, Katholieke Universiteit Leuven, Heverlee, Belgium
3. Centre for Prevention and Health Services Research, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
4. Department of Geriatric Medicine, University Medical Centre Utrecht, Utrecht, the Netherlands
5. BCN NeuroImaging Centre, University of Groningen, Groningen, The Netherlands