1. Researcher, Research Group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences, Groningen, the Netherlands
2. Senior Researcher, Department of Metamedica, VU Medical Center, Amsterdam, the Netherlands
3. Professor of Allied Health Care and Ageing, Institute of Human Movement Sciences, University Medical Center Groningen, the Netherlands, and Professor, Research Group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences
4. Professor of Health Care and Nursing, Department of Rehabilitation Medicine, University Medical Center Groningen, and Professor, Research Group Healthy Ageing, Allied Health Care and Nursing, Hanze University of Applied Sciences