1. Gerontology Research Center, University of Jyväskylä, Jyväskylä, Finland,
2. Department of Health Sciences, University of Jyväskylä, Jyväskylä, Finland,
3. Research and Development, Mikkeli University of Applied Sciences, Mikkeli, Finland,
4. Department of Medical Rehabilitation, Oulu University Hospital, Oulu, Finland,
5. Center for Life Course Epidemiology Research, University of Oulu, Oulu, Finland
6. Department of Physical and Rehabilitation Medicine, Central Finland Central Hospital, Jyväskylä, Finland,
7. GeroCenter Foundation for Aging Research and Development, Jyväskylä, Finland,