1Unit of Geriatric Medicine, Department of Community Medicine and Rehabilitation, Umeå University, 90187 Umeå, Sweden
2Section of Sustainable Health, Department of Public Health and Clinical Medicine, Umeå University, 90187 Umeå, Sweden
3School of Sport Sciences, UiTArctic University of Norway, Postboks 1621, 9509 Alta, Norway
4Department of Care Sciences, Malmö University, 20506 Malmö, Sweden
5Division of Clinical Geriatrics, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Plan 7, 14183 Huddinge, Sweden
6Theme Aging, Karolinska Univeristy Hospital, 14186 Stockholm, Sweden
7Research and Development Unit, Stockholm Sjukhem, Mariebergsgatan 22, 11219 Stockholm, Sweden