1. Department of Health, Medicine and Caring Sciences, Linköping University , Campus US, Building 511, SE-58183, Linköping , Sweden
2. Centre for Clinical Research Sörmland, Uppsala University , SE-631 88 Eskilstuna , Sweden
3. School of Health and Welfare, Department of Medicine and Sport Sciences, Dalarna University , Falun 791 88 , Sweden
4. School of Health, Care and Social Welfare, Department of Physiotherapy, Mälardalen University , Vasteras 721 23 , Sweden
5. Department of Cardiology, Linköping University , Linköping , Sweden