1. Faculty of Sport and Health Sciences, University of Jyväskylä , Jyväskylä , Finland
2. Turku PET Centre, University of Turku and Turku University Hospital , Turku , Finland
3. Cardiovascular Research Group, Division of Cardiology , Oulu University Hospital, University of Oulu , Oulu , Finland
4. Department of Biostatistics , University of Turku , Turku , Finland
5. The UKK Institute for Health Promotion Research , Tampere , Finland
6. Faculty of Medicine and Health Technology, Tampere University , Tampere , Finland
7. Rydberg Laboratory of Applied Sciences, University of Halmstad , Halmstad , Sweden