1. Department of Community Medicine and Rehabilitation, Geriatric Medicine, Umeå University, Umeå, Sweden
2. Department of Psychology, Umeå University, Umeå, Sweden
3. Umeå Center for Functional Brain Imaging (UFBI), Umeå University, Umeå, Sweden
4. Physiology Section, Department of Integrative Medical Biology, Umeå University, Umeå, Sweden
5. Department of Radiation Sciences, Umeå University, Umeå, Sweden
6. Department of Public Health and Clinical Medicine, Occupational and Environmental Medicine, Umeå University, Umeå, Sweden
7. School of Sport Sciences, The Arctic University of Norway, Tromsø, Norway