1. Department of Public Health and Sport Sciences, Faculty of Social and Health Sciences, Inland Norway University of Applied Sciences, Elverum, Norway.
2. Department of Rheumatology, Center for Treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway.
3. Game School-Department of Game Development, Inland Norway University of Applied Sciences, Hamar, Norway.
4. Department of Rheumatology, Department of Social Work and Guidance, Faculty of Health and Social Sciences, Inland Norway University of Applied Sciences, Lillehammer, Norway.
5. Department of Nursing and Health Sciences, Centre for Health and Technology, University of South-Eastern Norway, Drammen, Norway.