1. Department of Occupational Health Science and Psychology, Faculty of Health and Occupational Studies, University of Gävle, Gävle, Sweden
2. Department of Behavioural Sciences and Learning, Division of Education and Sociology, Linköping University, Linköping, Sweden
3. Department of Public Health and Sports Science, Faculty of Occupational and Health Sciences, University of Gävle, Gävle, Sweden