Western Norway University of Applied Sciences, Department of Sport, Food and Natural Sciences, Sogndal, Norway; Norwegian School of Sport Sciences, Department of Sports Medicine, Oslo, Norway. Electronic address: Mette.Stavnsbo@hvl.no. Western Norway University of Applied Sciences, Department of Sport, Food and Natural Sciences, Sogndal, Norway. Western Norway University of Applied Sciences, Department of Sport, Food and Natural Sciences, Sogndal, Norway; Norwegian School of Sport Sciences, Department of Sports Medicine, Oslo, Norway. Amsterdam University Medical Centers, Amsterdam Public Health research institute, Department of Public and Occupational Health, Amsterdam, the Netherlands. Norwegian School of Sport Sciences, Department of Sports Medicine, Oslo, Norway. Western Norway University of Applied Sciences, Center for Physically Active Learning, Faculty of Education, Arts and Sports, Sogndal, Norway.