1. Department of Physiotherapy, OsloMet—Oslo Metropolitan University, PO Box 4 St. Olavs Plass, Oslo, Norway
2. School of Health and Life Sciences, Glasgow Caledonian University, Glasgow, UK
3. Djavad Mowafaghian Centre for Brain Health, Centre for Hip Health and Mobility, Vancouver Coastal Health Research Institute, University of British Columbia, Vancouver, Canada