1. Department of Rehabilitation Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands;
2. Center for Human Movement Sciences, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands;
3. Department of Oral and Maxillofacial Surgery, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands;
4. Center for Sports Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands