1. J. Nijs, PT, MT, PhD, Pain in Motion Research Group, Departments of Human Physiology and Physiotherapy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, and Department of Physical Medicine and Rehabilitation, University Hospital Brussels, Brussels, Belgium. Mailing address: Vrije Universiteit Brussel, Medical Campus Jette, Building F-Kine, Laarbeeklaan 103, BE-1090 Bruss
2. M. Meeus, PT, PhD, Pain in Motion Research Group, Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Universiteit Antwerpen, Antwerp, Belgium, and Department of Rehabilitation Sciences and Physiotherapy, Ghent University, Ghent, Belgium.
3. B. Cagnie, PT, MT, PhD, Department of Rehabilitation Sciences and Physiotherapy, Ghent University.
4. N.A. Roussel, PT, MT, PhD, Pain in Motion Research Group, Departments of Human Physiology and Physiotherapy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, and Pain in Motion Research Group, Rehabilitation Sciences and Physiotherapy, Faculty of Medicine and Health Sciences, Universiteit Antwerpen.
5. M. Dolphens, PT, PhD, Department of Rehabilitation Sciences and Physiotherapy, Ghent University.
6. J. Van Oosterwijck, PT, PhD, Pain in Motion Research Group, Departments of Human Physiology and Physiotherapy, Faculty of Physical Education & Physiotherapy, Vrije Universiteit Brussel, and Department of Rehabilitation Sciences and Physiotherapy, Ghent University.
7. L. Danneels, PT, MT, PhD, Department of Rehabilitation Sciences and Physiotherapy, Ghent University.