1. Department of Human Movement Sciences Vrije Universiteit Amsterdam Amsterdam the Netherlands
2. Department of Rehabilitation Sciences KU Leuven LeuvenBelgium
3. Clinical Motion Analysis Laboratory University Hospitals Leuven Pellenberg Belgium
4. Department of Mechanical Engineering University of Washington Seattle WAUSA
5. Henry M. Jackson Foundation for the Advancement of Military Medicine Bethesda MD USA
6. Department of Development and Regeneration University of Leuven LeuvenBelgium
7. Department of Orthopedics University Hospitals Leuven Leuven Belgium