1. Pediatric Rehab Research Group, Rehabilitation Center Affoltern am Albis, University Children’s Hospital Zurich, Affoltern am Albis, Switzerland;
2. Regional Group Zurich Foundation Cerebral Palsy (RGZ), Zurich, Switzerland;
3. Institute for Physiotherapy, Zurich University of Applied Studies, ZHAW, Winterthur, Switzerland;
4. Centre for Health, Activity and Rehabilitation Research, Queen Margaret University, Edinburgh, Scotland