作者单位:Department of Neuro-paediatrics, UZ Leuven, Belgium[1]Department of Rehabilitation, UZ-Leuven, Belgium[2]Clinical Motion Analysis Laboratory, University Hospital Leuven, UZ Pellenberg, Weligerveld 1, 3212[3]Department of Paediatric Orthopaedics, UZ Pellenberg, Belgium, Department of Musculoskeletal[4]