1Department of Neurology/Department of Orthopedic Surgery, Klinikum Bayreuth GmbH, Bayreuth, Germany
2Bayreuth Center of Sport Science, University of Bayreuth, Bayreuth, Germany
3Hertie Institute for Clinical Brain Research and Center for Integrative Neuroscience, Tübingen, Germany
4Institute for Modelling and Simulation of Biomechanical Systems, University of Stuttgart, Germany
5Dynamic Locomotion Group, Max Planck Institute for Intelligent Systems, Stuttgart, Germany
6Department of Mechanical Engineering, KU Leuven, Belgium
7Institute of Sport Sciences, Friedrich Schiller University Jena, Jena, Germany