1. Department of Physical Medicine and Rehabilitation, Legs and Walking Lab of Shirley Ryan AbilityLab, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
2. Université Côte d’Azur, Nice, France
3. Department of Mechanical Engineering, Department of Biomedical Engineering, and Department of Physical Medicine and Rehabilitation, Legs and Walking Lab of Shirley Ryan AbilityLab, McCormick School of Engineering, and Feinberg School of Medicine, Northwestern University, Chicago, IL, USA