1. Sapienza University of Rome,Department of Basic and Applied Engineering Sciences,Rome,Italy
2. Institute for Biomechanics, Laboratory for Movement Biomechanics ETH Zurich,Zurich,Switzerland
3. Institute for Human Centred Engineering – Biomedical Eng. Lab, Bern University of Applied Sciences,Biel,Switzerland
4. IRCCS Istituto Ortopedico Galeazzi Laboratory of Biological Structures Mechanics (LABS),Milan,Italy