Institution: | (1) Mechanical Engineering Department, Laboratory of Applied Mechanics and Reliability Analysis, Swiss Federal Institute of Technology, Lausanne, Switzerland;(2) Hôpital Orthopédique de la Suisse Romande, Lausanne, Switzerland;(3) M.E. Müller Institute for Biomechanics, University of Bern, Bern, Switzerland;(4) Les Bosquets de Paudille 5, 1803 Chardonne, Switzerland |