Universite d'Orleans 1 article published in JoVE Neuroscience Postural Organization of Gait Initiation for Biomechanical Analysis Using Force Platform Recordings Arnaud Simonet1,2,3, Arnaud Delafontaine2,3,4, Paul Fourcade2,3, Eric Yiou2,3 1LADAPT Loiret, Centre de Soins de Suite et de Réadaptation, 2CIAMS, Université Paris-Saclay, 3 This paper describes the material and method developed to investigate the postural organization of gait initiation. The method is based on force platform recordings and on the direct principle of mechanics to compute center of gravity and center of pressure kinematics.