This apparatus for mobilization of the body comprises a receiving platform which is movable in relation to a fixed chassis, and which is designed to support a subject who is to be treated in a standing position. The platform is connected to the chassis by a double pivot connection, and it is driven by an oscillating movement in relation to an axis passing substantially through its center, by means of actuators each connected by a pivot connection to a shaft connected to said platform, said actuators themselves being articulated on the chassis.