Apparatus and methods for therapeutically treating at least a portion of a body. Apparatus and methods according to various embodiments of the disclosure include a platform for supporting at least a portion of a body. The platform includes at least one plate, a drive lever supported from the plate, and a damping member including a cantilever spring in contact with the drive lever. The platform is actuated at a first frequency. Next, the damping member is oscillated to create a force with a second frequency. Then, the force is distributed to at least a portion of the platform.