A therapeutic apparatus for therapeutically treating an individual, which includes an upper support, a frame for supporting an inner working assembly and attaching thereto lobe and seat lever controls and a switch panel for motor control, and a structural base for supporting the upper support and frame and attaching thereto a leg rest. The inner working assembly includes rightward and leftward segments each having fore and aft lobes connected together by a hinge mechanism and in part by a flexible guide rail and a plurality of roller assemblies each connected to chains to propel the roller assemblies, with the assistance of the motor, over the flexible guide rails. The lobe lever control changes the geometric profile of the flexible guide rails to correspond with the individual's spine, whereas the seat lever control changes the position of an adjustable lower support to allow the roller assemblies to motion the pelvic region upward and downward and inward and outward to effect traction of the spine.