An abdominal muscle and spine exercising device includes a frame having a top and a bottom surface with first and second bladders disposed on the top surface for bearing directly against thoraco-lumbar and lumbo-sacral vertebrae of a users spine in vectored directions in order to enhance an elliptical arch in the lower spine. A second arch projection is disposed on the bottom surface of the frame for enabling the frame and bladders to be rocked by the user in a transverse direction to a longitudinal axis of the frame.