Abstract: There is disclosed a therapeutic exercise in which the patient lies in a supine position on a flat surface, with a long, smooth cylindrical roller having a constant compressed diameter from about 2 to about 4 inches throughout its length beneath the patient's back. The roller should be of sufficient length to span laterally across the entire patient's back and shoulders. The patient's slowly rolls his body over the roller from the sacrum along the lumbar and thoracic vertebrae by the pushing against the support surface with his feet and hands, and while shifting or rocking his body, side-to-side. The roller fixture includes a pair of end brackets which rotationally support a pair of end shafts of the roller and includes a frictional brake to restrain the rotation of the roller.