The document discusses treatment of sacroiliac joint dysfunction. It describes the axes and movements of the sacroiliac joint, including nutation and counternutation. Physiologic and non-physiologic movements are outlined. Muscle functions related to sacroiliac joint movement are provided. Normal gait mechanics and pelvic girdle function are summarized. Examination techniques including positional tests, motion tests, passive mobility tests, and pain provocation tests are described. Common sacroiliac joint dysfunctions like forward and backward sacral torsion are discussed.