Standing Flexion Test, Lateralizing to the Left

Purpose: Illustrate the standing flexion test on a patient with multiple problems. Note the changes in the vertebral column as the patient bends forward and has a slight rotoscoliotic “hump” at the end but the primary purpose of the exercise is to evaluate sacroiliac dysfunction. In the final stage the left PSIS is superior, indicating  the somatic dysfunction is on the left, the side on which the PSIS moves last.