The Stork Test - Assessing the Sacroiliac joint

The Stork Test The athlete stands with their back to the therapist, holding onto something for support. The posterior superior iliac spine (PSIS) and a spinous process exactly horizontal to it are marked with a small cross. The therapist places one thumb on the PSIS and the other thumb on the spinous process opposite. The athlete raises one knee up as high as it will go. If the Sacroiliac joint is functional then the posterior-superior iliac spine will move down under its original position. T