**3.1. The adduction drop test (ADT)**

This is an example of a positional test for hemipelvic position in the sagittal plane. This sidelying test position facilitates a neutral hemipelvic position by flexing the hips and knees, thereby taking potential overstretch off the hamstring muscles. If the hemipelvis is in its neutral range, the ipsilateral femoral head will align with the acetabular groove allowing the femur to achieve full passive adduction as it is lowered by the clinician. If the hemipelvis is anteriorly rotated despite the test position of bent hips and knees, the femoral neck will impinge on the acetabular rim. The femur will not achieve full passive adduction (see **Figure 12**).

**Figure 12.** Adduction drop test used with permission from the Postural Restoration Institute®. Copyright 2017, www. posturalrestoration.com
