When most people think of McKenzie method, they think of extension based exercises and herniated disks. That is but the tip of the iceberg. A true understanding of the system that McKenzie offers can provide tools to help clinicians both diagnose and treat various conditions in the spine and extremities. In a recent post, Dr. E from The Manual Therapist reviews exactly what directional preference is and why we sometimes need to test/treat with sustained or repeated motions. Directional preference refers to motion in any body part that needs to be sustained or repeated to end range in order to improve ROM, pain, DTRs, strength, and/or function. Dr. E provides common treatment methods throughout the spine in this post. He doesn't discuss loading in the extremity as much here, but that isn't the point. The purpose of this article is to raise the importance of determining if/where the directional preference lies, and how to treat it. Definitely worth checking out.