Often it can be a case that lower back pain is compounded by certain structures getting tight which makes it difficult to allow the lower back to be in the correct anatomical position. Your Quadratus Lumborum (QL) and Latissimus Dorsi muscles are two such muscles that can be inhibiting your lower back to be neutral! You QL attachment points are the Iliac crest of your hip and the twelfth rib and the tranverse processes of your lumbar vertebrae L1-L4. This stretch is great for stretching these structures!