August 3, 2018 Katie Meredith Active Rehab, Educational, Personal Training, Vancouver Movement Snacks for Lower Backs August 3, 2018 Katie Meredith Active Rehab, Educational, Personal Training, Vancouver The lower back is a complex of various structures that meet and interact: vertebrae, discs, the sacroiliac joint, the pelvis, hips; as well as an array of connective tissue and muscle that transmits force between these structures.