Biomechanics of Elongation of the Spine POSTERIOR AND RIGHT LATERAL VIEWS OF THE SPINE. PERMISSION DR. JOE MUSCOLINO. KINESIOLOGY – THE SKELETAL SYSTEM AND MUSCLE FUNCTION, 3RD EDITION (ELSEVIER, 2017). Elongation of the spine is often spoken of by Pilates instructors as one of the objectives for clients to achieve. But what exactly is elongation of the spine and how is it achieved biomechanically? …