BACK PAIN 101: Why Your Muscles "Rebel" After Yard Work That sudden sharp pain after a weekend of physical activity? Here's what's happening inside your back. THE MECHANISM: Soft tissues supporting your spine - muscles and ligaments - get overstretched, torn, or strained from: Lifting heavy objects with a twist Hours of poor posture at your desk Repetitive movements your body isn't conditioned for Looking at this real cadaver dissection of the right side of the back (trapezius and latissimus dor

3.5K views · 138 reactions | Anatomy 101 - the lumbar erectors The Erector Spinae muscle actually consists of three columns of muscles, the Iliocostalis, Longissimus, and Spinalis, each running parallel on either outer side of the Vertebra and extending from the lower back of the skull all the way down to the Pelvis. | OMT Training | Facebook