Website URL https://www.nu-spine.com/lower-back-lumbar-sacrum About US Soft tissues around the spine also play a key role in lower back pain. There is a large and complex group of muscles that work together to support the spine, help hold the body upright and allow the trunk of the body to move, twist and bend in many directions. A strained muscle in your lower back can be quite painful. These are typical symptoms you might experience: - your back hurting more when you move, less when you stay still - pain in your back... read full review »