The lumbar spine, or lower back, take a lot of stress and strain throughout the day. The spine provides stabilization for the entire body and the lumbar spine bears the brunt of much of the movement and activity. This wear and tear shows up as lower back pain in many people. The American Chiropractic Association estimates that 31 million Americans have low back pain at some point in their lives. In fact, the leading cause of disability is low back pain – not only in the U.S. but worldwide.