More than 80 percent of people will experience low back pain at some point in their lifetime. This post, adapted from Brian Richey’s Back Exercise: Stabilize, Mobilize and Reduce Pain explores what non-specific low back pain is, what causes it and the exercises you can perform to treat it. What is non-specific low back pain? Non-specific low back pain is defined as low back pain that is not attributable to a recognisable, known specific pathology (e.g. infection, tumor, osteoporosis, lumbar spine fracture, structural deformity, inflammatory disorder, radicular syndrome, or cauda equina syndrome). In other words, there’s no specific source causing the pain – it could be caused by a number of different factors. Despite being so common, the number of people who don’t go to the doctor when they suffer from low back pain outnumber those who do go to the doctor by two to one.  Low back pain affects men and women, young and old. Low back pain can be acute (less than 6 weeks), subacute (6 to 12 weeks), and chronic (more than 12 weeks). In only about …