Background: While various treatments for low back pain (LBP) are prescribed, one in particular appears to be frequently self-prescribed: external lumbar bracing (i.e. elastic corsets and other similar devices). Given that the mechanical function of the back is to bear static and dynamic loads and that most LBP is thought to be mechanical in nature, there is a biological plausibility that underlies bracing as a treatment for LBP Indeed, several reports suggest lumbar bracing may be effective for some LBP patients.