Chiro.Org Blog:

Over the past decade there has been growing scientific evidence supporting the clinical efficacy [6-10] and effectiveness [11,12] of manual therapies in treating LBP. While clinical evidence supporting the efficacy and effectiveness of manual therapies has emerged, less scientific evidence has been offered to explain the effects and mechanisms underlying these treatments. The lack of a mechanistic underpinning hinders acceptance by the wider scientific and health-care communities, and it also limits the development of rational strategies for using manipulative therapies.