Myotherapy (particularly Bonnie Prudden myotherapy) is a form of physical therapy which focuses on the assessment, treatment and rehabilitation of musculoskeletal pain and associated pathologies. The term myotherapy was originally coined by Bonnie Prudden to describe a specific type of trigger point therapy which she developed in the 1970s based on the earlier work of Travell and Simons who researched the cause and treatment of pain arising from myofascial trigger points. While based on rational principles, there is little scientific research regarding the efficacy of this therapy, so it remains controversial within the medical and academic disciplines.