Efficacy of low level laser therapy and intramuscular electrical stimulation on myofascial pain syndrome.

Background: Myofascial pain syndrome (MPS) which is an important cause of musculoskeletal pain has shown a dramatic increase in recent years.

Objectives: We aimed to evaluate the efficacy of intramuscular electrical stimulation therapy (IMS) and low-level-lasertherapy (LLLT) in patients with MPS.

Methods: Patients were randomly divided into three groups.