IRCT20190514043588N1 IRCT 2019-12-29 Nikan hospital Comparison of the Effects of Needling and Shock Wave Therapy on Active Trigger Points Effect of Dry Needling Versus Shock Wave Therapy on Pain and Dysfunction Following Active Trigger Points in Upper Trapezius Muscle 2019-09-23 anticipated 48 Complete https://irct.ir/trial/40744 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Patients were randomly divided into one of three groups under study using encoded pocket, Blinding description: The participants are blind to the treatment. N/A Myofascial pain syndrome. Intervention 1: Dry Needling : In this group, needle enters the upper trapezius muscle trigger point and stays in the muscle for 5 minutes. Two treatment sessions with a 48 hour interval during a week. Intervention 2: Shock Wave Therapy: In this group, shockwave with a power of 38 mJ / mm2 and frequency of 10 Hz is applied to the upper trapezius muscle with 1000 impulses and two sessions of therapy with 48 h intervals during the week. Intervention 3: Placebo Shock Wave Therapy: In this group, a shockwave with a power of 38 mJ / mm2 and a frequency of 10 Hz is applied to the upper trapezius muscle without any impulse and two treatment sessions with 48 h intervals during the week. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is No more information.