IRCT20200507047328N1 IRCT 2020-05-16 Esfahan University of Medical Sciences effect of dry needling versus low-level laser therapy in the treatment of myofascial trigger points The effectiveness of dry needling versus low-level laser therapy in the treatment of myofascial trigger points of the upper trapezius muscles of patients referring to physical medicine clinics 2019-03-20 anticipated 78 Complete https://irct.ir/trial/48009 interventional Randomization: Not randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Blinding description: Due to the nature of the intervention and the lack of use of blinding platforms at the level of physician and patient, it cannot be performed. Only a person who performs statistical analysis can be kept blind from assigning groups. N/A myofascial trigger points syndrome. Intervention 1: Intervention group: acupuncture. For them, 4 dry needling sessions were performed on the trigger points two days apart. In trapezius muscle treated with dry needling, we mark the points of the muscle that have the most pain as trigger points. For dry needling, special thin needles with a length of 25 mm and a thickness of 0.25 were used. Intervention 2: Intervention group: low-power laser therapy. For them 3 sessions for two weeks, three days each time from the novin device, type LASER 860x, class I type BF 6 joules per square centimeter, average power of 100 MW for each point for 3 minutes done. Intervention 3: Control group: stretching exercises .Control group: Stretching exercises. All patients - including this group - underwent upper trapezius muscle stretching exercises 3 times a day (morning, evening and night), each time for 30 seconds and for two weeks. 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 There is no further information