Evaluating Dry Needling Effects on Muscle Pain and Function in Adults with Trapezius Trigger Points

What this Trial Is About

Researchers are evaluating how dry needling can help reduce pain for people who have Myofascial Pain Syndrome with trigger points in the trapezius muscle, which is located over the back of the neck and shoulders. The study also aims to see how well three different testsElectrical Impedance Myography EIM, Myofiber Threshold Tracking TT, and Ultrasound UScan detect changes in the muscle related to dry needling treatment. Participants will be randomly assigned to receive either dry needling or a placebo treatment that does not enter the trigger point. During the study, participants will attend two clinic visits. The first visit includes screening, muscle measurements using EIM, US, and TT, pain response testing with algometry, questionnaires about pain and mood, and the dry needling or sham procedure. After this visit, participants will complete daily pain surveys and reapply a marker on the treated muscle spot at home. The second visit, about two weeks later, involves repeating the imaging and muscle tests, completing additional questionnaires, and reviewing any adverse events and pain medication use. Participants will be involved in muscle testing, pain surveys, questionnaires, and treatments over approximately two weeks. The main measurement is the excitability threshold tracking from enrollment until the end of follow-up. Safety and changes in pain and muscle condition will be monitored throughout. The study is sponsored by Beth Israel Deaconess Medical Center and uses detailed assessments to understand the effects of dry needling on muscle pain and function.

The Impact of Dry Needling on Electrophysiological and Ultrasound-based Biomarkers for Myofascial Pain