High- versus low-energy extracorporeal shock-wave therapy for myofascial pain syndrome of upper trapezius: A prospective randomized single blinded pilot study

This 2018 prospective randomized single-blinded pilot study evaluated the efficacy of high-energy (0.210 mJ/mm²) versus low-energy (0.068 mJ/mm²) extracorporeal shock wave therapy (ESWT) in 30 patients with myofascial pain syndrome (MPS) of the upper trapezius. Both groups received 1,500 pulses of ESWT once weekly for two weeks. Outcomes assessed included