Comparison of High Power Pain Threshold Ultrasound and Ischemic Compression Techniques for the Treatment of Latent Myofascial Trigger Points: A Randomized Controlled Study

Abstract

Abstract Objective Myofascial trigger points (MTrPs) have been defined as discrete and hyperirritable areas located within a taut band of skeletal muscle or fascia, which when compressed produce pain, tenderness, dysfunction and autonomic phenomena. The treatment techniques aimed to return the fiber groups to their optimum length and end plates to their optimum function. Ischemic Compression (IC) and of High Power Pain Threshold Ultrasound (HPPT-US) are among the treatment techniques used for MTrPs. The aim of the current study is to compare the efficacy of IC and HTTP-US which was applied in different ways on MTrPs treatment. Patients and Methods This is a randomized prospective study conducted with 153 participants have at least three latent trigger points. Participants received HPPT-US technique in which the intensity is kept constant at the pain level, HPPT-US technique in which the intensity is kept constant at half the pain level or IC. Outcome measures were the Visual Analog Scale, Beck Depression Inventory, Neck Pain and Disability Scale, number of deactivated MTrPs and Pain Pressure Threshold (PPT). Results Pain, psychological status and disability improved in each group; there was no significant difference between the groups (p>0.05). PPT increased in each group; a significant difference was found between the groups (p<0.05). IC was slightly more effective than HPPT-US. Conclusion Our results have shown that HPPT-US which was applied in different ways and IC were effective therapies for latent trigger points.