The effect of integrated neuromuscular inhibition technique on range of motion and pain in myofascial pain syndrome

Abstract

Background: Myofascial pain syndrome is a musculoskeletal condition characterized by the development of hypersensitive trigger points within taut bands of skeletal muscle that produce pain upon compression. Prolonged smartphone use may contribute to the development of myofascial pain syndrome. Persistent muscle contraction can lead to pain and restricted range of motion, thereby interfering with daily activities. Objective: The aim of this study is to examine changes in range of motion and pain intensity before and after the application of the Integrated Neuromuscular Inhibition Technique in smartphone users with myofascial pain syndrome in Denpasar City. Methods: This experimental study employed a one-group pretest–posttest design. A total of 31 participants received the Integrated Neuromuscular Inhibition Technique intervention. Range of motion was assessed using a goniometer, while pain intensity was measured using the Visual Analogue Scale. Both outcomes were evaluated before and after the intervention. Statistical analysis was performed using the paired-samples t-test and Wilcoxon signed-rank test. Results: The paired-samples t-test demonstrated a significant improvement in range of motion (p < 0.001). A significant reduction in pain intensity was also observed (p < 0.001). Conclusion: The study results indicate an increase in range of motion and a reduction in pain following the application of the Integrated Neuromuscular Inhibition Technique in smartphone users in Denpasar City suffering from myofascial pain syndrome. Regular application of the Integrated Neuromuscular Inhibition Technique three times per week may be considered a non-invasive physiotherapy intervention to help improve range of motion and reduce pain in individuals with myofascial pain syndrome.