Effects of transcutaneous radiofrequency diathermy versus ultrasound on latent myofascial trigger points in the upper trapezius: A randomized crossover trial.

This article focuses on evaluating the clinical efficacy of Digital Capacitive Diathermy (DCD®), a form of transcutaneous radiofrequency diathermy, compared to therapeutic ultrasound (US) in treating latent myofascial trigger points (MTrPs) in the upper trapezius muscle. In a randomized, assessor-masked crossover trial with 19 participants, no significant differences were found between DCD® and US regarding muscle stiffness, pain pressure threshold, cervical range of motion, or neck disability immediately after treatment. However, US produced a significant short-term reduction in pain, while DCD® showed a significant improvement in neck disability index scores one week post-intervention, suggesting a longer-lasting functional benefit. The study concludes that both modalities may be effective for latent MTrPs, but further research with larger samples, multiple sessions, and longer follow-up is needed to clarify optimal treatment protocols.