Effect of different intensity pulsed ultrasound on the restoration of rat skeletal muscle contusion.

Muscle damage is a common form of injury. The incidence of muscle damage accounts for up to half of the sports injuries. The aim of this study was to investigate the effect of pulsed ultrasound on the healing process in an animal contusion injury model. SD rats (62) were randomly divided into control group (CG, 14 rats) and treatment group (48). According to the intensities of Ultrasound therapy, the treatment group was divided into 4 subgroups of 12 rats, each: A (0.25 W/cm(2), US(1)), B (0.5 W/cm(2), US(2)), C (0.75 W/cm(2), US(3)) and D (0.25 W/cm(2)). The effectiveness of ultrasound treatment on muscle injuries was evaluated, and the optimal intensity of ultrasound in treating muscle injuries was explored. The results obtained provide experimental and theoretical evidence for the clinical effectiveness of Ultrasound therapy in treating muscle injuries.