Effectiveness of Ultrasound Combine TENS in Treatment of Upper Trapezius Myofascial Pain

"Use ultrasound treatment parameters as continuous mode, 1 MHz in frequency and 1 w/cm2 for intensity and circular stroking of sound head over affected upper trapezius muscle throughout treatment period. For simultaneous TENS parameters as pulse frequency 100-150 pps, pulse duration 50- 80 µs and adjust amplitude as produce tingling for 10 minutes. The skin electrode should be placed near the active trigger in area of trapezius muscle. And the control group received sham TENS by turn-off electrical current.~The therapeutic ultrasound machine in this study was Sonopuls 492 TM (Enraf-Nonius)."