Effect of transducer velocity on intramuscular temperature during a 1-MHz ultrasound treatment.

Study Design: A 3 x 2 repeated-measures design was used. The independent variables were transducer velocity (2-3 cm/s, 4-5 cm/s, and 7-8 cm/s) and time (pretreatment and posttreatment).

Objective: To determine if transducer velocity of a 1-MHz ultrasound treatment affects intramuscular tissue temperature.