Interventions
The treatment was performed with 2 previously calibrated Diatermed II devices* with a carrying frequency of 27.12 MHz, a peak power of 250 W,and a pulse duration of 400 microseconds.These parameters are predetermined in the device according to the manufacturer. We used the maximum power provided by the machine in a pulsed form with a pulse frequency of 145 Hz, resulting in a mean power of 14.5 W. These settings were based on the fact that applications with a mean power below 20 W minimize the thermal effects.11,18 To calculate the mean power, the following formula was used: มีสมการ