Effect of pulsed high frequency energy on cutaneous blood flow

概要

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The purpose of this study was to examine the influence of thermal effect from high frequency energy of three kinds on cutaneous tissue blood flow. Healthy volunteer students (n=19) received continuous and two kinds of pulsed high frequency energy on their thighs. Using a laser Doppler flowmetry, blood flow volume was measured for statistical analysis. No correlation between thickness of subcutaneous fat and rate of change of blood flow with different waveforms was found. Radiation of continuous wave increased blood flow significantly 8 minutes after the start of application. SPW and LPW also increased significantly from the end of application, and this results lasted until 15 minutes. Decrease rate of blood flow after the application with both kind of PW were less than CW. The results indicate that continuous wave increased blood flow faster and greater than pulsed one. However, increased blood flow by pulsed wave lasted longer time than which was obtained by the continuous one. Further research into combinations of pulse width and pulse repetition rates to determine whether specific conditions respond to particular setting is recommended.
四條畷学園大学の論文