Which parameter is used to heat a deep tendon?

Which parameter is used to heat a deep tendon?

• A. 1 MHz at 1.5 W/cm2 for 10 minutes
• B. 3 MHz at 1.5 W/cm2 for 4 minutes
• C. 1 MHz at 0.5 W/cm2 for 12 minutes
• D. 1.5 MHz at 1.0 W/cm2 for 6 minutes

Answer: (A)

For heating a deep tendon, you want energy to reach deeper tissues, which is best achieved with a lower ultrasound frequency, since lower frequencies penetrate deeper than higher ones. At the same time, you need a sufficient intensity and a long enough treatment duration to raise the tissue temperature in deeper structures. The combination of 1 MHz with 1.5 W/cm2 for about 10 minutes provides sufficient energy and depth of penetration to heat a deep tendon effectively, using a continuous heating approach that targets depth without overdoing surface tissues. The other options either use a higher frequency, which concentrates energy more superficially and won’t heat the deep tendon as effectively, or they combine lower intensity or shorter duration with a less optimal depth-to-energy ratio, making them less reliable for achieving the desired deep heating.

For heating a deep tendon, you want energy to reach deeper tissues, which is best achieved with a lower ultrasound frequency, since lower frequencies penetrate deeper than higher ones. At the same time, you need a sufficient intensity and a long enough treatment duration to raise the tissue temperature in deeper structures. The combination of 1 MHz with 1.5 W/cm2 for about 10 minutes provides sufficient energy and depth of penetration to heat a deep tendon effectively, using a continuous heating approach that targets depth without overdoing surface tissues.

The other options either use a higher frequency, which concentrates energy more superficially and won’t heat the deep tendon as effectively, or they combine lower intensity or shorter duration with a less optimal depth-to-energy ratio, making them less reliable for achieving the desired deep heating.