An example of thermotherapy is:

An example of thermotherapy is:

• A. Ultrasound
• B. Whirlpool
• C. Tens unit
• D. Laser

Answer: (A)

Thermotherapy aims to raise tissue temperature to improve blood flow, metabolic rate, tissue extensibility, and pain relief. Ultrasound achieves heating by converting acoustic energy into heat in the tissues, especially when used continuously. This thermal effect can reach deeper structures (with 1 MHz) and produce the classic heating benefits that define thermotherapy, making it a typical example of a heating modality. Whirlpool, while it can provide warming through warm water, is categorized more broadly as hydrotherapy with combined mechanical and cooling/heating effects, not solely a heating modality. The tens unit uses electrical stimulation rather than heat, and laser therapy uses light energy for healing and analgesia rather than temperature increase.

Thermotherapy aims to raise tissue temperature to improve blood flow, metabolic rate, tissue extensibility, and pain relief. Ultrasound achieves heating by converting acoustic energy into heat in the tissues, especially when used continuously. This thermal effect can reach deeper structures (with 1 MHz) and produce the classic heating benefits that define thermotherapy, making it a typical example of a heating modality.

Whirlpool, while it can provide warming through warm water, is categorized more broadly as hydrotherapy with combined mechanical and cooling/heating effects, not solely a heating modality. The tens unit uses electrical stimulation rather than heat, and laser therapy uses light energy for healing and analgesia rather than temperature increase.