Which treatment modality employs soundwaves to promote healing?

The treatment modality that employs soundwaves to promote healing is therapeutic ultrasound. This method utilizes high-frequency sound waves that penetrate deep into the tissues, increasing blood flow and promoting tissue repair. The vibrations generated by the ultrasound can facilitate healing by reducing pain, decreasing swelling, and improving soft tissue extensibility. Therapeutic ultrasound is commonly used in physical therapy settings for various musculoskeletal injuries and conditions, making it an effective tool in the rehabilitation process.

Other modalities listed do not utilize sound waves for healing. Cryotherapy focuses on the application of cold to reduce inflammation and pain, while electrotherapy uses electrical impulses to stimulate nerves and muscles. Hydrotherapy involves the use of water for therapeutic purposes; it does not involve sound waves.