A tool, used prior to the adjustment, which produces a deep heat and relaxes the muscles.

This modality works to decrease muscle tightness and improve circulation. The mechanism works in the following process: the ultrasound head, in a continuous setting, creates sound waves, which penetrate the body, slowing as they pass through various layers of fat, muscle, and stopping at bone. Heat is produced as the sound waves slow and stop, promoting increased blood circulation and causing muscle relaxation in the treated area.