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However, therapeutic ultrasound is reported to have beneficial effects in sports injuries pain relief, edema control, and range of joint motion, possibly by increasing pain thresholds, collagen extensibility, reducing edema, and therefore inflammation, muscle spasms, and joint stiffness. [26]
This method of medical ultrasound therapy can be used for various types of pain relief and physical therapy. In physics, the term "ultrasound" [1] applies to all acoustic energy with a frequency above the audible range of human hearing. The audible range of sound is 20 hertz – 20 kilohertz. Ultrasound frequency is greater than 20 kilohertz.
Low-intensity pulsed ultrasound (LIPUS) is a technology that can be used for therapeutic purposes. It exploits low intensity and pulsed mechanical waves in order to induce regenerative and anti-inflammatory effects on biological tissues, such as bone, [ 1 ] cartilage, and tendon. [ 2 ]
Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.
ESWT is used in physical therapy for pain reduction, increase in metabolism at the cellular level, revascularisation, and recovering normal muscle tone following various disorders. [30] The use of ESWT was demonstrated in patients with frozen shoulders compared to therapeutic ultrasound with exercises. [31]
There has been evidence provided for ultrasound neuromodulation's potential in treating chronic pain and similar conditions. After 31 patients with chronic pain had 8 MHz unfocused transcranial ultrasound stimulation targeted to the posterior frontal cortex in a double-blind, sham-controlled study, they reported feeling in a better mood 10 to ...