Ultrasounds are sound waves with a frequency of 20 kHz – 1 GHz. This frequency is too high to be heard by the human ear. A human being is able to hear sounds in the frequency range 16 – 20,000 Hz. However, higher frequency sound waves are audible for certain types of animals, such as bats, dolphins or dogs. Ultrasound therapy uses mainly sound waves with a frequency of 1 MHz and 3 MHz.
The positive effects of using ultrasound in therapy are appreciated by specialists in physical therapy around the world.
Ultrasound acts on tissues mechanically ( i.e. through micromassage), thermally and physicochemically. Ultrasound therapy treatments are particularly valued for positive therapeutic effects in the form of analgesic and regenerative effects.
The biological effect of ultrasounds is the resultant of thermal, mechanical and physicochemical effects and includes:
Ultrasounds, due to their biological effects in tissues, are used to:
A low intensity ultrasounds therapy (LIPUS) is a special type of ultrasonic wave incorporated in the device. Generally, they are emitted in pulsed mode with average power density up to 0.1 W/cm2 (100mW/cm2), low frequency (most often 1.5 MHz), short duty cycles (20%), pulse repetition frequency around 1kHz. The low intensity ultrasounds do not cause thermal and destructive effects, they accelerate the healing of open wounds, as well as tendons, nerves and bones.
The ultrasounds in LIPUS mode are used to:
Indications for the use of ultrasound therapy are the following diseases and conditions:
Indications for LIPUS therapy
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