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Ultrahigh frequency therapy (UHF therapy)
Medical expert of the article
Last reviewed: 07.07.2025
Ultra-high-frequency therapy (UHF therapy) is a method of local exposure to an alternating electric field of appropriate parameters, carried out using two capacitor electrodes located above certain areas of the patient's body at a distance of 0.5-2 or 3-4 cm.
Ultra-high frequency therapy (UHF therapy) uses the frequency of the alternating electric field used by physiotherapy equipment, 27.12+0.16 MHz or 40.68±0.02 MHz; the input power of the devices is from 5 to 350 W.
The peculiarities of the factor's action consist of the manifestation of thermal and non-thermal effects.
The formation of endogenous heat in the body (thermal effect) is associated with the effect of alternating electric field of maximum and average power using UHF therapy devices. This effect is due to the transformation of electric field energy into thermal energy due to high-frequency oscillatory displacements of protein molecules and subcellular structures and the resulting significant friction force, as well as due to the mechanical movement of ions in a viscous medium.
The non-thermal effect occurs when exposed to an alternating electric field of low and ultra-low power. It is caused by electrodynamic changes in tissues and organs (electric polarization, bioelectret effect, occurrence of conduction currents), their subsequent information transformations and all subsequent reactions and processes.
The main clinical effects of ultra-high-frequency therapy (UHF therapy) are: anti-inflammatory, secretory, vasodilatory, muscle relaxant, trophic.
Equipment: "Ekran-1", "Ekran-2", "Impulse-2", "Impulse-3", "UHF-66-2", "UHF-30-2", "UHF-59-OЬ, "Ustye", "UHF-80-3", "Undaterm", "UHF-5-1", "Miniterm".
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