Interferential currents are medium-frequency currents. Their application results in muscle contraction, analgesic effect, and improvement of nutritional processes in tissues.
Diadynamic currents are also called Bernard's currents based on a sine wave with a frequency of 50Hz. Due to the ease of generation of this current shape, they have been known almost from the beginning of electrotherapy, and their influence on the human body has been thoroughly studied.
Kotz' currents are used for muscle training. They are based on the average frequency current of 2.5 kHz with modulated amplitude
The essence of ionophoresis is the introduction of chemical compounds with therapeutic effects into the tissue by the use of a direct current