The use of electricity for therapeutical purposes is not a modern age achievement. There are reports of its use since the ancient times. Nevertheless, scientific studies exist since the end of the 19th century or the beginning of the 20th century.

Electrotherapy is now one of the strongest tools in daily physiotherapy. The use of electricity through the skin brings:

• Analgesia
• Enhancement and
• Stimulation

Of the muscle tone, muscle relaxation, in muscle twitches, nervous stimulation and stimulation of blood circulation.