Electrotonograph

An electrotonograph (also known as a tonograph) is an instrument used to record and analyze the bioelectrical activity of skeletal muscles.

The operating principle of the electrotonograph is based on recording electrical potentials that arise during muscle contraction. To do this, electrodes connected to an amplifier and a recording device are applied to the surface of the skin in the projection of the muscle being studied. When the muscle contracts, weak electrical signals are generated under the electrodes, which are amplified and recorded as an electromyogram.

Electrotonography is used in medical practice to diagnose neuromuscular conduction disorders and assess the condition of muscles in various diseases and injuries.

An electrotonograph is a medical device designed to record and analyze the bioelectrical activity of muscles. The name of the device comes from a combination of the words “electro” and “tonograph”, which reflects its work - electrical recording of muscle tone (tension).

The principle of operation of the electrotonograph is based on recording and enhancing the biopotentials that arise in the muscles during their contraction. To do this, electrodes are placed on the surface of the skin in the area of ​​the muscle being studied, which pick up electrical vibrations and transmit the signal to an amplifier. The resulting electromyogram (recording of the bioelectrical activity of the muscle) is displayed on the device screen and subjected to computer processing.

Electrotonography is widely used in medical practice for diagnosing neuromuscular conduction disorders, assessing the state of the peripheral nervous system, and identifying muscle tissue pathologies. This method allows you to obtain an accurate quantitative description of the processes occurring in the muscles, which is important for making a diagnosis and monitoring the effectiveness of treatment.