Such symptoms may include:ĮMG is a low-risk procedure, and complications are rare. Your doctor may order electromyography if you have signs or symptoms that may indicate a nerve or muscle disorder. An EMG uses tiny devices called electrodes to translate these signals into graphs, sounds or numerical values that are then interpreted by a specialist.ĭuring a needle EMG, a needle electrode inserted directly into a muscle records the electrical activity in that muscle.Ī nerve conduction study, another part of an EMG, uses electrode stickers applied to the skin (surface electrodes) to measure the speed and strength of signals traveling between two or more points. Motor neurons transmit electrical signals that cause muscles to contract. You may need nerve conduction studies to find damage to the nerves that lead from the brain and spinal cord to the rest of the body (peripheral nervous system). EMG results can reveal nerve dysfunction, muscle dysfunction or problems with nerve-to-muscle signal transmission. The procedure involves the use of electrode patches that emit a mild.

It is usually performed along with electromyography in order to determine if a patient is suffering from muscular or nerve disease. Electromyography, also known as EMG, is a diagnostic procedure to assess the health of muscles and the nerve cells that control them (motor neurons). Nerve conduction studies are performed to: Assess disorders of the peripheral nervous system which includes the nerves that lead away from the brain and spinal. A nerve conduction study is a diagnostic test that is performed to assess the strength and speed of electrical signals that travel along nerves.

Nerve conduction test on back