![]() ![]() What is an EMG used for?Īn EMG is one of the go-to diagnostic tools for patients who have signs and symptoms of a nerve or muscle disorder. As it’s contracted, the electrical activity increases, with forceful contractions producing the greatest amount of electrical activity. Normally, muscle doesn’t produce electrical signals when it’s at rest. An EMG test uses tiny electrodes to transmit these signals to a machine, which translates them into graphs, sounds, or numerical values that a neurologist can read and interpret.ĮMG testing is done on muscles when they’re at rest, slightly contracted, and forcefully contracted. ![]() Motor neurons are the nerve cells that transmit the electrical signals that cause your muscles to contract. ![]()
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