![]() This needle reads muscle activity and sends the data to the computer.A needle connected to a computer is inserted into a muscle.Needle EMGĪ needle EMG measures how well your muscles respond to the electrical signals. It consists of two tests: needle EMG and nerve conduction study. ![]() How it worksĮlectromyography is based on the principle that nerve cells transmit small electrical signals from the brain to the muscles telling them to contract. The results of these tests will help your doctor determine whether your condition is a muscular issue or a nerve issue. The NCS is used to detect nerve damage, which can lead to pain, tingling, or weakness in your muscles. This test is used to diagnose neuromuscular disorders (conditions that affect the muscles or their nervous systems).Īn EMG is frequently done together with a nerve conduction study (NCS). An electromyography (EMG) is a diagnostic procedure that records the electrical activity produced by the skeletal muscle to evaluate the function of nerves and muscles.
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