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Electromyography is often used with pain mapping to discern the cause of a person’s pain. Electromyographies are capable of detecting nerve entrapments and peripheral neuropathies, in addition to other nerve-related issues. It is not uncommon for a person to have multiple generators of pain, some of which may be missed if only one diagnostic procedure is performed. For this reason, electromyographies are used to guarantee that all possible causes of pain have been investigated.
An electromyography is performed by inserting tiny fibers into the patient’s muscle. Each fiber is sensitive to electrical activity within the muscles. During the test, the patient will be asked to contract or relax the muscle. As the patient does this, electrical impulses pass through the area and are detected by the fibers. The information obtained by the fibers is then used to determine whether the muscle and its corresponding nerves are functioning normally.