Because both tests are often performed at the same office visit and by the same personnel, the risks and procedures generally apply to both tests.
Electrical Activity of Muscles
In some medical conditions, the electrical activity of the muscles or nerves is not normal. Finding and describing these electrical properties in the muscle or nerve may help your doctor diagnose your condition.
EMG may aid the diagnosis of nerve compression or injury (such as carpal tunnel syndrome), nerve root injury (such as sciatica), and with other problems of the muscles or nerves. Less common medical conditions include amyotrophic lateral sclerosis, myasthenia gravis, and muscular dystrophy.