Want more iVillage? Sign up for our
Newsletters
Electromyogram
An electromyogram (EMG) is a test that measures the electrical discharges made by the muscles. It can determine whether muscle weakness or paralysis is due to a nerve problem or to a problem with the muscle itself.
During an electromyogram, a thin needle is placed in a muscle to measure its electrical activity at rest and during use. The needle is attached to a machine with a viewing screen (like a TV) that displays electrical activity in the muscles as waves on the screen.
| By: | Healthwise Staff | Last Revised: July 26, 2010 |
| Medical Review: | Anne C. Poinier, MD - Internal Medicine Colin Chalk, MD, CM, FRCPC - Neurology | |
© 1995-2011 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information.
