Nerve and muscle disorders cause the muscles to react in abnormal ways. Nerves control the muscles in the body by electrical signals (impulses), and these impulses cause the muscles to react in specific ways. An Electromyogram (EMG)Įlectromyogram (EMG) measures the electrical activity of muscles at rest and during contraction. This impulse produces a visual signal on a computer monitor and when analyzed it can provide information about the condition of the nerve. The response is measured by a second set of electrodes applied to the surface of the skin. Mild electrical stimulation is administered to the skin directly overlaying the nerve. Nerve Conduction Studies are used to measure the health of your nerves. NCS stands for Nerve Conduction Studies and EMG stands for Electromyography.
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