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  • Electromyography (EMG)

    Electromyography (EMG) is a diagnostic test used to evaluate the health of muscles and the nerves that control them (motor neurons). These nerves transmit electrical signals when they are stimulated by muscle contractions such as bending a leg.

    During EMG, needle electrodes are inserted through the skin into muscles to pick up the electrical activity, which is then translated into graphs, sounds, or numerical values for a specialist to interpret.

    What is Electromyography (EMG) used for?

    Electromyography may help diagnose or rule out several conditions that affect nerves or muscles, including:

    • Muscular dystrophy
    • Myositis
    • Myasthenia gravis
    • Peripheral neuropathies
    • Carpal tunnel syndrome
    • Amyotrophic lateral sclerosis (ALS)
    • Herniated disc

    Am I a good candidate for Electromyography (EMG)?

    You may be a good candidate for electromyography if you are having symptoms that could indicate a nerve or muscle disorder, such as weakness, pain, or abnormal sensations. You may feel some discomfort when the needle electrodes are inserted, but complications resulting from an EMG are rare.

    Request an Appointment

    Call (602) 406-6262

    • Date of last review: January 12, 2020

    About Barrow Neurological Institute
    Since our doors opened as a regional specialty center in 1962, we have grown into one of the premier destinations in the world for neurology and neurosurgery. Our experienced, highly skilled, and comprehensive team of neurological specialists can provide you with a complete spectrum of care–from diagnosis through outpatient neurorehabilitation–under one roof. Barrow Neurological Institute: Discover. Educate. Heal.