persistent pain in the feet, legs, arms, or hands.
difficulty speaking, chewing, or swallowing.If the motor nerves are damaged or diseased, they can send abnormal electrical signals to the muscles.Ī doctor may order an EMG test if a person has symptoms of a muscle or nerve condition. Motor nerves control skeletal muscle activity, such as walking, speaking, and breathing.ĭamaged or diseased muscle fibers do not function or respond to nerve impulses appropriately. The electrical signals from the nerves trigger muscle contractions. Motor nerve cells, or neurons, transmit electrical signals from the central nervous system to the muscles. Share on Pinterest A person may have an EMG to help diagnose a muscular or neurological condition.
