The needle EMG test is essential because it allows us to evaluate the muscles both during rest and during contraction. Again, electrical signals will be delivered to the body to evaluate whether it is properly transmitting these signals. For this component, small needles are inserted directly into the muscle tissue. The second part of the EMG test is known as a needle EMG. This portion of the EMG is generally comfortable, although you will feel spasms in the muscles as contractions are triggered by the electrical signals. This evaluates the body’s ability to send signals to the muscles. These sensors will send electrical signals that cause the underlying muscles to contract. For this component, sensors will be placed on the skin in the areas where you are experiencing symptoms. The first part of the procedure is performed on the body’s surface. These types of symptoms include:ĭuring an EMG test, you’ll lie down on an examination table. When is an EMG Necessary?Īn EMG may be necessary if you are experiencing symptoms that are indicative of nerve or muscular disorders. Primarily, EMGs are used to assess neurological, muscular and neuromuscular disorders. Depending on the results from an EMG, this process can help diagnose or rule out certain conditions. EMGs can detect these signals and interpret whether the nerves are communicating with the muscles properly. The nerves transmit electrical signals to cause muscle contractions.

What is an EMG?Īn EMG, or electromyography, is a diagnostic tool used to diagnose conditions that affect the nerves and/or muscles. We welcome patients from Orange County, Los Angeles County, Inland Empire and the surrounding areas of California. If you are seeking electromyography services to assist in the diagnosis of a complex or common neurological disease, you can trust Coast Spine and Sports Medicine. EMGs are an essential tool in diagnosing neurological diseases.

How to use emg test for lower back pain