![]() ![]() ![]() ![]() Few symptoms may include numbness, tingling, muscle pain or cramping, unexplained weakness in the limbs or certain types of pain in limbs. Usually when a doctor sees symptoms and suspects muscle or nerve disorder - he will order an EMG. Why would someone need an EMG? / Why is electromyography performed? The most important part of an EMG system is its amplifiers and stimulators. The modular configuration of modern EMG systems makes it possible to upgrade or replace the computer, while keeping the other hardware units intact. Electromyography or EMG system measures this electrical activity in muscle in response to nerve’s stimulation of the muscle and convert these signals into graphs or numerical values, helping specialists or doctors interpret them to make a diagnosisĮMG systems produced nowadays are computer based which includes dedicated hardware units like a stimulator, amplifier, preamplifier, control panel, speaker, computer, printer, and several types of electrodes. The motor neurons send electrical signals through them that cause the muscles to contract and relax. The electromyography or EMG is an electrodiagnostic test that is performed to test and assess the health of skeletal muscles and motor neurons - the nerve cells that control the muscles. ![]()
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