EMG
Electromyography (EMG) is a diagnostic technique for evaluating and recording the electrical activity produced by skeletal muscles. It assesses the health of muscles and the nerves that control them (motor neurons). EMG data are obtained with electrodes placed on the skin over a muscle (surface EMG) or inserted into the muscle with a needle (intramuscular EMG).
Surface EMG captures summed electrical activity from many motor units and is commonly used to study timing
During a typical intramuscular recording, a fine needle electrode records motor unit action potentials in response
Applications include the diagnosis of neuromuscular disorders such as radiculopathy, peripheral nerve injury, myopathy, and motor
Limitations include susceptibility to noise and cross-talk, discomfort with needle electrodes, and the fact that EMG