Electromyography (EMG) measures the electrical discharges made by the muscles. Nerve conduction studies, offered by Anthony Margherita, MD (measuring nerve conduction velocity) determine how well individual nerves can transmit electrical signals. Measuring the electrical activity in muscles and nerves can help detect the presence, location, and extent of diseases or conditions that can damage muscle tissue (such as muscular dystrophy) or nerves (such as carpal tunnel syndrome). In the case of nerve injury or compression, the site of nerve damage can often be localized and characterized. EMG and nerve conduction studies are often done together to provide more complete information regarding proximal or distal nerve function.