1 Dirk is also the name of the Dragon's Lair protagonist, Dirk the Dashing. 2  Dirk the Dashing is a knight, similar to Dirk Strider's dancestor/ectobiological son Dave Strider.
Electromyography (EMG) is a general term meaning, the recording of the electrical activity of nerve and muscle. EMG is a diagnostic test used to assess the function of nerves and muscles. You may be sent for an EMG test if you are experiencing numbness, tingling, weakness, or pain. The test may take from 45 minutes to 1.5 hours depending on what your doctor has ordered.
An EMG is the summation of action potentials from the muscle fibers under the electrodes placed on the skin. The more muscles that fire, the greater the amount of action potentials recorded and the greater the EMG reading. EMG recording: The EMG is recorded by using a electrode placed on the muscle. The electrical activity measured by each muscle electrode and the ground electrode are sent to an amplifier. The amplifier eliminates random voltages caused by electrical noise by subtracting the signal from the ground electrode from the muscle electrode, producing the raw EMG.