The measurement of nerve conduction is an expression of the pathophysiological state of the nerves and an essential tool for the study of various neuropathies. The clinical usefulness of nerve conduction studies(NCS) in the diagnosis of diffuse and focal neuropathies has been thoroughly validated. This article decribes the general guidelines for performing nerve conduction studies including H-reflex and F-wave. And the basic skills of NCS, the factors (physiological and nonphysioloigcal) affecting nerve conduction and clinical applications will be briefly discussed.
