Now in its Fourth Edition, this text gives physiatry and neurology residents a comprehensive, practical introduction to electromyography. Section I reviews the anatomy and physiology of nerve problems in relation to the planning and performance of electrodiagnostic procedures. Section II provides technical information on electrophysiology, instrumentation, and specific techniques, with digital photographs showing important surface anatomy. Section III guides physicians through various clinical EMG problems, beginning with the patient's symptoms and proceeding through electrodiagnostic evaluation and diagnosis. This edition includes over 500 new illustrations. A bound-in CD-ROM contains digital videoclips of EMG recordings and test questions that can be submitted for CME credit.