An Evaluation of Some Electrodiagnostic Methods: III. Electromyography

Journal/Book: Reprint from ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION Vol. 38 January 1957.. 1957;

Abstract: Robert W. Boyle M.D. Ph.D. and Paul A. Dudenhoefer M.D. Milwaukee Summary A brief resumé of the historical aspects of electromyography and early clinical research is given. The various types of apparatus used are briefly described. The physiologic basis for electromyography is discussed including nerve-muscle impulse propagation the motor unit the all or none theory and the production of electrical changes with activity. The appearance of patterns from normal voluntary muscle is discussed and comparison is made between these and the patterns formed in various neuromuscular disorders. The etiology and significance of fibrillations and fasciculations are discussed. ___MH

Zurück | Weiter