Single Fiber Electromyography

C. Michel Harper

in Clinical Neurophysiology

Third edition

Published on behalf of © Mayo Foundation for Medical Education and Research

Published in print April 2009 | ISBN: 9780195385113
Published online April 2013 | e-ISBN: 9780199322770 | DOI:

Series: Contemporary Neurology Series

Single Fiber Electromyography

Show Summary Details


SFEMG is a highly selective technique that permits recording of individual components of the motor unit. The selectivity of SFEMG depends on the use of a low-frequency filter of 500 Hz and a small electrode size. Voluntary activation or electric stimulation is used to activate the muscle fiber in SFEMG. Voluntary activation allows measurement of fiber density, whereas jitter and blocking are recorded with both voluntary and stimulated SFEMG.

Chapter.  9745 words.  Illustrated.

Subjects: Neurology

Full text: subscription required

How to subscribe Recommend to my Librarian

Buy this work at Oxford University Press »

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.