H reflex amplitude. Effect of leg muscle activity.

Abstract:

:The H reflex is a monosynaptic reflex whose latency can be used to evaluate pathology of the S1 nerve root and axon. Little has been written about the use of the H reflex amplitude in evaluating S1 nerve root and axon. Little has been written about the use of the H reflex amplitude in evaluating S1 nerve physiology. Although amplitude measurement of evoked potentials is useful in the evaluation of other sensory and compound muscle action potentials, this single case study shows it to be an unreliable parameter with which to evaluate the integrity of S1 nerve fibers, because muscle activity in antagonist and agonist affects the amplitude and in some instances abolishes it.

journal_name

Am J Phys Med Rehabil

authors

McHugh DJ,Reeser JC,Johnson EW

doi

10.1097/00002060-199705000-00003

subject

Has Abstract

pub_date

1997-05-01 00:00:00

pages

185-7

issue

3

eissn

0894-9115

issn

1537-7385

journal_volume

76

pub_type

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