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An Electromyographic Study

Robert D. Teasdall, MD; John W. Magladery, MD

Arch Neurol. 1974;30(1):94-95.

Abstract
In seven patients with spastic hemiparesis and in three normal subjects, latencies of the brachioradialis reflex and forearm flexor responses to blows at the styloid process of the radius were identical. Moreover, these latencies were similar to those of independently obtained finger flexor reflexes. H reflexes, obtained only in hemiplegic arms, were of similar latency from brachioradialis and forearm flexor muscles following stimulation of the appropriate nerves. These findings indicate that the brachioradialis reflex and associated contraction of forearm flexor muscles result from independent myotatic reflexes and not from intraspinal spread.

Author Affiliations
Baltimore

From the Neurology Laboratory, Baltimore City Hospitals.

Footnotes
Accepted for publication Aug 9, 1973.

Reprint requests to Department of Neurology, the Johns Hopkins Hospital, 601 N Broadway, Baltimore 21205 (Dr. Magladery).

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