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The Effect of Age and Neurological Disease on the Ankle Jerk
OTTO APPENZELLER, MB, BS, MRACP, PhD (LOND);
JOHN J. IMARISIO, MD;
JAMES J. GILBERT, MD
Arch Neurol. 1966;15(2):147-150.
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| Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings. |
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THE ANKLE JERK is useful for the diagnosis of thyroid gland dysfunction. Lengthening of the reflex time in myxedema was thought to be independent of nervous system influences.1 Previous studies reported the "reflex time" measured from the onset of the stimulus to half relaxation. This measurement was the sum of several factors: latency, speed of contraction, and half relaxation time of the muscle, each one of which could have been independently affected by age of the subjects or disorders in the central or peripheral nervous systems.
It was thought worthwhile, therefore, to determine whether these phases of the reflex changed with age or were influenced by neurological disease.
Materials and Methods
There were 102 subjects studied, including 48 controls. The controls were divided into two groups: controls ranging in age from 50 to 95 years in one group and from 9 months to 21 years in the other.
. . . [Full Text PDF of this Article]
Author Affiliations
CINCINNATI
From the Neurology and Radioisotope Services, Veterans Administration Hospital, and departments of neurology and internal medicine, College of Medicine, University of Cincinnati, Ohio.
Footnotes
Submitted for publication March 3, 1966; accepted April 11.
Reprint requests to Veterans Administration Hospital, 3200 Vine St, Cincinnati 45220 (Dr. Appenzeller).
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