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ROMUALDO JOSÉ do CARMO

Arch Neurol. 1960;3(2):136-140.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

Because of increasing interest in infantile neuromuscular disease, accurate electromyographic data on normal infants have become essential. Information is already available concerning the normal histological development of infant muscles,^1-3 and there has been some consideration of electrophysiological findings.⁴ A more methodical study of the motor unit in the normal newborn is presented here.

Methods

Observations were made on normal subjects 12 hours to 7 days of age. Records were made on 52 female and 34 male infants, the newborn infants being strapped to a circumcision board while motor unit action potentials were recorded during the reflex response to mechanical stimulation of the foot. Concentric and multiple electrodes were used. The concentric electrode had a platinum wire core with a diameter of 0.1 mm., the tip of which had an area of 0.04 sq. mm. and an inclination of 15 degrees. It was insulated from a surrounding stainless-steel cannula . . . [Full Text PDF of this Article]

Author Affiliations
St. Louis

Footnotes
Accepted for publication Jan. 7, 1960.

Division of Neurology and the Beaumont-May Institute of Neurology, Washington University School of Medicine.

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