Single motor-unit control by normal and cerebral-palsied males

Single motor-unit (SMU) control was compared for three ambulatory cerebral-palsied and three neurologically unimpaired subjects. Both groups were similar in their abilities to produce a discrete whole muscle contraction, to isolate and maintain firing of a single motor unit, and to turn a unit on at...

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Bibliographic Details
Published inDevelopmental medicine and child neurology Vol. 26; no. 3; p. 323
Main Authors Robertson, D W, Lee, W A, Jacobs, M
Format Journal Article
LanguageEnglish
Published England 01.06.1984
Subjects
Adolescent
Adult
Biofeedback, Psychology - physiology
Cerebral Palsy - physiopathology
Electromyography
Humans
Male
Membrane Potentials
Motor Neurons - physiology
Muscles - innervation
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Summary:Single motor-unit (SMU) control was compared for three ambulatory cerebral-palsied and three neurologically unimpaired subjects. Both groups were similar in their abilities to produce a discrete whole muscle contraction, to isolate and maintain firing of a single motor unit, and to turn a unit on at a visual signal. Unit inter-spike intervals were very similar for both groups. However, the cerebral-palsied subjects showed a consistent inability to inhibit single motor-unit (or whole muscle) activity if the isolated unit had been firing for some time; normal subjects did not show a similar inability.
ISSN:0012-1622
DOI:10.1111/j.1469-8749.1984.tb04448.x