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Journal of Neurology, Neurosurgery, and Psychiatry logoLink to Journal of Neurology, Neurosurgery, and Psychiatry
. 1983 Mar;46(3):280–282. doi: 10.1136/jnnp.46.3.280

A method for detcting functional weakness

Aj Mccomas 1, S Kereshi 1, J Quinlan 1
PMCID: PMC1027338  PMID: 6842236

Abstract

A simple electrophysiological method is described for detecting weaknes of psychiatric origin. The method involves the interpolation of a single indirect stimulus to a muscle during the course of a supposedly maximal voluntary contraction. Incomplete motor activation is revealed by the presence of a twitch superimposed on the recording of voluntary torque.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Belanger A. Y., McComas A. J. Extent of motor unit activation during effort. J Appl Physiol Respir Environ Exerc Physiol. 1981 Nov;51(5):1131–1135. doi: 10.1152/jappl.1981.51.5.1131. [DOI] [PubMed] [Google Scholar]
  2. MERTON P. A. Voluntary strength and fatigue. J Physiol. 1954 Mar 29;123(3):553–564. doi: 10.1113/jphysiol.1954.sp005070. [DOI] [PMC free article] [PubMed] [Google Scholar]

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