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Case Reports
. 1983 Mar;46(3):280-2.
doi: 10.1136/jnnp.46.3.280.

A method for detecting functional weakness

A J McComas, S Kereshi, J Quinlan
Case Reports

A method for detecting functional weakness

A J McComas et al. J Neurol Neurosurg Psychiatry. 1983 Mar.

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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References

    1. J Physiol. 1954 Mar 29;123(3):553-64 - PubMed
    1. J Appl Physiol Respir Environ Exerc Physiol. 1981 Nov;51(5):1131-5 - PubMed

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