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Impaired potentiation of H-reflexes in patients with upper motoneurone lesions
  1. R. E. P. Sica1,
  2. A. J. McComas2,
  3. A. R. M. Upton2
  1. Regional Neurological Centre, Newcastle General Hospital, Newcastle upon Tyne, London
  2. The National Hospital for Nervous Diseases, Maida Vale, London

    Abstract

    The potentiation of H-reflexes during effort has been studied in 16 patients with mild hemiparesis. Impaired potentiation was present in all but one patient, and was still evident in some who had recovered fully from weakness. A tentative explanation has been proposed for these findings; it is suggested that there is loss of a background facilitatory pathway to motoneurones.

    https://doi.org/10.1136/jnnp.34.6.712

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      Footnotes

      • ↵1 Present address: Hospital Ramos Mejia, Buenos Aires, Argentina.

      • ↵2 Present address: Neurology Section, McMaster University Medical Centre, Hamilton, Ontario.