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Single fibre electromyography in central core disease
  1. A. Cruz Martínez,
  2. M. T. Ferrer,
  3. J. M. López-Terradas,
  4. I. Pascual-Castroviejo,
  5. P. Mingo
  1. Servicio Central de Neurofisiología Clínica, Sección de EMG, Ciudad Sanitaria La Paz, Madrid, Spain


    Single fibre electromyography in the extensor digitorum communis muscle was studied in five patients with central core disease. The average number of muscle fibre action potentials belonging to the same motor unit was higher in patients than in healthy subjects of the same age. The increase in motor unit fibre density is consistent with increased terminal innervation ratio described in other papers about central core disease.

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