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Research Article| Volume 47, ISSUE 1, P35-48, July 1980

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Double discharges of distal origin

Influence on the firing rhythm
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      Abstract

      Double discharges, or doublets, following the direct M response after peripheral nerve stimulation had a distal origin on the axon and were accompanied by a back-response. This antidromic wave was demonstrated by collision technique or by its occasional recurrent F wave.
      Double discharges (DD) with a long interval between the two components had their origin in one subunit and were transmitted to another by motor axon reflex.
      Increase of the post-doublet interval (PDI) duration during EMG was best explained by invasion of the alpha cell by the back-response and the resetting of a new cycle. This invasion was sometimes followed by a recurrent F wave: a shorter PDI resulted.
      Normal PDI were probably due to blocking of the back-response at the myelinated-non-myelinated junction, without alpha cell invasion: weak or absent Renshaw inhibitory effect on the alpha cell concerned seemed to play a role.
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      References

        • Adams M.E.
        • Miller T.A.
        Site of action of pyrethroids — Repetitive “backfiring” in flight motor units of house fly.
        Pestic. Biochem. Physiol. 1979; 11: 218-231
        • Barakan T.H.
        • Downman C.B.B.
        • Eccles J.C.
        Electric potentials generated by antidromic volleys in quadriceps and hamstring motoneurones.
        J. Neurophysiol. 1949; 12: 393-424
        • Bergmans J.
        The physiology of Single Human Nerve Fibres.
        in: Vander, Louvain1970
        • Bergmans J.
        Physiological observations on single human nerve fibers.
        in: New Developments in Electromyography and Clinical Neurophysiology. Vol. 2. Karger, Basel1973: 89-127
        • Brock L.G.
        • Coombs J.S.
        • Eccles J.C.
        Intracellular recording from antidromically activated motoneurones.
        J. Physiol. (Lond.). 1953; 122: 429-461
        • Calvin W.H.
        • Schwartz P.C.
        Steps in production of motoneuron spikes during rhythmic firing.
        J. Neurophysiol. 1972; 35: 297-310
        • Coombs J.S.
        • Eccles J.C.
        • Fatt P.
        The electrical properties of the motoneurone membrane.
        J. Physiol. (Lond.). 1955; 130: 291-325
        • Denny-Brown D.
        On the nature of postural reflexes.
        in: Proc. roy. Soc. B. Lond. (Biol.). 104. 1929: 252-301
        • Denny-Brown D.
        Interpretation of the electromyogram.
        Arch. Neurol. Psychiat. 1949; 61: 99-128
        • Ebeling P.
        • Gilliatt R.W.
        • Thomas P.K.
        A clinical and electrical study of ulnar nerve lesions in the hand.
        J. Neurol. Neurosurg. Psychiat. 1960; 23: 1-9
        • Eccles J.C.
        The Neurophysiological Basis of Mind — The Principles of Neurophysiology.
        in: Clarendon Press, Oxford1953
        • Eccles J.C.
        The central action of antidromic impulses in motor nerve fibres.
        Pflügers Arch. 1955; 260: 385-415
        • Eccles J.C.
        • Hoff H.E.
        Rhythmic responses of motoneurones.
        J. Physiol. (Lond.). 1931; 71: 21P-22P
        • Eccles J.C.
        • Fatt P.
        • Koketsu K.
        Cholinergic and inhibitory synapses in a pathway from motor-axon collaterals to motoneurones.
        J. Physiol. (Lond.). 1954; 126: 524-562
        • Egloff-Baer S.
        • Roth G.
        Epthaptic recurrent response in man.
        Europ. Neurol. 1979; 18: 256-260
        • Erlanger J.
        • Blair E.A.
        Observations on repetitive responses in axons.
        J. Physiol. (Lond.). 1935; 114: 328-361
        • Esslen E.
        Electromyographic findings on two types of misdirection of regenerating axons.
        Electroenceph. clin. Neurophysiol. 1960; 12: 738-741
        • Halonen J.-P.
        • Lang A.H.
        • Partanen V.S.J.
        Change in motor unit firing rate after double discharge — An electromyogram study in man.
        Exp. Neurol. 1977; 55: 538-545
        • Hoff H.E.
        • Grant R.S.
        The supernormal period in the recovery cycle of motoneurons.
        J. Neurophysiol. 1944; 7: 305-322
        • Lloyd D.P.C.
        The interaction of antidromic and orthodromic volleys in a segmental spinal motor nucleus.
        J. Neurophysiol. 1943; 6: 143-151
        • Masland R.L.
        • Wigton R.S.
        Nerve activity accompanying fasciculation produced by prostigmin.
        J. Neurophysiol. 1940; 3: 269-275
        • Noebels J.L.
        • Prince D.A.
        Presynaptic origin of penicillin after discharges at mammalian nerve terminals.
        Brain Res. 1977; 138: 59-74
        • Partanen V.S.J.
        Double discharges in neuromuscular diseases.
        J. neurol. Sci. 1978; 36: 377-382
        • Partanen V.S.J.
        Time-locked Phenomena of Human Motor Unit Potentials.
        in: University of Kupio, Kupio1979
        • Partanen V.S.J.
        • Lang A.H.
        An analysis of double discharges in the human electromyogram.
        J. neurol. Sci. 1978; 36: 363-375
        • Renshaw B.
        Influence of discharge of motoneurons upon excitation of neighboring motoneurons.
        J. Neurophysiol. 1941; 4: 167-183
        • Richardson A.T.
        The analysis of muscle action potentials in the differential diagnosis of neuromuscular diseases.
        Arch. phys. Med. 1951; 32: 199-206
        • Richardson A.T.
        Clinical electrodiagnosis.
        in: Proc. roy. Soc. Med.55. 1962: 897-904
        • Riker Jr., W.F.
        • Roberts J.
        • Standaert F.G.
        • Fujimori H.
        The motor nerve terminal as the primary focus for drug-induced facilitation of neuromuscular transmission.
        J. Pharmacol. 1957; 121: 286-312
        • Riker Jr., W.F.
        • Werner G.
        • Roberts J.
        • Kuperman A.
        Pharmacologic evidence for the existence of a presynaptic event in neuromuscular transmission.
        J. Pharmacol. exp. Ther. 1959; 125: 150-158
        • Riker Jr., W.F.
        • Werner G.
        • Roberts J.
        • Kuperman A.
        The presynaptic element in neuromuscular transmission.
        Ann. N.Y. Acad. Sci. 1959; 81: 328-344
        • Roth G.
        Décharge double.
        Schweiz. Arch. Neurol. Neurochir. Psychiat. 1971; 108: 261-272
        • Roth G.
        Fasciculations d'origine périphérique.
        Electromyography. 1971; 11: 413-428
        • Roth G.
        Décharge couplée et réflexe d'axone moteur.
        Electromyography. 1971; 11: 459-463
        • Roth G.
        Décharge double indirecte.
        Electromyogr. clin. Neurophysiol. 1974; 14: 235-241
        • Roth G.
        Intranervous regeneration of lower motor neuron — Study of 1153 motor axon reflexes.
        Electromyogr. clin. Neurophysiol. 1978; 18: 225-351
        • Roth G.
        Intranervous regeneration — The study of motor axon reflexes.
        J. neurol. Sci. 1979; 41: 139-148
        • Roth G.
        • Egloff-Baer S.
        Ephaptic response in man.
        Europ. Neurol. 1979; 18: 261-266
        • Schiller H.H.
        • Stålberg E.
        F-Responses studied with single fibre EMG in normal subjects and spastic patients.
        J. Neurol. Neurosurg. Psychiat. 1978; 41: 45-53
        • Simpson J.A.
        Electrical signs in the diagnosis of carpal tunnel and related syndromes.
        J. Neurol. Neurosurg. Psychiat. 1956; 19: 275-280
        • Simpson J.A.
        Terminology of electromyography.
        Electroenceph. clin. Neurophysiol. 1969; 26: 224-226
        • Stålberg E.
        • Trontelj J.V.
        Single Fibre Electromyography.
        in: The Mirvalle Press, Old Woking, Surrey, Great Britain1979
        • Stålberg E.
        • Schwartz M.S.
        • Trontelj J.V.
        Single fibre electromyography in various processes affecting the anterior horn cell.
        J. neurol. Sci. 1975; 24: 403-415
        • Standaert F.G.
        Post-tetanic repetitive activity in the cat soleus nerve — Its origin, course, and mechanism of generation.
        J. gen. Physiol. 1963; 47: 53-70
        • Takahashi K.
        The “coupling discharge” in neurogenic muscular atrophy.
        Arch. Neurol. (Chic.). 1966; 14: 617-623
        • Taraschi G.
        • Lanzi G.
        Décharges multiples d'une unité motrice durant l'activité volontaire dans un cas de sclérose latérale amyotrophique.
        Electroenceph. clin. Neurophysiol. 1962; : 146
        • Trontelj J.V.
        • Trontelj M.
        F-Responses of human facial muscles — A single motoneurone study.
        J. neurol. Sci. 1973; 20: 211-222
        • Valle M.
        Décharges multiples dans la poliomyélite par mécanismes fonctionnels non-reconductibles à cryptotétanie.
        Electroenceph. clin. Neurophysiol. 1962; : 144-146
        • Werner G.
        Neuromuscular facilitation and antidromic discharges in motor nerves — Their relation to activity in motor nerve terminals.
        J. Neurophysiol. 1960; 23: 171-187
        • Werner G.
        Generation of antidromic activity in motor nerves.
        J. Neurophysiol. 1960; 23: 454-461
        • Wiersma C.A.G.
        Muscles consisting of a single motor unit after poliomyelitis.
        in: Proc. Soc. exp. Biol. (N.Y.). 61. 1964: 85-89