Abstract
THE monosynaptic reflex response evoked in the cat by a maximal volley in the group Ia afferent fibres from a synergic group of muscles has been measured as a fraction of total motoneurone pool of that muscle by Jefferson and Benson1 and found to range between 4.3 and 26.5 per cent. Apparently there has been no measurement of the activated fraction of the motoneurone pool with the analogous H-reflexes that are evoked in the gastrocnemius-soleus muscle of man by stimulation of the group Ia fibres in the popliteal nerve2–4.
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References
Jefferson, A., and Benson, A., J. Neurophysiol., 16, 381 (1953).
Hoffmann, P., Untersuchungen über die Eigenreflexe (Sehnenreflexe) menschilichen Muskeln (Springer, Berlin, 1922).
Magladery, J. W., and McDougal, jun., D. B., Bull. Johns Hopkins Hospital, 86, 265 (1950).
Paillard, J., Reflexes et Regulations d'origine proprioceptive chez l'Homme (Paris, Anette, 1955).
Hoffmann, P., Z. Biol., 68, 351 (1918).
Magladery, J. W., Pflüger's Archiv., Bd., 261, 302 (1955).
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TÁBOŘIKOVÁ, H. Fraction of the Motoneurone Pool activated in the Monosynaptic H-Reflexes in Man. Nature 209, 206–207 (1966). https://doi.org/10.1038/209206a0
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DOI: https://doi.org/10.1038/209206a0
