The Influence of Load on the Short Latency Hit Reflex Evoked by a Mechanical Stimulus in Man

  • J. S. Ekiel
  • M. K. Lebiedowska
  • M. J. Zieniewicz

Abstract

The intensity of a reflex reaction to a mechanical stimulus, which involves mechanoreceptors, may depend on the type of stimulus: its point of application, its type and its parameters, namely its rise time, duration and its shape. A short latency reflex reaction (Matthews, 1986) depends on the excitability conditions in motoneuron pools of activated muscles and the mechanical stimulus parameters. Tatton (1985) concluded that the amplitude of the reaction is proportional to the background activity and to the velocity of the applied stimulus.

Keywords

External Load Mechanical Stimulus Short Latency Extensor Muscle Biceps Brachii 
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References

  1. Matthews, P.B.C., 1986, Observations on the automatic compensation of reflex gain on varying the pre-existing level of motor discharge in man, J. Physiol., 374, 73–90.PubMedGoogle Scholar
  2. Tatton, W.G., Bedingham, W., Verrier, M.C., Bruce, I.C. and Blair, R.D.G., 1985, Abnormalities of mechanoreceptor-evoked electromyographic activity in central motor disorders, in: “Electromyography and Evoked Potentials”, A. Struppler and A. Weind, ed., Springer Verlag, Heidelberg, p. 9–18.CrossRefGoogle Scholar
  3. Katbab, A., and Hemami, H., 1985, Role of gain programming in the voluntary movement of the human forearm. Med. and Biol. Eng, and Comput., 23: 230–236.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • J. S. Ekiel
    • 1
  • M. K. Lebiedowska
    • 2
  • M. J. Zieniewicz
    • 1
  1. 1.Department of RehabilitationChild HospitalWarsawPoland
  2. 2.Institute of BiocyberneticsWarsawPoland

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