Advertisement

Reflex Circuitry Originating from the Muscle Spindles to the Tibialis Anterior Muscle

  • Utku S. YavuzEmail author
  • Francesco Negro
  • Robin Diedrichs
  • Kemal S. Türker
  • Dario Farina
Conference paper
Part of the Biosystems & Biorobotics book series (BIOSYSROB, volume 15)

Abstract

In this study we investigated whether the reflex excitatory and inhibitory inputs to motor neuron pools are uniformly or differentially distributed. We found that the distribution of monosynaptic excitatory (H-reflex) and reciprocal inhibitory inputs to different size motor neurons fitted gamma distributions with different skew values. This result can be interpreted as due to a differential distribution of afferent inputs on motor neurons.

Keywords

Motor Neuron Motor Unit Maximum Voluntary Contraction Tibialis Anterior Muscle Spindle 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

This study was supported by European Research Council (ERC, DEMOVE, No. 267888).

References

  1. 1.
    E. Pierrot-Deseilligny, D. Mazevet, The monosynaptic reflex: a tool to investigate motor control in humans. Interest and limits. Clin. Neurophysiol. 30(2), 67–80 (2000)CrossRefGoogle Scholar
  2. 2.
    C.J. Heckman, C. Mottram, K. Quinlan, R. Theiss, J. Schuster, Motoneuron excitability: the importance of neuromodulatory inputs. Clin. Neurophysiol. 120(12), 2040–2054 (2009)CrossRefGoogle Scholar
  3. 3.
    R. Burke, Group Ia Synaptic input to fast and slow twitch motor units of cat triceps surae. J. Physiol. 196, 605–630 (1968)CrossRefGoogle Scholar
  4. 4.
    T.S. Miles, K.S. Türker, Does reflex inhibition of motor units follow the ‘size principle’? Exp. Brain Res. 62(2), 443–445 (1986)CrossRefGoogle Scholar
  5. 5.
    N. Buller, R. Garnett, J. Stephens, The reflex responses of single motor units in human hand muscles following muscle afferent stimulation. J. Physiol. 303, 337–349 (1980)CrossRefGoogle Scholar
  6. 6.
    U.Ş. Yavuz, F. Negro, O. Sebik, A. Holobar, C. Frömmel, K.S. Türker, D. Farina, Estimating reflex responses in large populations of motor units by decomposition of the high-density surface electromyogram. J. Physiol. 593(19), 4305–4318 (2015)CrossRefGoogle Scholar
  7. 7.
    R.M. Enoka, A.J. Fuglevand, Motor unit physiology: some unresolved issues. Muscle Nerve 24(1), 4–17 (2001)CrossRefGoogle Scholar
  8. 8.
    F. Negro, S. Muceli, A.M. Castronovo, A. Holobar, D. Farina, Multi-channel intramuscular and surface EMG decomposition by convolutive blind source separation. J. Neural Eng. 49(July), 1–45 (2014)Google Scholar
  9. 9.
    F. Awiszus, H. Feistner, S.S. Schäfer, On a method to detect long-latency excitations and inhibitions of single hand muscle motoneurons in man. Exp. Brain Res. 86(2), 440–446 (1991)CrossRefGoogle Scholar
  10. 10.
    K.S. Türker, H.B. Cheng, Motor-unit firing frequency can be used for the estimation of synaptic potentials in human motoneurones. J. Neurosci. Methods 53(2), 225–234 (1994)CrossRefGoogle Scholar
  11. 11.
    L. Birgé, Y. Rozenholc, How many bins should be put in a regular histogram. ESAIM: Probab. Stat. 10, 24–45 (2006)Google Scholar
  12. 12.
    F. Negro, D. Farina, Decorrelation of cortical inputs and motoneuron output. J. Neurophysiol. 106(5), 2688–2697 (2011)CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG 2017

Authors and Affiliations

  • Utku S. Yavuz
    • 1
    Email author
  • Francesco Negro
    • 1
  • Robin Diedrichs
    • 1
  • Kemal S. Türker
    • 2
  • Dario Farina
    • 1
  1. 1.Institute of Neurorehabilitation SystemsUniversity Medical Center GöttingenGöttingenGermany
  2. 2.Koç University School of MedicineIstanbulTurkey

Personalised recommendations