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Experimental Brain Research

, Volume 46, Issue 3, pp 425–437 | Cite as

Interlimb coordination in cat locomotion investigated with perturbation

I. Behavioral and electromyographic study on symmetric limbs of decerebrate and awake walking cats
  • K. Matsukawa
  • H. Kamei
  • K. Minoda
  • M. Udo
Article

Summary

During locomotion of decerebrate and awake walking cats, perturbation (mechanical tap) was applied to the paw dorsum of the left forelimb (LF), and the responses of both forelimbs were recorded cinematographically and electromyographically (EMG). When the tap was applied during the LF stance phase, the duration of the ongoing LF stance was shortened by 10%; in the right forelimb (RF), the duration of the concomitant swing was shortened by 32%. A tap during the LF swing phase prolonged the duration of the ongoing LF swing phase and the concomitant RF stance phase by 55 and 15%, respectively. Analysis of RF joint angle excursions showed that the shortening of the RF swing phase was related mainly to acceleration of extension movement in the late swing phase; the prolongation of the RF stance phase was related to prolonged extension movement in the late stance phase. While EMG activities were relevant to these limb movements, a notable observation was that, by tapping the LF during the LF stance phase, EMG activity in the RF extensor started well before onset of the elbow extension movement to place down the limb; without the tap, the extensor activity started shortly after onset of the extension. Closely related to changes in phase durations of each forelimb, the period of bisupport phase where both forelimbs were in stance, was retained for more than 40% of that of unperturbed steps, even when the RF or LF made the first touchdown after the tap. The rostrocaudal level at RF touchdown after the tap was comparable to unperturbed steps. These findings on interlimb relation suggest that neural control ensures coordinated movements between symmetric limbs during locomotion.

Key words

Interlimb coordination EMG Locomotion Perturbation 

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References

  1. Duysens J (1977) Fluctuations in sensitivity to rhythm resetting effects during the cat's step cycle. Brain Res 133: 190–195PubMedCrossRefGoogle Scholar
  2. Duysens J, Loeb GE (1980) Modulation of ipsi- and contralateral reflex responses in unrestrained walking cats. J Neurophysiol 44: 1024–1037PubMedGoogle Scholar
  3. Duysens J, Stein RB (1978) Reflexes induced by nerve stimulation in walking cats with implanted cuff electrodes. Exp Brain Res 32: 213–224PubMedCrossRefGoogle Scholar
  4. Engberg I, Lundberg A (1969) An electromyographic analysis of muscular activity in the hindlimb of the cat during unrestrained locomotion. Acta Physiol Scand 74: 614–630CrossRefGoogle Scholar
  5. English AW (1978) An electromyographic analysis of forelimb muscles during overground stepping in the cat. J Exp Biol 76: 105–122PubMedGoogle Scholar
  6. Forssberg H (1979) Stumbling corrective reaction: A phase compensatory reaction during locomotion. J Neurophysiol 42: 936–953PubMedGoogle Scholar
  7. Forssberg H, Grillner S, Rossignol S (1975) Phase dependent reflex reversal during walking in chronic spinal cats. Brain Res 85: 103–107PubMedCrossRefGoogle Scholar
  8. Forssberg H, Grillner S, Rossignol S (1977) Phasic gain control of reflexes from the dorsum of the paw during spinal locomotion. Brain Res 132: 121–139PubMedCrossRefGoogle Scholar
  9. Gauthier L, Rossignol S (1981) Contralateral hindlimb responses to cutaneous stimulation during locomotion in high decerebrate cats. Brain Res 207: 303–320PubMedCrossRefGoogle Scholar
  10. Grillner S (1972) The role of muscle stiffness in meeting the changing postual and locomotor requirements for force development by ankle extensors. Acta Physiol Scand 86: 92–109PubMedCrossRefGoogle Scholar
  11. Halberstma J, Miller S, van der Meché FGA (1976) Basic programs for the phasing of flexion and extension movements of the limbs during locomotion. In: Herman RM, Grillner S, Stein PSG, Stuart DG (eds) Neural control of locomotion. Plenum Press, New York London, pp 489–517Google Scholar
  12. Horikawa J, Kamei H, Matsukawa K, Udo M (1979) Dynamic analysis of unrestrained walking cats. In: Ito M, Tsukahara N, Kubota K, Yagi K (eds) Integrative control functions of the brain, vol 2. Kodansha/Elsevier, Tokyo/Amsterdam, pp 173–175Google Scholar
  13. Manter JT (1938) The dynamics of quadrupedal walking. J Exp Biol 15: 522–540Google Scholar
  14. Melvill Jones G, Watt DGD (1971) Observation on the control of stepping and hopping movement in man. J Physiol (Lond) 219: 709–727Google Scholar
  15. Miller S, Ruit JB, van der Meché FGA (1977) Reversal of sign of long spinal reflexes dependent on the phase of the step cycle in the high decerebrate cat. Brain Res 128: 447–459PubMedCrossRefGoogle Scholar
  16. Miller S, van der Burg J, van der Meché FGA (1975) Coordination of movements of the hindlimbs and forelimbs in different forms of locomotion in normal and decerebrate cats. Brain Res 91: 217–237PubMedCrossRefGoogle Scholar
  17. Russel DF, Zajac FE (1979) Effects of stimulating Deiters'nucleus and medial longitudinal fasciculus on the timing of the fictive locomotor rhythm induced in cats by DOPA. Brain Res 177: 588–592CrossRefGoogle Scholar
  18. Sherrington CS (1910) Flexion-reflex of the limb, crossed extension reflex and reflex stepping and standing. J Physiol (Lond) 40: 28–131Google Scholar
  19. Udo M, Matsukawa K, Kamei H, Oda Y (1980) Cerebellar control of locomotion: Effects of cooling cerebellar intermediate cortex in the high decerebrate and awake walking cats. J Neurophysiol 44: 119–134PubMedGoogle Scholar
  20. Udo M, Kamei H, Matsukawa K, Tanaka K (1982) Interlimb coordination in cat locomotion investigated with perturbation: II. Correlates in neuronal activity of Deiters' cells of decerebrate walking cats. Exp Brain Res 46: 438–447PubMedCrossRefGoogle Scholar
  21. Wand P, Prochazka A, Sontag K-H (1980) Neuromuscular responses to gait perturbations in freely moving cats. Exp Brain Res 38: 109–114PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag 1982

Authors and Affiliations

  • K. Matsukawa
    • 1
  • H. Kamei
    • 1
  • K. Minoda
    • 1
  • M. Udo
    • 1
    • 2
  1. 1.Dept. of Biophysical Engineering, Faculty of Engineering ScienceOsaka UniversityOsakaJapan
  2. 2.Division of Neuromuscular Skills, Faculty of Health and Sport SciencesOsaka UniversityOsakaJapan

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