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Reflex and non-reflex torque responses to stretch of the human knee extensors

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Abstract

Reflex responses to unexpected stretches are well documented for selected muscles in both animal and human. Moreover, investigations of their possible functional significance have revealed that stretch reflexes can contribute substantially to the overall stiffness of a joint. In the lower extremity only the muscles spanning the human ankle joint have been investigated in the past. This study implemented a unique hydraulic actuator to study the contributions of the knee extensor stretch reflex to the overall knee joint torque. The quadriceps muscles were stretched at various background torques, produced either voluntarily or by electrical stimulation, and thus the purely reflex mediated torque could be calculated. The stretch had a velocity of 67°/s and an amplitude of 20°. A reflex response as measured by electromyography (EMG) was observed in all knee extensors at latencies of 26 – 36 ms. Both phasic and tonic EMG stretch responses increased with increasing background torques. Lines of best fit produced correlation coefficients of 0.59 – 0.78. This study is the first to examine the reflex contribution of the knee extensors to the total torque at background torques of 0 – 90% MVC. The contribution of the reflex mediated torque is initially low and peaked at background torques of 20 – 40% MVC. In terms of the total torque the reflex contributed 16 – 52% across all levels of background torque. It is concluded that during medium background torque levels such as those obtained during walking, the stretch reflex of the quadriceps muscle group contributes substantially to the total torque around the knee joint.

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Reference

  • Allum JH, Mauritz KH (1984) Compensation for intrinsic muscle stiffness by short-latency reflexes in human triceps surae muscles. J Neurophysiol 52:797–818

    CAS  PubMed  Google Scholar 

  • Allum JH, Mauritz KH, Vogele H (1982) The mechanical effectiveness of short latency reflexes in human triceps surae muscles revealed by ischaemia and vibration. Exp Brain Res 48:153–156

    CAS  PubMed  Google Scholar 

  • Capaday C (2002) The special nature of human walking and its control Trends Neurosci 25:370–376

    Article  CAS  Google Scholar 

  • Carter RR, Crago PE, Keith MW (1990) Stiffness regulation by reflex action in the normal human hand. J Neurophysiol 64:105–118

    CAS  PubMed  Google Scholar 

  • Christensen LO, Petersen N, Andersen JB, Sinkjaer T, Nielsen JB (2000) Evidence for transcortical reflex pathways in the lower limb of man. Prog Neurobiol 62:251–272

    Article  CAS  PubMed  Google Scholar 

  • Crago PE, Houk JC, Hasan Z (1976) Regulatory actions of human stretch reflex J Neurophysiol 39:925–935

    CAS  Google Scholar 

  • Dietz V, Discher M, Faist M, Trippel M (1990) Amplitude modulation of the human quadriceps tendon jerk reflex during gait. Exp Brain Res 82:211–213

    CAS  PubMed  Google Scholar 

  • Garland SJ, Gerilovsky L, Enoka RM (1994) Association between muscle architecture and quadriceps femoris H-reflex. Muscle Nerve 17:581–592

    CAS  PubMed  Google Scholar 

  • Grey MJ, Ladouceur M, Andersen JB, Nielsen JB, Sinkjaer T (2001) Group II muscle afferents probably contribute to the medium latency soleus stretch reflex during walking in humans. J Physiol (Lond) 534:925–933

    Google Scholar 

  • Grey MJ, Larsen B, Sinkjaer T (2002) A task dependent change in the medium latency component of the soleus stretch reflex. Exp Brain Res 145:316–322

    Article  PubMed  Google Scholar 

  • Hoffer JA, Andreassen S (1981) Regulation of soleus muscle stiffness in premammillary cats: intrinsic and reflex components. J Neurophysiol 45:267–285

    CAS  PubMed  Google Scholar 

  • Kearney RE, Stein RB, Parameswaran L (1997) Identification of intrinsic and reflex contributions to human ankle stiffness dynamics. IEEE Trans Biomed Eng 44:493–504

    CAS  PubMed  Google Scholar 

  • Lamontagne A, Voigt M, Larsen K, Sinkjaer T (2000) Early and late components of the quadriceps stretch reflex in human. Proceedings of the Society for Neuroscience, Annual Meeting 26, New Orleans

  • Liddell EGT, Sherrington CS (1924) Reflexes in response to stretch-myotatic reflexes. Proc R Soc Lond B Biol Sci 96:212–242

    Google Scholar 

  • Lin DC, Rymer WZ (1993) Mechanical properties of cat soleus muscle elicited by sequential ramp stretches: implications for control of muscle. J Neurophysiol 70:997–1008

    CAS  PubMed  Google Scholar 

  • Marsden CD, Merton PA, Morton HB (1976) Servo action in the human thumb. J Neurophysiol 257:1–44

    CAS  Google Scholar 

  • Matthews PB (1986) Observations on the automatic compensation of reflex gain on varying the pre-existing level of motor discharge in man. J Physiol (Lond) 374:73–90

    Google Scholar 

  • Mirbagheri MM, Barbeau H, Kearney RE (2000) Intrinsic and reflex contributions to human ankle stiffness: variation with activation level and position. Exp Brain Res 135:423–436

    Article  CAS  PubMed  Google Scholar 

  • Mrachacz N, Lavoie B, Sinkjaer T (2000) Characterization of the human quadriceps stretch reflex during human walking. Proceedings of the Society for Neuroscience, Annual Meeting 26, New Orleans

  • Nardone A, Tarantola J, Miscio G, Pisano F, Schenone A, Schieppati M (2000) Loss of large-diameter spindle afferent fibres is not detrimental to the control of body sway during upright stance: evidence from neuropathy. Exp Brain Res 135:155–162

    CAS  PubMed  Google Scholar 

  • Nichols TR, Houk JC (1976) Improvement in linearity and regulation of stiffness that results from actions of stretch reflex. J Neurophysiol 39:119–142

    CAS  PubMed  Google Scholar 

  • Nielsen JB, Sinkjaer T (2002) Afferent feedback in the control of human gait. J Electromyogr Kinesiol 12:213–217

    Article  CAS  PubMed  Google Scholar 

  • Schieppati M, Nardone A (1999) Group II spindle afferent fibers in humans: their possible role in the reflex control of stance. Prog Brain Res 123:461–472

    CAS  PubMed  Google Scholar 

  • Sinkjaer T (1997) Muscle, reflex and central components in the control of the ankle joint in healthy and spastic man. Acta Neurol Scand Suppl 170:1–28

    CAS  PubMed  Google Scholar 

  • Sinkjaer T, Hayashi R (1989) Regulation of wrist stiffness by the stretch reflex. J Biomech 22:1133–1140

    CAS  PubMed  Google Scholar 

  • Sinkjaer T, Toft E, Andreassen S, Hornemann BC (1988) Muscle stiffness in human ankle dorsiflexors: intrinsic and reflex components. J Neurophysiol 60:1110–1121

    CAS  PubMed  Google Scholar 

  • Sinkjaer T, Toft E, Larsen K, Andreassen S (1993) EMG-Torque dynamics at different contraction levels in human ankle muscles. J Electromyogr Kinesiol 3:67–77

    Google Scholar 

  • Sinkjaer T, Andersen JB, Ladouceur M, Christensen LO, Nielsen JB (2000) Major role for sensory feedback in soleus EMG activity in the stance phase of walking in man. J Physiol (Lond) 523:817–827

    Google Scholar 

  • Stein RB, Capaday C (1988) The modulation of human reflexes during functional motor tasks. Trends Neurosci 11:328–332

    CAS  PubMed  Google Scholar 

  • Stein RB, Kearney RE (1995) Nonlinear behavior of muscle reflexes at the human ankle joint. J Neurophysiol 73:65–72

    CAS  PubMed  Google Scholar 

  • Thomson DB, Chapman AE (1988) The mechanical response of active human muscle during and after stretch. Eur J Appl Physiol Occup Physiol 57:691–697

    CAS  PubMed  Google Scholar 

  • Toft E, Sinkjaer T, Andreassen S, Larsen K (1991) Mechanical and electromyographic responses to stretch of the human ankle extensors. J Neurophysiol 65:1402–1410

    CAS  PubMed  Google Scholar 

  • Toft E, Sinkjaer T, Andreassen S, Hansen HJ (1993) Stretch responses to ankle rotation in multiple sclerosis patients with spasticity. Electroencephalogr Clin Neurophysiol 89:311–318

    CAS  PubMed  Google Scholar 

  • Voigt M, de Zee M, Sinkjaer T (1999) A fast servo-controlled hydraulic device for the study of muscle mechanical and reflex properties in humans. Proceedings of the 17th Congress of the International Society of Biomechanics, Calgary

  • Wilmink RJH, Huyghues CMJI, Nichols TR (1997) Gastrocnemius muscles provide a major source of interjoint force feedback in the cat hindlimb. Proceedings of the Society for Neuroscience, Annual Meeting 23, New Orleans

  • Yang JF, Stein RB, James KB (1991) Contribution of peripheral afferents to the activation of the soleus muscle during walking in humans. Exp Brain Res 87:679–687

    CAS  PubMed  Google Scholar 

  • Zhang LQ, Nuber G, Butler J, Bowen M, Rymer WZ (1998) In vivo human knee joint dynamic properties as functions of muscle contraction and joint position. J Biomech 31:71–76

    CAS  PubMed  Google Scholar 

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Acknowledgements

This study was funded by The Danish National Research Foundation. The authors also express their gratitude to Knud Larsen for his technical support.

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  1. Center for Sensory-Motor Interaction, Department of Health Science and Technology, Aalborg University, Fredrik Bajers Vej 7 D-3, 9220, Aalborg, Denmark

    N. Mrachacz-Kersting & T. Sinkjaer

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  1. N. Mrachacz-Kersting
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  2. T. Sinkjaer
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Correspondence to N. Mrachacz-Kersting.

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Mrachacz-Kersting, N., Sinkjaer, T. Reflex and non-reflex torque responses to stretch of the human knee extensors. Exp Brain Res 151, 72–81 (2003). https://doi.org/10.1007/s00221-003-1483-8

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  • DOI: https://doi.org/10.1007/s00221-003-1483-8

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