Publications

Below is a sample listing of recent publications from the lab.

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Neural Control of Rhythmic Movement

Link Rhythmic arm cycling differentially modulates stretch and H-reflex amplitudes in soleus muscle.
Palomino, AF, Hundza, SR, and Zehr, EP. (2011). Rhythmic arm cycling differentially modulates stretch and H-reflex amplitudes in soleus muscle, Exp Brain Res, 14(4):529-37.
Link Biomechanical outcomes and neural correlates of cutaneous reflexes evoked during rhythmic arm cycling.
Klimstra MD, Thomas E, Zehr EP.(2011). Biomechanical outcomes and neural correlates of cutaneous reflexes evoked during rhythmic arm cycling. J Biomech. Mar 15;44(5):802-9.
Link Context-dependent modulation of cutaneous reflex amplitudes during forward and backward leg cycling.
Zehr EP, Hundza SR, Balter JE, Loadman PM.(2009). Context-dependent modulation of cutaneous reflex amplitudes during forward and backward leg cycling. Motor Control. Oct;13(4):368-86.
Link Scientific insight that will guide future study of visual regulation of human locomotion - a testament to the contribution of Dr. Aftab Patla.
Zehr EP. (2008). Scientific insight that will guide future study of visual regulation of human locomotion - a testament to the contribution of Dr. Aftab Patla Exerc Sport Sci Rev. Jul;36(3):107-8.
Link Adaptation of cutaneous stumble correction when tripping is part of the locomotor environment.
Haridas C, Zehr EP, Misiaszek JE. (2008). Adaptation of cutaneous stumble correction when tripping is part of the locomotor environment. J Neurophysiol. Jun;99(6):2789-97.
Link Enhancement of arm and leg locomotor coupling with augmented cutaneous feedback from the hand
Zehr, E.P., M. Klimstra, K. Dragert, Y. Barzi, M.G. Bowden, B. Javan, and C. Phadke (2007). Enhancement of arm and leg locomotor coupling with augmented cutaneous feedback from the hand. J Neurophysiol 98:1810-1814
Link Recumbent stepping has similar but simpler neural control compared to walking
Stoloff, R., Zehr, E.P., and Ferris, D.P. (2007) Recumbent stepping has similar but simpler neural control compared to walking. Exp Brain Res 178:427-438
Link Corticospinal excitability is lower during rhythmic arm movement than during tonic contraction
Carroll, T.J., Baldwin, E.R.L.,Collins, D.F., and Zehr, E.P. (2006) Corticospinal excitability is lower during rhythmic arm movement than during tonic contraction. J. Neurophysiol. 95:914-21
Link Neural control of rhythmic human movement: the common core hypothesis
Zehr, E.P. (2005) Neural control of rhythmic human movement: the common core hypothesis. Exercise and Sport Sciences Reviews 33:54-60
Link Forward and backward arm cycling are regulated by equivalent neural mechanisms
Zehr, E.P., and Hundza, S.R. (2005) Forward and backward arm cycling are regulated by equivalent neural mechanisms. J Neurophysiol 93:633-640.
Link Possible contributions of spinal CPG activity to rhythmic human arm movement
Zehr, E.P., Carroll, T.J., Chua, R., Collins, D.F., Frigon, A., Haridas, C., Hundza, S.R., and Kido, A. (2004). Possible contributions of spinal CPG activity to rhythmic human arm movement. Can J Physiol. Pharm. 82(8/9):566-568.
Link Modulation of cutaneous reflexes in arm muscles during walking: further evidence for similar control mechanisms for rhythmic human arm and leg movements
Zehr, E.P., Haridas, C. (2003) Modulation of cutaneous reflexes in arm muscles during walking: further evidence for similar control mechanisms for rhythmic human arm and leg movements. Exp Brain Res. 149:260-266.
Link Neural control of cyclical human arm movement: phase-dependence and task modulation Hoffmann reflexes
Zehr, E.P., Collins, D.F., Frigon, A., Hoogenboom, N. (2003) Neural control of cyclical human arm movement: phase-dependence and task modulation Hoffmann reflexes J. Neurophysiol. 89:12-21.
Link Neural control of rhythmic, cyclical human arm movement: task-dependency, nerve-specificity, and phase-modulation of cutaneous reflexes
Zehr, E.P., Kido, A. (2001) Neural control of rhythmic, cyclical human arm movement: task-dependency, nerve-specificity, and phase-modulation of cutaneous reflexes. J. Physiol. 537:1033-1045.

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Neural Coupling Between the Arms and Legs During Locomotion

Link Robotic-assisted stepping modulates monosynaptic reflexes in forearm muscles in the human
Nakajima T, Kitamura T, Kamibayashi K, Komiyama T, Zehr EP, Hundza SR, Nakazawa K.(2011). Robotic-assisted stepping modulates monosynaptic reflexes in forearm muscles in the human. J Neurophysiol (July 20, 2011). doi:10.1152/jn.01049.2010
Link Multi-frequency arm cycling reveals bilateral locomotor coupling to increase movement symmetry
Vasudevan EV, Zehr EP. (2011). Multi-frequency arm cycling reveals bilateral locomotor coupling to increase movement symmetry, Exp Brain Res. Jun;211(2):299-312.
Link Interlimb coupling from the arms to legs is differentially specified for populations of motor units comprising the compound H-reflex during "reduced" human locomotion.
Mezzarane RA, Klimstra M, Lewis A, Hundza SR, Zehr EP.(2011). Interlimb coupling from the arms to legs is differentially specified for populations of motor units comprising the compound H-reflex during "reduced" human locomotion. Exp Brain Res. Jan;208(2):157-68.
Link Effects of leg pedaling on early latency cutaneous reflexes in upper limb muscles.
Sasada S, Tazoe T, Nakajima T, Zehr EP, Komiyama T. (2010). Effects of leg pedaling on early latency cutaneous reflexes in upper limb muscles. J Neurophys. Jul;104(1):210-7.
Link Phase-dependent modulation of soleus H-reflex amplitude induced by rhythmic arm cycling.
de Ruiter GC, Hundza SR, Zehr EP.(2010). Phase-dependent modulation of soleus H-reflex amplitude induced by rhythmic arm cycling. Neurosci Lett May 7;475(1):7-11.
Link Soleus h-reflex modulation during stance phase of walking with altered arm swing patterns.
Phadke CP, Klimstra M, Zehr EP, Thompson FJ, Behrman AL.(2010). Soleus h-reflex modulation during stance phase of walking with altered arm swing patterns. Motor Control. Jan;14(1):116-25.
Link Neuromechanical considerations for incorporating rhythmic arm movement in the rehabilitation of walking.
Klimstra MD, Thomas E, Stoloff RH, Ferris DP, Zehr EP. (2009). Neuromechanical considerations for incorporating rhythmic arm movement in the rehabilitation of walking. Chaos. Jun;19(2):026102.
Link The quadrupedal nature of human bipedal locomotion.
Zehr EP, Hundza SR, Vasudevan EV. (2009). The quadrupedal nature of human bipedal locomotion. Exerc Sport Sci Rev. Apr;37(2):102-8.
Link Rhythmic arm cycling modulates Hoffmann reflex excitability differentially in the ankle flexor and extensor muscles.
Dragert K, Zehr EP. (2009). Rhythmic arm cycling modulates Hoffmann reflex excitability differentially in the ankle flexor and extensor muscles. Neurosci Lett. Feb 6;450(3):235-8.
Link Suppression of soleus H-reflex amplitude is graded with frequency of rhythmic arm cycling.
Hundza SR, Zehr EP. (2009). Suppression of soleus H-reflex amplitude is graded with frequency of rhythmic arm cycling. Exp Brain Res. Feb;193(2):297-306.
Link Rhythmic arm cycling suppresses hyperactive Soleus H-reflex amplitude after stroke
Barzi, Y., and Zehr E.P. (2008) Rhythmic arm cycling suppresses hyperactive Soleus H-reflex amplitude after stroke. Clin Neurophysiol 119:1443-1452
Link Neural coupling between the arms and legs during rhythmic locomotor-like cycling movement
Balter, J.E., and Zehr, E.P. (2007) Neural coupling between the arms and legs during rhythmic locomotor-like cycling movement. J Neurophysiol 97:1809-1818
Link Enhancement of arm and leg locomotor coupling with augmented cutaneous feedback from the hand
Zehr, E.P., M. Klimstra, K. Dragert, Y. Barzi, M.G. Bowden, B. Javan, and C. Phadke (2007). Enhancement of arm and leg locomotor coupling with augmented cutaneous feedback from the hand. J Neurophysiol 98:1810-1814
Link Earth-referenced hand rail contact facilitates interlimb cutaneous reflexes during locomotion
Lamont, E.V., and Zehr, E.P. (2007). Earth-referenced hand rail contact facilitates interlimb cutaneous reflexes during locomotion. J Neurophysiol 98: 433-442.
Link Rhythmic leg cycling modulates forearm muscle H-reflex amplitude and corticospinal tract excitability
Zehr, E.P., M. Klimstra, E.A. Johnson, and T.J. Carroll. (2007) Rhythmic leg cycling modulates forearm muscle H-reflex amplitude and corticospinal tract excitability. Neurosci Lett 419:10-14.
Link Rhythmic arm cycling produces a non-specific signal of generalized activity that suppresses Soleus H-reflex amplitude in stationary legs
Loadman, P., and Zehr,E.P. (2007) Rhythmic arm cycling produces a non-specific signal of generalized activity that suppresses Soleus H-reflex amplitude in stationary legs. Exp Brain Res. 179:199-208.
Link Context-Dependent Modulation of Interlimb Cutaneous Reflexes in Arm Muscles as a Function of Stability Threat During Walking
Haridas, C., Zehr, E.P., and Misiaszek, J.E. (2006) Context-Dependent Modulation of Interlimb Cutaneous Reflexes in Arm Muscles as a Function of Stability Threat During Walking. J Neurophysiol 96:3096-3103.
Link Facilitation of soleus H-reflex amplitude evoked by cutaneous nerve stimulation at the wrist is not suppressed by rhythmic arm movement
Zehr, E.P., Hoogenboom, N., Frigon, A.F., and Collins, D.F. (2004). Facilitation of soleus H-reflex amplitude evoked by cutaneous nerve stimulation at the wrist is not suppressed by rhythmic arm movement. Exp Brain Res.159: 382-388.
Link Regulation of arm and leg movement during human locomotion
Zehr, E.P., Duysens, J. (2004) Regulation of arm and leg movement during human locomotion. The Neuroscientist 10(4): 347-361
Link Effect of arm movement on reflexes in the legs: modulation of soleus H-reflexes and somatosensory conditioning
Frigon, A.F., Collins, D.F., and Zehr, E.P. (2004) Effect of arm movement on reflexes in the legs: modulation of soleus H-reflexes and somatosensory conditioning. J Neurophysiol. 91:1516-1523.
Link Coordinated interlimb compensatory responses to electrical stimulation of cutaneous nerves in the hand and foot during walking
Haridas, C., and Zehr, E.P. (2003) Coordinated interlimb compensatory responses to electrical stimulation of cutaneous nerves in the hand and foot during walking. J Neurophysiol 90:2850-2861.

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Neuromuscular Plasticity

Link Persistence of locomotor-related interlimb reflex networks during walking after stroke
Zehr, EP, and Loadman, PM. (2011). Persistence of locomotor-related interlimb reflex networks during walking after stroke, Clin Neurophysiol. doi:10.1016/j.clinph.2011.07.049
Link Bilateral neuromuscular plasticity from unilateral training of the ankle dorsiflexors.
Dragert K, Zehr EP.(2011). Bilateral neuromuscular plasticity from unilateral training of the ankle dorsiflexors.Exp Brain Res. Jan;208(2):217-27.
Link Postactivation potentiation of force is independent of h-reflex excitability.
Hodgson MJ, Docherty D, Zehr EP.(2008). Postactivation potentiation of force is independent of h-reflex excitability. Int J Sports Physiol Perform. Jun;3(2):219-31.
Link Short-term plasticity of spinal reflex excitability induced by rhythmic arm movement
Javan, B., and Zehr, E.P. (2008) Short-term plasticity of spinal reflex excitability induced by rhythmic arm movement. J Neurophysiol 99:2000-2005.
Link Training-induced adaptive plasticity in human somatosensory reflex pathways
Zehr, E.P. (2006) Training-induced adaptive plasticity in human somatosensory reflex pathways. J Appl Physiol 101:1783-1794.
Link Increased Spinal Reflex Excitability is Not Responsible For Neural Plasticity Underlying the Cross Education Effect
Lagerquist, O., Zehr, E.P., and Docherty, D. (2006) Increased Spinal Reflex Excitability is Not Responsible For Neural Plasticity Underlying the Cross Education Effect. J Appl Physiol. 100:83-90
Link Diurnal changes in the amplitude of the Hoffmann reflex in human soleus but not flexor carpi radialis muscle
Lagerquist, O., Zehr, E.P., Collins, D.F., Baldwin, R.L., and Klacowicz, P.M. (2006) Diurnal changes in the amplitude of the Hoffmann reflex in human soleus but not flexor carpi radialis muscle. Exp Brain Res. 170:1-6.

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