Publications

2017

Shin, H., Watkins, Z., and Hu, X. (2017) Exploration of hand grasp patterns elicitable through non-invasive proximal nerve stimulation. Scientific Reports, In Press

McManus, L. M., Hu, X., Rymer, W. Z., Suresh, N. L., Lowery, M. M. (2017). Motor unit activity during fatiguing isometric muscle contraction in hemispheric stroke survivors. Frontiers in Human Neuroscience, In Press

Dai, C., Shin, H., Davis, B., Hu, X. (2017). Origins of common neural inputs to different compartments of the extensor digitorum communis muscle. Scientific Reports, 7:13960.

Shin, H., Suresh, N. L., Rymer, W. Z., Hu, X. (2017). Relative contribution of different altered motor unit control to muscle weakness in stroke: a simulation study. Journal of Neural Engineering, In Press

Lei Y., Suresh, N. L., Rymer, W. Z., Hu, X. (2017). Organization of the motor-unit pool for different directions of isometric contraction of the first dorsal interosseous muscle. Muscle and Nerve, In Press

Dai C., Suresh N. L., Suresh A. K., Rymer W. Z., Hu X. (2017). Altered motor unit discharge coherence in paretic muscles of stroke survivors. Frontiers in Neurology. 8:202.

2016

Hu, X., Afsharipour,B., Rymer, W. Z., Suresh, N. L. (2016). Impairment of muscle force transmission in spastic-paretic muscles of stroke survivors. Proceedings of IEEE Engineering in Medicine and Biology Society, 6098-6101.

Hu, X., Suresh, A. K., Rymer, W. Z., Suresh, N. L. (2016).  Altered motor unit discharge patterns in paretic muscles of stroke survivors assessed using surface electromyography, Journal of Neural Engineering 13 046025.

McManus, L. M., Hu, X., Rymer, W. Z., Suresh, N.L., Lowery, M.M. (2016).  Muscle fatigue increases beta-band coherence between the firing times of simultaneously active motor units in the first dorsal interosseous muscle.  Journal of Neurophysiology, 115(6):2830-2839.

2015

Hu, X., Suresh, N. L., Xue, C., Rymer, W. Z. (2015), Extracting extensor digitorum communis activation patterns using high-density surface electromyography, Frontiers in Physiology, 6: 279.

Rasool, G., Afsharipour, B., Suresh, N.L., Hu, X., Rymer, W.Z. (2015). Spatial analysis of muscular activations in stroke survivors. Proceedings of IEEE Engineering in Medicine and Biology Society, 6058-6061.

Hu, X., Suresh, A. K., Rymer, W. Z., Suresh, N. L. (2015).  Assessing altered motor unit recruitment patterns in paretic muscles of stroke survivors using surface electromyography, Journal of Neural Engineering, 12: 066001.

McManus, L., Hu, X., Rymer, W. Z., Lowery, M. M., & Suresh, N. L. (2015) Changes in motor unit behavior following isometric fatigue of the first dorsal interosseous muscle. Journal of Neurophysiology 113(9), 3186-3196.

Hu, X., Suresh, N. L., & Rymer, W. Z. (2015) Estimating the time course of population excitatory postsynaptic potentials in motoneurons of spastic stroke survivors. Journal of Neurophysiology 113(6), 1952-1957.

Hu, X., Suresh, N. L., Chardon, M. K., & Rymer, W. Z. (2015) Contributions of motoneuron hyperexcitability to clinical spasticity in hemispheric stroke survivors. Clinical Neurophysiology, 126(8), 1599-1606.

McManus, L., Hu, X., Rymer, W. Z., Suresh, N. L., & Lowery, M. M. (2015). Fatigue-related alterations to intra-muscular coherence. Proceedings of IEEE EMBS Conference on Neural Engineering, 902-905.

2014

Hu, X., Rymer, W. Z., Suresh, N. L. (2014) Control of motor unit firing during step-like increases in voluntary force. Frontiers in Human Neuroscience 8:721.

Suresh, A. K., Hu, X., Powers, R. K., Suresh, N. L., Heckman, C. J., Rymer, W. Z. (2014). Changes in motoneuron afterhyperpolarization duration in stroke survivors. Journal of Neurophysiology 112(6), 1447-1456.

Jahanmiri-Nezhad, F., Hu, X., Suresh, N. L., Rymer, W. Z., Zhou, P. (2014). EMG-force relation in the first dorsal interosseous muscle of patients with amyotrophic lateral sclerosis. NeuroRehabilitation, 35(2), 307-14.

Hu, X., Rymer, W. Z., Suresh, N. L. (2014). Motor unit firing rate patterns during voluntary muscle force generation: a simulation study. Journal of Neural Engineering 11(2), 026015.

Hu, X., Rymer, W. Z., Suresh, N. L. (2014). Accuracy assessment of a surface electromyogram decomposition system in human first dorsal interosseous muscle. Journal of Neural Engineering 11(2), 026007.

Hu, X., Suresh, N. L., Jeon, B., Shin, H., Rymer, W. Z. (2014). Statistics of inter-spike intervals as a routine measure of accuracy in automatic decomposition of surface electromyogram. Proceedings of IEEE Engineering in Medicine and Biology Society, 3541-3544

2013

Hu, X., Rymer, W. Z., Suresh, N. L. (2013). Assessment of validity of the high-yield surface electromyogram decomposition. Journal of NeuroEngineering and Rehabilitation, 10: 99.

Hu, X., Rymer, W. Z., Suresh, N. L. (2013). Reliability of spike triggered averaging of the surface electromyogram for motor unit action potential estimation. Muscle & Nerve, 48(4), 557-570.

Hu, X., Rymer, W. Z., Suresh, N. L. (2013). Motor unit pool organization examined via spike triggered averaging of the surface electromyogram. Journal of Neurophysiology, 110(5), 1205-1220.

Jeon, B., Suresh, N. L., Suresh, A. K., Rymer, W. Z., Hu, X. (2013). Motor unit structural change post stroke examined via surface electromyography: a preliminary report. Proceedings of IEEE EMBS Conference on Neural Engineering, 1234-1237.

Srivatsan, S., Hu, X., Suresh, A. K., Rymer, W. Z., Suresh, N. L. (2013). Power spectral analysis of surface EMG in stroke: a preliminary study. Proceedings of IEEE EMBS Conference on Neural Engineering, 1606-1609.

2012

Hu, X., & Newell, K. M. (2012). Force and time gain interact to nonlinearly scale adaptive visual-motor isometric force control. Experimental Brain Research, 221(2), 191-203.

Hu, X., & Newell, K. M. (2012). Asymmetrical interference associated with force amplitude and hand dominance in bimanual constant isometric force. Motor Control, 16(3), 297-316.

Hu, X., Mazich, M. M., & Newell, K. M. (2012). Time gain influences adaptive visual-motor isometric force control. Experimental Brain Research, 218(1), 73-80.

Suresh, A. K., Hu, X., Powers, R., Rymer, W. Z. (2012). Examination of afterhyperpolarization duration changes in motoneurons innervating paretic muscles in stroke survivors. Proceedings of IEEE Engineering in Medicine and Biology Society, 3580-3583.

Hu, X., Suresh, A. K., Li, X., Rymer, W. Z., Suresh, N. L. (2012). Impaired motor unit control in paretic muscle post stroke assessed using surface electromyography: A preliminary report. Proceedings of IEEE Engineering in Medicine and Biology Society, 4116-4119.

2011-earlier

Hu, X., & Newell, K. M. (2011). Aging, visual information, and adaptability to task asymmetry in bimanual force coordination. Journal of Applied Physiology, 111(6), 1671-1680.

Hu, X., & Newell, K. M. (2011). Modeling constraints to redundancy in bimanual force coordination. Journal of Neurophysiology, 105(5), 2169-2180.

Hu, X., & Newell, K. M. (2011). Visual information gain and task asymmetry interact in bimanual force coordination and control. Experimental Brain Research, 212(4), 497-504.

Hu, X., & Newell, K. M. (2011). Motor-unit pool model of continuous and discrete force variability. Motor Control, 15(4), 439-455.

Hu, X., Loncharich, M., & Newell, K. M. (2011). Visual information interacts with neuromuscular factors in the coordination of bimanual isometric force. Experimental Brain Research, 209(1), 129-138.

Sternad, D., Abe, M. O., Hu, X., Müller, H. (2011) Neuromotor noise, error tolerance and velocity-dependent costs in skilled performance. PLoS Computational Biology, 7(9), e1002159.

Hu, X., & Newell, K. M. (2011). Adaptation to bimanual asymmetric weights in isometric force coordination. Neuroscience Letters, 490(2), 121-125.

Hu, X., & Newell, K. M. (2011). Dependence of asymmetrical interference on task demands and hand dominance in bimanual isometric force tasks. Experimental Brain Research, 208(4), 533-541.

Hu, X., & Newell, K. M. (2010). Adaptation to selective visual scaling of short time scale processes in isometric force. Neuroscience Letters, 469(1), 131-134.