W. Rymer

W. Rymer, D. Reinkensmeyer, L. Kahn, 2001, 2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Guest Editorial Brain–Computer Interface Technology: A Review of the Second International Meeting

William Z Rymer, Niels Birbaumer, Jonathan R Wolpaw, 2001 .

Simultaneous and nonlinear identification of mechanical and reflex properties of human elbow joint muscles

Li-Qun Zhang, W. Rymer, Li-Qun Zhang, 1997, IEEE Transactions on Biomedical Engineering.

Spastic hypertonia: mechanisms and measurement.

W. Rymer, R. Katz, 1989, Archives of physical medicine and rehabilitation.

Robotic devices for physical rehabilitation of stroke patients: fundamental requirements, target therapeutic techniques, and preliminary designs

W. Rymer, D. Reinkensmeyer, J. Dewald, 1996 .

Mechatronic assessment of arm impairment after chronic brain injury.

W. Rymer, D. Reinkensmeyer, B. Schmit, 1999, Technology and health care : official journal of the European Society for Engineering and Medicine.

Guidance-based quantification of arm impairment following brain injury: a pilot study.

W. Rymer, D. Reinkensmeyer, J. Dewald, 1999, IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society.

Deficits in the coordination of multijoint arm movements in patients with hemiparesis: evidence for disturbed control of limb dynamics

W. Rymer, J. Dewald, R. Beer, 2000, Experimental Brain Research.

A quantitative analysis of pendular motion of the lower leg in spastic human subjects

W. Rymer, D. C. Lin, 1991, IEEE Transactions on Biomedical Engineering.

Muscle stiffness during transient and continuous movements of cat muscle: perturbation characteristics and physiological relevance

W. Rymer, R. Kirsch, D. Boskov, 1994, IEEE Transactions on Biomedical Engineering.

Understanding and treating arm movement impairment after chronic brain injury: progress with the ARM guide.

W. Rymer, D. Reinkensmeyer, L. Kahn, 2014, Journal of rehabilitation research and development.

Muscles, Reflexes, and Locomotion.Thomas A. McMahon

W. Rymer, 1985 .

Alterations in upper limb muscle synergy structure in chronic stroke survivors.

W. Rymer, Jinsook Roh, E. Perreault, 2013, Journal of neurophysiology.

Damping actions of the neuromuscular system with inertial loads: human flexor pollicis longus muscle.

W. Rymer, D. C. Lin, 2001, Journal of neurophysiology.

Contribution of intrinsic properties and synaptic inputs to motoneuron discharge patterns: a simulation study.

Sherif M. Elbasiouny, W. Rymer, C. Heckman, 2012, Journal of neurophysiology.

An estimate of the secondary spindle receptor afferent contribution to the stretch reflex in extensor muscles of the decerebrate cat.

W. Rymer, K. Kanda, 1977, The Journal of physiology.

Disturbances of motor unit rate modulation are prevalent in muscles of spastic-paretic stroke survivors.

W. Rymer, C. Heckman, R. Powers, 2014, Journal of neurophysiology.

Effects of changes in hip joint angle on H-reflex excitability in humans

W. Rymer, M. Knikou, 2002, Experimental Brain Research.

Strategies for muscle activation during isometric torque generation at the human elbow.

W. Rymer, T. Buchanan, G. Rovai, 1989, Journal of neurophysiology.

Robot-assisted reaching exercise promotes arm movement recovery in chronic hemiparetic stroke: a randomized controlled pilot study

W. Rymer, D. Reinkensmeyer, L. Kahn, 2006, Journal of NeuroEngineering and Rehabilitation.

End points of planar reaching movements are disrupted by small force pulses: an evaluation of the hypothesis of equifinality.

W. Rymer, F. Popescu, W. Z. Rymer, 2000, Journal of neurophysiology.

Relative contributions of neural mechanisms versus muscle mechanics in promoting finger extension deficits following stroke

W. Rymer, D. Kamper, R. Harvey, 2003, Muscle & nerve.

Impairment of voluntary control of finger motion following stroke: Role of inappropriate muscle coactivation

W. Rymer, D. Kamper, W. Rymer, 2001, Muscle & nerve.

Therapeutic effects of robotic-assisted locomotor training on neuromuscular properties

W. Rymer, M. Mirbagheri, C. Tsao, 2005, 9th International Conference on Rehabilitation Robotics, 2005. ICORR 2005..

A Tendon Indentation Method to Quantify Velocity-Dependent Reflex Responses after Hemispheric Stroke

William Z Rymer, Taimoor Afzal, Nina L Suresh, 2019, 2019 41st Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC).

Estimation of musculotendon kinematics under controlled tendon indentation.

W. Rymer, Matthieu K. Chardon, Y. Dhaher, 2015, Journal of biomechanics.

Quantifying the Deep Tendon Reflex Using Varying Tendon Indentation Depths: Applications to Spasticity

W. Rymer, Matthieu K. Chardon, N. L. Suresh, 2014, IEEE Transactions on Neural Systems and Rehabilitation Engineering.

Stretch reflex dynamics in spastic elbow flexor muscles

W. Rymer, W. Rymer, R. Powers, 1989, Annals of neurology.

Assessing altered motor unit recruitment patterns in paretic muscles of stroke survivors using surface electromyography

Aneesha K. Suresh, W. Rymer, N. L. Suresh, 2015, Journal of neural engineering.

Duration of observation required in detecting fasciculation potentials in amyotrophic lateral sclerosis using high-density surface EMG

W. Rymer, P. Zhou, Xiaoyan Li, 2012, Journal of NeuroEngineering and Rehabilitation.

Adaptive assistance for guided force training in chronic stroke

W. Rymer, D. Reinkensmeyer, L. Kahn, 2004, The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Robotic Devices for Movement Therapy After Stroke: Current Status and Challenges to Clinical Acceptance

W. Rymer, D. Reinkensmeyer, C. Burgar, 2002, Topics in stroke rehabilitation.

Can standard surface EMG processing parameters be used to estimate motor unit global firing rate?

W. Rymer, P. Zhou, W. Zev Rymer, 2004, Journal of neural engineering.

Endpoint force fluctuations reveal flexible rather than synergistic patterns of muscle cooperation.

W. Rymer, A. Kuo, A. Bloch, 2008, Journal of neurophysiology.

Assessment of Active and Passive Restraint During Guided Reaching After Chronic Brain Injury

W. Rymer, D. Reinkensmeyer, B. Schmit, 1999, Annals of Biomedical Engineering.

Identification of Static and Dynamic Components of Reflex Sensitivity in Spastic Elbow Flexors Using a Muscle Activation Model

W. Rymer, B. Schmit, 2001, Annals of Biomedical Engineering.

Reducing Abnormal Muscle Coactivation After Stroke Using a Myoelectric-Computer Interface

Marc W Slutzky, Zachary A Wright, W Zev Rymer, 2014, Neurorehabilitation and neural repair.

Locomotor training modifies soleus monosynaptic motoneuron responses in human spinal cord injury

W. Rymer, M. Knikou, Andrew C. Smith, 2014, Experimental Brain Research.

Locomotor training alters the behavior of flexor reflexes during walking in human spinal cord injury.

William Zev Rymer, Maria Knikou, W. Rymer, 2014, Journal of neurophysiology.

Modulation of flexion reflex induced by hip angle changes in human spinal cord injury

William Zev Rymer, Maria Knikou, W. Rymer, 2005, Experimental Brain Research.

In vivo human knee joint dynamic properties as functions of muscle contraction and joint position.

W. Rymer, L. Zhang, G. Nuber, 1997, Journal of biomechanics.

Re-evaluation of EMG-torque relation in chronic stroke using linear electrode array EMG recordings

Ping Zhou, Sheng Li, W. Zev Rymer, 2016, Scientific reports.

Innervation zones of fasciculating motor units: observations by a linear electrode array

Ping Zhou, Faezeh Jahanmiri-Nezhad, Paul E. Barkhaus, 2015, Front. Hum. Neurosci..

Imaging three-dimensional innervation zone distribution in muscles from M-wave recordings

Ping Zhou, Yingchun Zhang, Chuan Zhang, 2017, Journal of neural engineering.

A biomechanical simulation of the effect of the extrinsic flexor muscles on finger joint flexion

W. Rymer, D. Kamper, 2001, 2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

A Pilot Study on the Feasibility of Robot-Aided Leg Motor Training to Facilitate Active Participation

Rajiv Ranganathan, Yasin Y. Dhaher, Chandramouli Krishnan, 2013, PloS one.

Active robotic training improves locomotor function in a stroke survivor

Rajiv Ranganathan, William Z Rymer, Chandramouli Krishnan, 2012, Journal of NeuroEngineering and Rehabilitation.

Motor Unit Activity during Fatiguing Isometric Muscle Contraction in Hemispheric Stroke Survivors

W. Rymer, M. Lowery, N. L. Suresh, 2017, Front. Hum. Neurosci..

synchronizationEMGs for two muscles to detect motor unit Sensitivity of the cross-correlaton between simulated

William V. Massey, W. Rymer, A. Kuo, 2015 .

Varied movement errors drive learning of dynamic balance control during walking in people with incomplete spinal cord injury: a pilot study

W. Rymer, David Chen, Ming Wu, 2020, Experimental Brain Research.

Error variability affects the after effects following motor learning of lateral balance control during walking in people with spinal cord injury

W. Rymer, David Chen, Ming Wu, 2019, The European journal of neuroscience.

Motor Adaptation to Weight Shifting Assistance Transfers to Overground Walking in People with Spinal Cord Injury

W. Rymer, David Chen, Ming Wu, 2019, PM & R : the journal of injury, function, and rehabilitation.

Prediction of Natural History of Neuromuscular Properties After Stroke Using Fugl-Meyer Scores at 1 Month

W. Rymer, M. Mirbagheri, T. Lilaonitkul, 2011, Neurorehabilitation and neural repair.

Surface EMG in Clinical Assessment and Neurorehabilitation: Barriers Limiting Its Use

W. Rymer, R. Merletti, C. Disselhorst-Klug, 2020, Frontiers in Neurology.

Effect of compensatory hypertrophy studied in individual motor units in medial gastrocnemius muscle of the cat.

W. Rymer, R. Burke, P. Tsairis, 1978, Journal of neurophysiology.

Biomechanics and neural control of movement, 20 years later: what have we learned and what has changed?

Andrew D. Nordin, F. Horak, A. Schwartz, 2017, Journal of NeuroEngineering and Rehabilitation.

Abnormal muscle coactivation patterns during isometric torque generation at the elbow and shoulder in hemiparetic subjects.

W. Rymer, T. Buchanan, J. Dewald, 1995, Brain : a journal of neurology.

Stretch reflex adaptation in elbow flexors during repeated passive movements in unilateral brain-injured patients.

W. Rymer, J. Dewald, B. Schmit, 2000, Archives of physical medicine and rehabilitation.

Robot-assisted movement training for the stroke-impaired arm: Does it matter what the robot does?

W. Rymer, D. Reinkensmeyer, L. Kahn, 2006, Journal of rehabilitation research and development.

Assessing dexterity function: a comparison of two alternatives for the NIH Toolbox.

Richard W. Bohannon, W. Rymer, R. Gershon, 2011, Journal of hand therapy : official journal of the American Society of Hand Therapists.

Characteristics of motor unit discharge in subjects with hemiparesis

W. Rymer, J. Gemperline, S. Allen, 1995, Muscle & nerve.

Reliability of spike triggered averaging of the surface electromyogram for motor unit action potential estimation

W. Rymer, N. L. Suresh, Xiaogang Hu, 2013, Muscle & nerve.

Extracting extensor digitorum communis activation patterns using high-density surface electromyography

W. Rymer, N. L. Suresh, Xiaogang Hu, 2015, Front. Physiol..

Altered motor unit discharge patterns in paretic muscles of stroke survivors assessed using surface electromyography

Aneesha K. Suresh, W. Rymer, N. L. Suresh, 2016, Journal of neural engineering.

Accuracy assessment of a surface electromyogram decomposition system in human first dorsal interosseus muscle

W. Rymer, N. L. Suresh, Xiaogang Hu, 2014, Journal of neural engineering.

Muscle and reflex changes with varying joint angle in hemiparetic stroke

W. Rymer, M. Mirbagheri, L. Alibiglou, 2008, Journal of NeuroEngineering and Rehabilitation.

Separate quantification of reflex and nonreflex components of spastic hypertonia in chronic hemiparesis.

W. Rymer, E. Roth, Z. Bai, 2008, Archives of physical medicine and rehabilitation.

Quantifying changes in material properties of stroke-impaired muscle.

Sabrina S. M. Lee, W. Rymer, Sam C Spear, 2015, Clinical biomechanics.

Use of shear wave ultrasound elastography to quantify muscle properties in cerebral palsy.

Sabrina S. M. Lee, W. Rymer, Li-Qun Zhang, 2016, Clinical biomechanics.

Wipe and flexion reflexes of the frog. II. Response to perturbations.

W. Rymer, J. Schotland, 1993, Journal of neurophysiology.

Spatial Analysis of Multichannel Surface EMG in Hemiplegic Stroke

W. Rymer, G. Rasool, N. L. Suresh, 2017, IEEE Transactions on Neural Systems and Rehabilitation Engineering.

Quantitative features of the stretch response of extrinsic finger muscles in hemiparetic stroke

D G Kamper, W Z Rymer, W. Rymer, 2000, Muscle & nerve.

The Effect of Motor Imagery on Spinal Segmental Excitability

William Z Rymer, Derek G Kamper, Sheng Li, 2004, The Journal of Neuroscience.

Objective quantification of spastic hypertonia: correlation with clinical findings.

W Z Rymer, W. Rymer, R. Katz, 1992, Archives of physical medicine and rehabilitation.

MUAP Number Estimates in Surface EMG: Template-Matching Methods and Their Performance Boundaries

Ping Zhou, William Z. Rymer, W. Rymer, 2004, Annals of Biomedical Engineering.

Abnormal spatial patterns of elbow muscle activation in hemiparetic human subjects.

D Bourbonnais, W Z Rymer, W. Rymer, 1989, Brain : a journal of neurology.

Anodal Transcranial Direct Current Stimulation Alters Elbow Flexor Muscle Recruitment Strategies

Rajiv Ranganathan, Yasin Y. Dhaher, Chandramouli Krishnan, 2014, Brain Stimulation.

The effect of involuntary motor activity on myoelectric pattern recognition: a case study with chronic stroke patients

W. Rymer, Guanglin Li, P. Zhou, 2013, Journal of neural engineering.

Power spectral analysis of surface electromyography (EMG) at matched contraction levels of the first dorsal interosseous muscle in stroke survivors

Xun Niu, Ping Zhou, William Zev Rymer, 2014, Clinical Neurophysiology.

Factors governing the form of the relation between muscle force and the EMG: a simulation study.

Ping Zhou, William Zev Rymer, W. Rymer, 2004, Journal of neurophysiology.

motoneuron discharge patterns: a simulation study Contribution of intrinsic properties and synaptic inputs to

Sherif M. Elbasiouny, W. Rymer, C. Heckman, 2013 .

Elbow impedance during goal-directed movements

W. Zev Rymer, W. Rymer, J. Hidler, 2003, Experimental Brain Research.

Origins of abnormal excitability in biceps brachii motoneurons of spastic-paretic stroke survivors.

William Z Rymer, Nina L Suresh, W. Rymer, 2009, Journal of neurophysiology.

Damping in reflexively active and areflexive lengthening muscle evaluated with inertial loads.

W. Rymer, D. C. Lin, 1998, Journal of neurophysiology.

Damping actions of the neuromuscular system with inertial loads: soleus muscle of the decerebrate cat.

W Z Rymer, W. Rymer, D. C. Lin, 2000, Journal of neurophysiology.

Evidence for altered upper extremity muscle synergies in chronic stroke survivors with mild and moderate impairment

Jinsook Roh, William Z. Rymer, Randall F. Beer, 2015, Front. Hum. Neurosci..

chronic stroke survivors Alterations in upper limb muscle synergy structure in

W. Rymer, E. Perreault, R. Beer, 2013 .

Wipe and flexion withdrawal reflexes display different EMG patterns prior to movement onset in the spinalized frog

W. Rymer, W. Lee, J. Schotland, 2004, Experimental Brain Research.

Wipe and flexion reflexes of the frog. I. Kinematics and EMG patterns.

W. Rymer, J. Schotland, 1993, Journal of neurophysiology.

Target-dependent differences between free and constrained arm movements in chronic hemiparesis

W. Rymer, J. Dewald, R. Beer, 2004, Experimental Brain Research.

Compensatory Reaching Strategies After Stroke Saturated Muscle Activation Contributes to

W. Rymer, M. Levin, J. Eng, 2015 .

Delays in grip initiation and termination in persons with stroke: effects of arm support and active muscle stretch exercise.

William Z Rymer, Na Jin Seo, Derek G Kamper, 2009, Journal of neurophysiology.

Afferent mechanisms for the reflex response to imposed ankle movement in chronic spinal cord injury

W. Rymer, B. Schmit, E. N. Benz, 2002, Experimental Brain Research.

Natural history of neuromuscular properties after stroke: a longitudinal study

W Z Rymer, W. Rymer, M. Mirbagheri, 2008, Journal of Neurology, Neurosurgery & Psychiatry.

Neuromuscular abnormalities associated with spasticity of upper extremity muscles in hemiparetic stroke.

W Z Rymer, W. Rymer, M. Mirbagheri, 2007, Journal of neurophysiology.

Finger-thumb coupling contributes to exaggerated thumb flexion in stroke survivors.

Joseph D. Towles, W. Rymer, D. Kamper, 2014, Journal of neurophysiology.

Joint dependent passive stiffness in paretic and contralateral limbs of spastic patients with hemiparetic stroke.

W Z Rymer, J P Dewald, W. Rymer, 1995, Journal of neurology, neurosurgery, and psychiatry.

Use of Lower-Limb Robotics to Enhance Practice and Participation in Individuals With Neurological Conditions

Arun Jayaraman, William Zev Rymer, W. Rymer, 2017, Pediatric physical therapy : the official publication of the Section on Pediatrics of the American Physical Therapy Association.

The hyper-reinnervation of rat skeletal muscle

Todd A. Kuiken, Dudley S. Childress, W. Zev Rymer, 1995, Brain Research.

Hyperactive tendon reflexes in spastic multiple sclerosis: measures and mechanisms of action.

W Z Rymer, W. Rymer, D. Xu, 2000, Archives of physical medicine and rehabilitation.

Muscle fatigue increases beta-band coherence between the firing times of simultaneously active motor units in the first dorsal interosseous muscle.

W. Rymer, M. Lowery, N. L. Suresh, 2016, Journal of neurophysiology.

A comparison of the effects of imposed extension and flexion movements on Parkinsonian rigidity

W. Z. Rymer, W. Rymer, S. Puumala, 2006, Clinical Neurophysiology.

Static and dynamic changes in body orientation modulate spinal reflex excitability in humans

William Zev Rymer, Maria Knikou, W. Rymer, 2003, Experimental Brain Research.

Effects of changing wrist positions on finger flexor hypertonia in stroke survivors

W. Rymer, D. Kamper, Sheng Li, 2006, Muscle & nerve.

Modulation of stretch reflexes of the finger flexors by sensory feedback from the proximal upper limb poststroke.

W. Rymer, D. Kamper, B. Schmit, 2009, Journal of neurophysiology.

Absence of stretch reflex gain enhancement in voluntarily activated spastic muscle

William Z. Rymer, Wynne A. Lee, W. Rymer, 1987, Experimental Neurology.

Quantitative relations between hypertonia and stretch reflex threshold in spastic hemiparesis

W Z Rymer, R K Powers, W. Rymer, 1988, Annals of neurology.

Evidence of shared, direct input to motoneurons supplying synergist muscles in humans

W. Z. Rymer, W. Rymer, R. Powers, 1989, Neuroscience Letters.

Use of visual force feedback to improve digit force direction during pinch grip in persons with stroke: a pilot study.

William Z Rymer, Na Jin Seo, Derek G Kamper, 2011, Archives of physical medicine and rehabilitation.

Relation to Grasp Performance After Stroke Recovery of Thumb and Finger Extension and Its

Joseph D. Towles, W. Rymer, D. Kamper, 2015 .

Contractionsof Motoneurons in Voluntary Isometric Relationship Between Firing Rate and Recruitment

Serge H. Roy, W. Rymer, R. Enoka, 2015 .

Myoelectric computer interfaces to reduce co-contraction after stroke

Marc W. Slutzky, Zachary A. Wright, W. Zev Rymer, 2012, 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Activation deficit correlates with weakness in chronic stroke: Evidence from evoked and voluntary EMG recordings

Ping Zhou, Sheng Li, W. Zev Rymer, 2014, Clinical Neurophysiology.

A simulation study of reflex instability in spasticity: origins of clonus.

W Z Rymer, W. Rymer, J. Hidler, 1999, IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society.

tability in spastic subjects : a simulation study and

W. Rymer, J. Hidler, 2001 .

Effects of motoneuron properties on reflex stability in spastic subjects: a simulation study

W. Rymer, J. Hidler, 2001, 2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Clonus in spastic subjects: a stable limit cycle?

W. Rymer, J. Hidler, 2000, Proceedings of the 22nd Annual International Conference of the IEEE Engineering in Medicine and Biology Society (Cat. No.00CH37143).

Origins of spontaneous firing of motor units in the spastic-paretic biceps brachii muscle of stroke survivors.

W Z Rymer, W. Rymer, C. Mottram, 2010, Journal of neurophysiology.

The Effects of Selective Muscle Weakness on Muscle Coordination in the Human Arm

W. Rymer, Jinsook Roh, R. Beer, 2018, Applied bionics and biomechanics.

Editorial: Surface Electromyography: Barriers Limiting Widespread Use of sEMG in Clinical Assessment and Neurorehabilitation

W. Rymer, R. Merletti, C. Disselhorst-Klug, 2021, Frontiers in Neurology.

Challenges in Measurement of Spasticity in Neurological Disorders

W. Rymer, P. Maciejasz, J. McCamley, 2014 .

Using Robotic Exoskeletons for Over-Ground Locomotor Training

W. Rymer, A. Jayaraman, Sheila Burt, 2016 .

Learning new gait patterns: Exploratory muscle activity during motor learning is not predicted by motor modules.

Rajiv Ranganathan, Chandramouli Krishnan, Yasin Y. Dhaher, 2016, Journal of biomechanics.

Impairment of muscle force transmission in spastic-paretic muscles of stroke survivors

William Zev Rymer, Xiaogang Hu, Babak Afsharipour, 2016, EMBC.

Identification of a Continuous-Time Nonlinear Delay Dynamic System and Its Application to Neuromuscular Reflexes

W. Rymer, Li-Qun Zhang, 1994 .

Simultaneous characterizations of reflex and nonreflex dynamic and static changes in spastic hemiparesis.

W. Rymer, E. Roth, Li-Qun Zhang, 2013, Journal of neurophysiology.

Repeated adaptation and de-adaptation to the pelvis resistance force facilitate retention of motor learning in stroke survivors.

W. Rymer, E. Roth, Ming Wu, 2022, Journal of neurophysiology.

Rehabilitation Technologies for Spinal Injury

W. Rymer, V. Dietz, Anusha Venkatakrishnan, 2016 .

Relative contribution of different altered motor unit control to muscle weakness in stroke: a simulation study

W. Rymer, N. L. Suresh, Xiaogang Hu, 2018, Journal of neural engineering.

Precise quantification of the time course of voluntary activation capacity following Botulinum toxin injections in the biceps brachii muscles of chronic stroke survivors

W. Rymer, N. L. Suresh, B. Afsharipour, 2020, Journal of NeuroEngineering and Rehabilitation.

Anomalies of motor unit amplitude and territory after botulinum toxin injection

W. Rymer, A. Holobar, N. L. Suresh, 2022, Journal of neural engineering.

Reflex mechanisms for motor impairment in spinal cord injury.

W. Rymer, B. Schmit, E. N. Benz, 2002, Advances in experimental medicine and biology.

Analysis of surface EMG-force relation of the first dorsal interosseous muscle

W. Rymer, P. Zhou, N. L. Suresh, 2009, 2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Representations of Motor Synergy and Sequence Learning Bihemispheric Transcranial Direct Current Stimulation Enhances Effector-Independent

Joseph D. Towles, J. Krakauer, W. Rymer, 2015 .

Organization of the motor‐unit pool for different directions of isometric contraction of the first dorsal interosseous muscle

W. Rymer, N. L. Suresh, Xiaogang Hu, 2018, Muscle & nerve.

Population recordings of human motor units often display 'onion skin' discharge patterns -- implications for voluntary motor control

W. Rymer, G. Pearcey, G. E. Pearcey, 2022, 2208.11783.

Contribution of stroke-related changes in neuromuscular factors to gear ratio during isometric contraction of medial gastrocnemius muscle: A simulation study.

W. Rymer, Jongsang Son, 2022, Clinical biomechanics.

Characterization of Differences in the Time Course of Reflex and Voluntary Responses Following Botulinum Toxin Injections in Chronic Stroke Survivors

W. Rymer, N. L. Suresh, B. Afsharipour, 2020, IEEE transactions on neural systems and rehabilitation engineering.

Development of a Planar Haptic Robot With Minimized Impedance

Junho Choi, William Zev Rymer, Seunghan Park, 2020, IEEE Transactions on Biomedical Engineering.

Alterations in motor modules and their contribution to limitations in force control in the upper extremity after stroke

Sang Wook Lee, W. Rymer, Jinsook Roh, 2022, Frontiers in Human Neuroscience.

Predication of motor recovery using kinematic and kinetic measures

W. Rymer, M. Mirbagheri, 2011, 2011 5th International IEEE/EMBS Conference on Neural Engineering.

Recovery of Arm Movement After Stroke

W. Rymer, M. Mirbagheri, 2007, 2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Changes in shoulder torque timing and direction during withdrawal reflexes in the impaired upper limb of hemiparetic stroke subjects

W. Rymer, J. Dewald, R. Beer, 1996, Proceedings of 18th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Brief exposure to systemic hypoxia enhances plasticity of the central nervous system in spinal cord injured animals and man

W. Rymer, M. Sandhu, 2021, Current opinion in neurology.

Mild to Moderate Sleep Apnea is Linked to Hypoxia-induced Motor Recovery After Spinal Cord Injury.

W. Rymer, R. Trumbower, A. Jayaraman, 2020, American journal of respiratory and critical care medicine.

Prednisolone Pretreatment Enhances Intermittent Hypoxia-Induced Plasticity in Persons With Chronic Incomplete Spinal Cord Injury

W. Rymer, A. Jayaraman, M. Kocherginsky, 2019, Neurorehabilitation and neural repair.

Shear Waves Reveal Viscoelastic Changes in Skeletal Muscles After Hemispheric Stroke

Sabrina S. M. Lee, Allison B. Wang, W. Rymer, 2018, IEEE Transactions on Neural Systems and Rehabilitation Engineering.

Increased inhibitory effects on close synergists during muscle fatigue in the decerebrate cat

W. Z. Rymer, W. Rymer, L. Hayward, 1988, Brain Research.

Acute intermittent hypoxia enhances volitional elbow strength, and modulates spatial distribution of muscle activation patterns in persons with chronic incomplete spinal cord injury

W. Rymer, G. Pearcey, B. Afsharipour, 2022, medRxiv.

Conference report on contractures in musculoskeletal and neurological conditions

Sabrina S. M. Lee, W. Rymer, Y. Hathout, 2020, Muscle & nerve.

Exposure to Acute Intermittent Hypoxia Augments Somatic Motor Function in Humans With Incomplete Spinal Cord Injury

W. Rymer, R. Trumbower, A. Jayaraman, 2011, Neurorehabilitation and neural repair.

Anodal transcutaneous DC stimulation enhances learning of dynamic balance control during walking in humans with spinal cord injury

W. Rymer, Ming Wu, Jui-Te Lin, 2022, Experimental Brain Research.

Predication of reflex recovery after stroke using quantitative assessments of motor impairment at 1 month

W. Rymer, M. Mirbagheri, 2009, 2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Swing-phase pelvis perturbation improves dynamic lateral balance during walking in individuals with spinal cord injury

W. Rymer, Ming Wu, Jui-Te Lin, 2022, Experimental Brain Research.

Daily intermittent hypoxia enhances walking after chronic spinal cord injury

Arun Jayaraman, William Z. Rymer, Randy D. Trumbower, 2013, Neurology.

Application of the ${\rm F}$-Response for Estimating Motor Unit Number and Amplitude Distribution in Hand Muscles of Stroke Survivors

W. Rymer, P. Zhou, Xiaoyan Li, 2016, IEEE Transactions on Neural Systems and Rehabilitation Engineering.

Reflex muscle contractions can be elicited by valgus positional perturbations of the human knee.

W. Rymer, Y. Dhaher, A. Tsoumanis, 2003, Journal of biomechanics.

Abnormal corticomotor excitability assessed in biceps brachii preceding pronator contraction post-stroke

W. Rymer, J. Stinear, Tatyana Gerachshenko, 2008, Clinical Neurophysiology.

Long-lasting reductions of spasticity induced by skin electrical stimulation.

W. Rymer, J. Dewald, J. Given, 1996, IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society.

Limit cycle behavior in spasticity: analysis and evaluation

William Zev Rymer, Joseph Hidler, W. Rymer, 2000, IEEE Transactions on Biomedical Engineering.

Extracting Motor Unit Firing Information by Independent Component Analysis of Surface Electromyogram: A Preliminary Study Using a Simulation Approach

Ping Zhou, William Zev Rymer, Madeleine M. Lowery, 2006, Int. J. Comput. Syst. Signals.

Sound-Evoked Biceps Myogenic Potentials Reflect Asymmetric Vestibular Drive to Spastic Muscles in Chronic Hemiparetic Stroke Survivors

W. Rymer, Derek M. Miller, 2017, Front. Hum. Neurosci..

Ascending vestibular drive is asymmetrically distributed to the inferior oblique motoneuron pools in a subset of hemispheric stroke survivors

W. Rymer, J. Baker, Derek M. Miller, 2016, Clinical Neurophysiology.

Asymmetries in vestibular evoked myogenic potentials in chronic stroke survivors with spastic hypertonia: Evidence for a vestibulospinal role

Nina L. Suresh, William Z. Rymer, W. Rymer, 2014, Clinical Neurophysiology.

Effects of muscle fatigue on mechanically sensitive afferents of slow conduction velocity in the cat triceps surae.

W. Rymer, L. Hayward, U. Wesselmann, 1991, Journal of neurophysiology.

Effects of a wearable exoskeleton stride management assist system (SMA®) on spatiotemporal gait characteristics in individuals after stroke: a randomized controlled trial

Arun Jayaraman, William Zev Rymer, Chaithanya K. Mummidisetty, 2015, Journal of NeuroEngineering and Rehabilitation.

Effect of Muscle Biomechanics on the Quantification of Spasticity

W. Z. Rymer, D. G. Kamper, B. D. Schmit, 2001, Annals of Biomedical Engineering.

Nonlinear Spatial Filtering of Multichannel Surface Electromyogram Signals During Low Force Contractions

Ping Zhou, Nina L. Suresh, William Zev Rymer, 2009, IEEE Transactions on Biomedical Engineering.

Current Evidence for Use of Robotic Exoskeletons in Rehabilitation

W. Rymer, A. Jayaraman, Sheila Burt, 2020 .

Accelerometry-enabled measurement of walking performance with a robotic exoskeleton: a pilot study

Konrad P. Kording, Konrad Paul Kording, Arun Jayaraman, 2016, Journal of NeuroEngineering and Rehabilitation.

Selective decrease of small sensory neurons in lumbar dorsal root ganglia labeled with horseradish peroxidase after Nd:YAG laser irradiation of the tibial nerve in the rat

W. Rymer, U. Wesselmann, S.-F. Lin, 1991, Experimental Neurology.

Frequency Response Characteristics of Ankle Plantar Flexors in Humans Following Spinal Cord Injury: Relation to Degree of Spasticity

W. Zev Rymer, Richard L. Harvey, W. Rymer, 2002, Annals of Biomedical Engineering.

Neural Control of Muscle Length and Tension

James C. Houk, W. Zev Rymer, J. Houk, 2011 .

Persistence of motor adaptation during constrained, multi-joint, arm movements.

R A Scheidt, F A Mussa-Ivaldi, M A Conditt, 2000, Journal of neurophysiology.

Enhanced error facilitates motor learning in weight shift and increases use of the paretic leg during walking at chronic stage after stroke

W. Rymer, E. Roth, Ming Wu, 2021, Experimental Brain Research.

EMG-force relation in the first dorsal interosseous muscle of patients with amyotrophic lateral sclerosis.

William Z Rymer, Ping Zhou, Xiaogang Hu, 2014, NeuroRehabilitation.

A New Definition of Poststroke Spasticity and the Interference of Spasticity With Motor Recovery From Acute to Chronic Stages

W. Rymer, G. Francisco, Sheng Li, 2021, Neurorehabilitation and neural repair.

Control of motor unit firing during step-like increases in voluntary force

W. Rymer, Xiaogang Hu, N. Suresh, 2014, Front. Hum. Neurosci..

Motor unit firing rate patterns during voluntary muscle force generation: a simulation study

Xiaogang Hu, W. Rymer, Xiaogang Hu, 2014, Journal of neural engineering.

electromyogramaveraging of the surface Motor unit pool organization examined via

W. Rymer, N. Suresh, 2014 .

Power spectral analysis of surface EMG in stroke: A preliminary study

Aneesha K. Suresh, W. Rymer, Xiaogang Hu, 2013, 2013 6th International IEEE/EMBS Conference on Neural Engineering (NER).

Motor unit pool organization examined via spike-triggered averaging of the surface electromyogram.

William Z Rymer, Xiaogang Hu, Nina L Suresh, 2013, Journal of neurophysiology.

Assessment of validity of a high-yield surface electromyogram decomposition

William Z Rymer, Xiaogang Hu, Nina L Suresh, 2013, Journal of NeuroEngineering and Rehabilitation.

Impaired motor unit control in paretic muscle post stroke assessed using surface electromyography: A preliminary report

Xiaoyan Li, Nina L. Suresh, William Zev Rymer, 2012, 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Suppression of stimulus artifact contaminating electrically evoked electromyography.

William Z Rymer, Ping Zhou, Sheng Li, 2014, NeuroRehabilitation.

Alterations in spike amplitude distribution of the surface electromyogram post-stroke

Xiaoyan Li, Ping Zhou, William Zev Rymer, 2011, 2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Hip angle induced modulation of H reflex amplitude, latency and duration in spinal cord injured humans

W. Rymer, M. Knikou, Maria Knikou, 2002, Clinical Neurophysiology.

Spinal interneurons that receive input from muscle afferents are differentially modulated by dorsolateral descending systems.

W Z Rymer, W. Rymer, C. Heckman, 2001, Journal of neurophysiology.

Effects of laser-induced hyperthermia treatment on ionic permeability of myelinated nerve

W. Rymer, Shien‐Fong Lin, Chau H. Wu, 2007, The Journal of Membrane Biology.

Characteristics of reflex excitation in close Synergist muscles evoked by muscle vibration

W. Rymer, J. Schotland, G. Stuart, 1986, Experimental Brain Research.

Enhancement by serotonin of tonic vibration and stretch reflexes in the decerebrate cat

W. Rymer, J. Carp, 1986, Experimental Brain Research.

Effect of acute intermittent hypoxia on motor function in individuals with chronic spinal cord injury following ibuprofen pretreatment: A pilot study

W. Rymer, L. Duffell, A. Jayaraman, 2017, Journal of Spinal Cord Medicine (JSCM).

Comparison of walking performance over the first 2 minutes and the full 6 minutes of the Six-Minute Walk Test

Richard W. Bohannon, W. Rymer, R. Gershon, 2014, BMC Research Notes.

Prolonged time course for vibratory suppression of stretch reflex in the decerebrate cat

W. Rymer, Z. Hasan, 1981, Experimental Brain Research.

Muscular torque generation during imposed joint rotation: torque-angle relationships when subjects' only goal is to make a constant effort

P R Burgess, W Z Rymer, W. Rymer, 2002, Somatosensory & motor research.

Functional Specialization in the Motor Unit Population of Cat Medial Gastrocnemius Muscle

W. Rymer, R. Burke, J. V. WalshJr., 1973 .

Adult Rats Motoneurons of the Sacrocaudal Spinal Cord of Persistent Sodium Currents and Repetitive Firing in

W. Rymer, C. Heckman, S. Waxman, 2015 .

Robust Muscle Activity Onset Detection Using an Unsupervised Electromyogram Learning Framework

Ping Zhou, Dongwen Ying, William Z. Rymer, 2015, PloS one.

EMG burst presence probability: a joint time-frequency representation of muscle activity and its application to onset detection.

Jie Liu, Dongwen Ying, William Zev Rymer, 2015, Journal of biomechanics.

The relation between Ashworth scores and neuromechanical measurements of spasticity following stroke

William Z Rymer, Mehdi M Mirbagheri, W. Rymer, 2008, Journal of NeuroEngineering and Rehabilitation.

Development of the MACARM - a novel cable robot for upper limb neurorehabilitation

R.F. Beer, B. Bachrach, D. Mayhew, 2005, 9th International Conference on Rehabilitation Robotics, 2005. ICORR 2005..

An Examination of the Motor Unit Number Index (MUNIX) in Muscles Paralyzed by Spinal Cord Injury

Xiaoyan Li, William Zev Rymer, Faezeh Jahanmiri-Nezhad, 2012, IEEE Transactions on Information Technology in Biomedicine.

A Simulation-Based Analysis of Motor Unit Number Index (MUNIX) Technique Using Motoneuron Pool and Surface Electromyogram Models

Ping Zhou, W. Z. Rymer, W. Rymer, 2012, IEEE Transactions on Neural Systems and Rehabilitation Engineering.

Motor Unit Number Reductions in Paretic Muscles of Stroke Survivors

Xiaoyan Li, Ping Zhou, Nina L. Suresh, 2011, IEEE Transactions on Information Technology in Biomedicine.

Reflex reciprocal facilitation of antagonist muscles in spinal cord injury

W. Rymer, R. Xia, 2005, Spinal Cord.

Effects of changes in hip joint angle on H-reflex excitability in humans

W. Rymer, M. Knikou, Maria Knikou, 2002, Experimental Brain Research.

Extraction of Neural Control Commands using Myoelectric Pattern Recognition: a Novel Application in adults with cerebral Palsy

Jie Liu, Xiaoyan Li, Ping Zhou, 2014, Int. J. Neural Syst..

Simple Mechanical Constraint to Single-Joint Arm Movements Studied Using a Control Strategies for the Transition From Multijoint

David J. Reinkensmeyer, Ferdinando A. Mussa-Ivaldi, Robert A. Scheidt, 2015 .

Spasticity: Mechanisms and Management

David Burke, W. Z. Rymer, W. Rymer, 1994 .

Contributions of motor-unit recruitment and rate modulation of compensation for muscle yielding.

W Z Rymer, W. Rymer, P J Cordo, 1982, Journal of neurophysiology.

Loss of variable fascicle gearing during voluntary isometric contractions of paretic medial gastrocnemius muscles in male chronic stroke survivors

W. Rymer, Jongsang Son, 2020, The Journal of physiology.

Limited fascicle shortening and fascicle rotation may be associated with impaired voluntary force-generating capacity in pennate muscles of chronic stroke survivors.

Sabrina S. M. Lee, W. Rymer, Jongsang Son, 2020, Clinical biomechanics.

Effects of Changes in Ankle Joint Angle on the Relation Between Plantarflexion Torque and EMG Magnitude in Major Plantar Flexors of Male Chronic Stroke Survivors

W. Rymer, Jongsang Son, 2020, Frontiers in Neurology.

Examination of Poststroke Alteration in Motor Unit Firing Behavior Using High-Density Surface EMG Decomposition

Xiaoyan Li, Ping Zhou, William Zev Rymer, 2015, IEEE Transactions on Biomedical Engineering.

Variations of Tendon Tap Force Threshold needed to Evoke Surface Electromyogram Responses after Botulinum Toxin Injection in Chronic Stroke Survivors*

Nina L. Suresh, William Z. Rymer, Babak Afsharipour, 2019, 2019 9th International IEEE/EMBS Conference on Neural Engineering (NER).

Longer electromechanical delay in paretic triceps surae muscles during voluntary isometric plantarflexion torque generation in chronic hemispheric stroke survivors.

W. Rymer, Jongsang Son, 2020, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

An evaluation of passive properties of spastic muscles in hemiparetic stroke survivors

Nina L. Suresh, William Z. Rymer, W. Rymer, 2010, 2010 Annual International Conference of the IEEE Engineering in Medicine and Biology.

Stretch reflex excitability in contralateral limbs of stroke survivors is higher than in matched controls

W. Rymer, Taimoor Afzal, M. Chardon, 2019, Journal of NeuroEngineering and Rehabilitation.

Prolonged time course of population excitatory postsynaptic potentials in motoneurons of chronic stroke survivors.

W. Rymer, Xiaogang Hu, Jongsang Son, 2019, Journal of neurophysiology.

A Unifying Pathophysiological Account for Post-stroke Spasticity and Disordered Motor Control

Ping Zhou, Gerard E. Francisco, William Zev Rymer, 2019, Front. Neurol..

Changes of elbow kinematics and kinetics during 1 year after stroke

Mehdi M Mirbagheri, W Zev Rymer, W. Rymer, 2008, Muscle & nerve.

Comparison of Neuromuscular Abnormalities between Upper and Lower Extremities in Hemiparetic Stroke

W. Rymer, M. Mirbagheri, M. Thajchayapong, 2006, 2006 International Conference of the IEEE Engineering in Medicine and Biology Society.

Evolution of Reflexive and Muscular Mechanical Properties in Stroke-Induced Spasticity

W. Rymer, M. Mirbagheri, C. Tsao, 2005, 2005 IEEE Engineering in Medicine and Biology 27th Annual Conference.

Abnormal intrinsic and reflex stiffness related to impaired voluntary movement

W. Rymer, M. Mirbagheri, Cheng-Chi Tsacr, 2004, The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Contributions of motoneuron hyperexcitability to clinical spasticity in hemispheric stroke survivors

W. Rymer, Xiaogang Hu, M. Chardon, 2015, Clinical Neurophysiology.

Quantification of spasticity: identification of reflex and intrinsic mechanical properties

W. Rymer, R. Harvey, D. Chen, 2003, First International IEEE EMBS Conference on Neural Engineering, 2003. Conference Proceedings..

In-Vivo Study of Passive Musculotendon Mechanics in Chronic Hemispheric Stroke Survivors

W. Rymer, Y. Dhaher, M. Chardon, 2020, IEEE Transactions on Neural Systems and Rehabilitation Engineering.

Quantification of the effects of an alpha-2 adrenergic agonist on reflex properties in spinal cord injury using a system identification technique

Mehdi M Mirbagheri, W Zev Rymer, W. Rymer, 2010, Journal of NeuroEngineering and Rehabilitation.

Time-course of changes in arm impairment after stroke: variables predicting motor recovery over 12 months.

Mehdi M Mirbagheri, W Zev Rymer, W. Rymer, 2008, Archives of physical medicine and rehabilitation.

Reorganization of flexion reflexes in the upper extremity of hemiparetic subjects

W Z Rymer, J P Dewald, W. Rymer, 1999, Muscle & nerve.

Therapeutic neural effects of electrical stimulation.

J R Wolpaw, A Stefanovska, C Kantor, 1996, IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society.

Characterizing the complexity of spontaneous motor unit patterns of amyotrophic lateral sclerosis using approximate entropy

Xu Zhang, Ping Zhou, Paul E. Barkhaus, 2011, Journal of neural engineering.

Reflex actions of muscle afferents on fusimotor innervation in decerebrated cats: an assessment of beta contributions

W. Rymer, S. Grill, 1985, Experimental Brain Research.

Motor assessment using the NIH Toolbox

William Z Rymer, Ying-Chih Wang, Richard W. Bohannon, 2013, Neurology.

Finite Element Analysis for Evaluation of Pressure Ulcer on the Buttock: Development and Validation

Dohyung Lim, M. Makhsous, J. Bankard, 2007, IEEE Transactions on Neural Systems and Rehabilitation Engineering.

Modulation in Locomotor Activity-Related Neurons in Cfos-EGFP Mice Multiple Patterns and Components of Persistent Inward Current With Serotonergic

L. Jordan, W. Rymer, M. Gorassini, 2010 .

survivors prevalent in muscles of spastic-paretic stroke Disturbances of motor unit rate modulation are

Rosemary A. Lester, W. Rymer, C. Heckman, 2015 .

Biorealistic hand prosthesis with compliance control and noninvasive somatotopic sensory feedback

W. Rymer, N. Lan, C. Niu, 2023, Progress in Biomedical Engineering.

Effects of geometric joint constraints on the selection of final arm posture during reaching: a simulation study

W. Zev Rymer, D. G. Kamper, W. Rymer, 1999, Experimental Brain Research.

Abnormal force--EMG relations in paretic limbs of hemiparetic human subjects.

W Z Rymer, W. Rymer, A Tang, 1981, Journal of neurology, neurosurgery, and psychiatry.

Interdisciplinary Concepts for Design and Implementation of Mixed Reality Interactive Neurorehabilitation Systems for Stroke

Todd Ingalls, Pavan Turaga, Thanassis Rikakis, 2014, Physical Therapy.

Altered digit force direction during pinch grip following stroke

Derek G. Kamper, Na Jin Seo, William Z. Rymer, 2010, Experimental Brain Research.

Stride management assist exoskeleton vs functional gait training in stroke

William Z Rymer, Sangeetha Madhavan, Arun Jayaraman, 2018, Neurology.

Robustness of muscle synergies underlying three-dimensional force generation at the hand in healthy humans.

William Z Rymer, Jinsook Roh, Randall F Beer, 2012, Journal of neurophysiology.

Characteristic Variation of Electromechanical Delay After the Botulinum Toxin Injection in Spastic Biceps Brachii Muscles

W. Rymer, B. Afsharipour, S. Chandra, 2022, Frontiers in Neurology.

Surface electromyogram analysis of the direction of isometric torque generation by the first dorsal interosseous muscle

Ping Zhou, William Zev Rymer, Nina L Suresh, 2011, Journal of neural engineering.

Decomposition of High Density Electromyogram Reveals Changes in Motor Unit Action Potential Amplitude After Intramuscular Botulinum Toxin

W. Rymer, A. Holobar, B. Afsharipour, 2020 .

The movement-specific effect of motor imagery on the premotor time.

W. Rymer, D. Kamper, Sheng Li, 2005, Motor control.

eakness Is the Primary Contributor to Finger Impairment in hronic Stroke

E. G. Cruz, W. Rymer, E. Cruz, 2006 .

Forced Use of the Paretic Leg Induced by a Constraint Force Applied to the Nonparetic Leg in Individuals Poststroke During Walking

W. Rymer, E. Roth, Ming Wu, 2017, Neurorehabilitation and neural repair.

Differentiation between the contributions of shortening reaction and stretch-induced inhibition to rigidity in Parkinson’s disease

A. Joseph Threlkeld, W. Rymer, N. Hanson, 2011, Experimental Brain Research.

Effects of a wearable exoskeleton stride management assist system (SMA®) on spatiotemporal gait characteristics in individuals after stroke: a randomized controlled trial

Kenton J. Williams, W. Rymer, C. Mummidisetty, 2015, Journal of NeuroEngineering and Rehabilitation.

Development of a Remote Version of the Graded Redefined Assessment of Strength, Sensation, and Prehension (GRASSP): Validity and Reliability

Alexander J Barry, W. Rymer, G. Forrest, 2023, Neurorehabilitation and neural repair.

Effect of age and osteoarthritis on knee proprioception.

Y. Pai, W. Rymer, L. Sharma, 1997, Arthritis and rheumatism.

Performance Evaluation of a Wearable Tattoo Electrode Suitable for High-Resolution Surface Electromyogram Recording

John A Rogers, William Zev Rymer, Zhaoqian Xie, 2020, IEEE Transactions on Biomedical Engineering.

Restoration of extensor excitability in the acute spinal cat by the 5-HT2 agonist DOI.

W. Rymer, C. Heckman, R. H. Lee, 1996, Journal of neurophysiology.

Acute intermittent hypoxia boosts spinal plasticity in humans with tetraplegia

W. Rymer, R. Trumbower, M. Oudega, 2020, Experimental Neurology.

System identification of tendon reflex dynamics.

W Z Rymer, W. Rymer, L. Zhang, 1999, IEEE transactions on rehabilitation engineering : a publication of the IEEE Engineering in Medicine and Biology Society.

Changes in motor unit behavior following isometric fatigue of the first dorsal interosseous muscle.

William Z Rymer, Xiaogang Hu, Lara McManus, 2015, Journal of neurophysiology.

Alterations in the Peak Amplitude Distribution of the Surface Electromyogram Poststroke

Xiaoyan Li, Ping Zhou, William Zev Rymer, 2013, IEEE Transactions on Biomedical Engineering.

Examination of motor unit control properties in stroke survivors using surface EMG decomposition: A preliminary report

Xiaoyan Li, Ping Zhou, Nina L. Suresh, 2011, 2011 Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

fatigue of the first dorsal interosseous muscle Changes in motor unit behavior following isometric

W. Rymer, M. Lowery, Xiaogang Hu, 2015 .

Multi-Joint, Arm Movements Persistence of Motor Adaptation During Constrained,

David J. Reinkensmeyer, Reza Shadmehr, John W. Krakauer, 2015 .

Three-Dimensional Innervation Zone Imaging from Multi-Channel Surface EMG Recordings

Yingchun Zhang, Ping Zhou, Sheng Li, 2015, Int. J. Neural Syst..

Extraction of individual muscle mechanical action from endpoint force.

William Z Rymer, Jason J Kutch, Arthur D Kuo, 2010, Journal of neurophysiology.

Analysis of the effects of firing rate and synchronization on spike-triggered averaging of multidirectional motor unit torque

Jason J. Kutch, Nina L. Suresh, Anthony M. Bloch, 2007, Journal of Computational Neuroscience.

Than Synergistic Patterns of Muscle Cooperation Endpoint Force Fluctuations Reveal Flexible Rather

Cristina P. Santos, Diego Torricelli, Juan C. Moreno, 2015 .

Lack of hypertonia in thumb muscles after stroke.

William Z Rymer, Joseph D. Towles, Derek G Kamper, 2010, Journal of neurophysiology.

Reflex and intrinsic changes induced by fatigue of human elbow extensor muscles.

W Z Rymer, W. Rymer, L. Zhang, 2001, Journal of neurophysiology.

Is knee joint proprioception worse in the arthritic knee versus the unaffected knee in unilateral knee osteoarthritis?

Y. Pai, W. Rymer, L. Sharma, 1997, Arthritis and rheumatism.

Effects of mechanical vibration of the foot sole and ankle tendons on cutaneomuscular responses in man

W. Rymer, M. Knikou, C. Mummidisetty, 2013, Neuroscience Letters.

Spike sorting paradigm for classification of multi-channel recorded fasciculation potentials

William Zev Rymer, Faezeh Jahanmiri-Nezhad, Paul E. Barkhaus, 2014, Comput. Biol. Medicine.

Machine Learning for Supporting Diagnosis of Amyotrophic Lateral Sclerosis Using Surface Electromyogram

Ping Zhou, William Zev Rymer, Paul E. Barkhaus, 2014, IEEE Transactions on Neural Systems and Rehabilitation Engineering.

Short-term Maximal-Intensity Resistance Training Increases Volitional Function and Strength in Chronic Incomplete Spinal Cord Injury: A Pilot Study

W. Rymer, A. Jayaraman, T. Hornby, 2013, Journal of neurologic physical therapy : JNPT.

Control strategies for the transition from multijoint to single-joint arm movements studied using a simple mechanical constraint.

R A Scheidt, W Z Rymer, W. Rymer, 2000, Journal of neurophysiology.

Investigation of Soft-Tissue Stiffness Alteration in Denervated Human Tissue Using an Ultrasound Indentation System

William Z Rymer, Yagna Pathak, Mohsen Makhsous, 2008, The journal of spinal cord medicine.

The speed of adaptation is dependent on the load type during target reaching by intact human subjects

W. Rymer, Keonyoung Oh, Junho Choi, 2021, Experimental Brain Research.

Inertial Loads: Human Flexor Pollicis Longus Muscle Damping Actions of the Neuromuscular System With

W. Rymer, J. Lackner, P. DiZio, 2015 .

Human Elbow Extensor Muscles Reflex and Intrinsic Changes Induced by Fatigue of

N. Hogan, W. Rymer, H. Krebs, 2015 .

Effects of CO2 and HeNe laser radiation on rat sciatic nerve in vitro

William Z Rymer, Simon Arber, Djordje Boskov, 1990, Photonics West - Lasers and Applications in Science and Engineering.

Alterations in motoneuron properties induced by acute dorsal spinal hemisection in the decerebrate cat

W. Z. Rymer, W. Rymer, J. Carp, 2004, Experimental Brain Research.

Reducing robotic guidance during robot-assisted gait training improves gait function: a case report on a stroke survivor.

William Z Rymer, Chandramouli Krishnan, Yasin Y Dhaher, 2013, Archives of physical medicine and rehabilitation.

Increased motor variability facilitates motor learning in weight shift toward the paretic side during walking in individuals post‐stroke

W. Rymer, E. Roth, Ming Wu, 2021, The European journal of neuroscience.

Applying a pelvic corrective force induces forced use of the paretic leg and improves paretic leg EMG activities of individuals post-stroke during treadmill walking

Rongnian Tang, Ming Wu, Janis Kim, 2017, Clinical Neurophysiology.

Efficacy and time course of acute intermittent hypoxia effects in the upper extremities of people with cervical spinal cord injury

W. Rymer, M. Oudega, G. Mitchell, 2021, Experimental Neurology.

The effects of notch filtering on electrically evoked myoelectric signals and associated motor unit index estimates

Guanglin Li, William Z Rymer, Ping Zhou, 2011, Journal of NeuroEngineering and Rehabilitation.

Computing motor unit number index of the first dorsal interosseous muscle with two different contraction tasks.

Ping Zhou, W. Rymer, P. Zhou, 2012, Medical engineering & physics.

Relative strength of synaptic input from short-latency pathways to motor units of defined type in cat medial gastrocnemius.

W Z Rymer, R E Burke, W. Rymer, 1976, Journal of neurophysiology.

The role of shortening reaction in mediating rigidity in Parkinson’s disease

W. Rymer, R. Xia, 2004, Experimental Brain Research.

Voluntary breathing influences corticospinal excitability of nonrespiratory finger muscles.

Sheng Li, William Zev Rymer, W. Rymer, 2011, Journal of neurophysiology.

Excitability of Nonrespiratory Finger Muscles Voluntary Breathing Influences Corticospinal

W. Rymer, 2011 .

Riluzole decreases flexion withdrawal reflex but not voluntary ankle torque in human chronic spinal cord injury.

W. Rymer, B. Schmit, T. Hornby, 2011, Journal of neurophysiology.

Changes in voluntary torque and electromyographic activity following oral baclofen

W. Rymer, C. Heckman, R. Harvey, 2004, Muscle & nerve.

Eunice Kennedy Shriver National Institute of Child Health and Human Development Scientific Vision Workshop on Diagnostics and Therapeutics

A. James Barkovich, Stanley J. Szefler, W. Rymer, 2011 .

Model Based Sensitivity Analysis of EMG–Force Relation with Respect to Motor Unit Properties: Applications to Muscle Paresis in Stroke

Ping Zhou, Nina L. Suresh, William Z. Rymer, 2007, Annals of Biomedical Engineering.

Anomalous EMG–force relations during low-force isometric tasks in hemiparetic stroke survivors

W. Rymer, Nicole S. Concepcion, N. Suresh, 2014, Experimental Brain Research.

Soleus H-reflex excitability changes in response to sinusoidal hip stretches in the injured human spinal cord

W. Rymer, M. Knikou, B. Schmit, 2007, Neuroscience Letters.

Flexor reflexes in chronic spinal cord injury triggered by imposed ankle rotation

W. Rymer, B. Schmit, A. McKenna-Cole, 2000, Muscle & nerve.

The effects of Robotic-Assisted Locomotor training on spasticity and volitional control

W. Rymer, M. Mirbagheri, L. Ness, 2011, 2011 IEEE International Conference on Rehabilitation Robotics.

Impairment of muscle force transmission in spastic-paretic muscles of stroke survivors

W. Rymer, Xiaogang Hu, B. Afsharipour, 2016, 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC).

Disturbances of motor output in a cat hindlimb muscle after acute dorsal spinal hemisection

W. Z. Rymer, W. Rymer, R. Powers, 2004, Experimental Brain Research.

Windup of flexion reflexes in chronic human spinal cord injury: a marker for neuronal plateau potentials?

W. Rymer, B. Schmit, T. Hornby, 2003, Journal of neurophysiology.

Altered nerve excitability properties after stroke are potentially associated with reduced neuromuscular activation

W. Rymer, C. Klein, M. Fisher, 2020, Clinical Neurophysiology.

Neuromuscular reflexes contribute to knee stiffness during valgus loading.

W Z Rymer, W. Rymer, Y. Dhaher, 2005, Journal of neurophysiology.

Neuromuscular Reflexes Contribute to Knee Stiffness

W. Rymer, M. Faist, A. Gollhofer, 2015 .

Effect of a serotonin antagonist on delay in grip muscle relaxation for persons with chronic hemiparetic stroke

W. Rymer, D. Kamper, N. J. Seo, 2011, Clinical Neurophysiology.

injuryankle torque in human chronic spinal cord Riluzole decreases flexion withdrawal reflex but not

W. Rymer, R. Trumbower, A. Jayaraman, 2015 .

Motor unit innervation zone localization based on robust linear regression analysis

William Zev Rymer, Jie Liu, Faezeh Jahanmiri-Nezhad, 2019, Comput. Biol. Medicine.

Using surface electromyography to detect changes in innervation zones pattern after human cervical spinal cord injury

Ghulam Rasool, Nina L. Suresh, William Zev Rymer, 2016, 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC).

Mechanical properties of cat soleus muscle elicited by sequential ramp stretches: implications for control of muscle.

W. Rymer, D. C. Lin, 1993, Journal of neurophysiology.

Muscular weakness in incomplete spinal cord injury.

W. Rymer, R. Powers, 1987, Comprehensive therapy.

Muscle material properties in passive and active stroke-impaired muscle.

Sabrina S. M. Lee, Kristen L. Jakubowski, W. Rymer, 2019, Journal of biomechanics.

Pulsed laser radiation effects on the distribution of conduction velocities in sciatic nerve of the rat

William Z Rymer, Shien-Fong Lin, Ursula Wesselmann, 1990, Photonics West - Lasers and Applications in Science and Engineering.

Changes in motoneuron afterhyperpolarization duration in stroke survivors.

Xiaogang Hu, Aneesha K. Suresh, William Zev Rymer, 2014, Journal of neurophysiology.

Motor unit structural change post stroke examined via surface electromyography: A preliminary report

Aneesha K. Suresh, W. Rymer, Xiaogang Hu, 2013, 2013 6th International IEEE/EMBS Conference on Neural Engineering (NER).

Examination of afterhyperpolarization duration changes in motoneurons innervating paretic muscles in stroke survivors

William Zev Rymer, Xiaogang Hu, Aneesha K. Suresh, 2012, 2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

A preliminary study of action potential propagation in paretic muscle of stroke survivors

W. Rymer, P. Zhou, N. Suresh, 2009, 2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Alterations in Motor Unit Firing Rate and Action Potential Properties during Isometric Fatigue in Stroke Survivors

W. Rymer, M. Lowery, Xiaogang Hu, 2016 .

Differences between steady-state and transient post-synaptic potentials elicited by stimulation of the sural nerve

W. Rymer, C. Heckman, M. Munson, 1992, Experimental Brain Research.

Precise quantification of the time course of voluntary activation capacity following Botulinum toxin injections in the biceps brachii muscles of chronic stroke survivors

W. Rymer, B. Afsharipour, S. Chandra, 2020, Journal of NeuroEngineering and Rehabilitation.

Altered Motor Unit Territories After Intramuscular Botulinum Toxin Injection in Spastic Biceps Brachii Muscle

W. Rymer, A. Holobar, B. Afsharipour, 2020, Biosystems & Biorobotics.

healthy humans three-dimensional force generation at the hand in Robustness of muscle synergies underlying

Katherine M. Steele, Motoki Kouzaki, Matthew C. Tresch, 2012 .

TITLE: Acute intermittent hypoxia enhances volitional elbow strength, and modulates spatial distribution of muscle activation patterns in persons with chronic incomplete spinal cord injury

W. Rymer, G. Pearcey, B. Afsharipour, 2022 .

Effect of reversible dorsal cold block on the persistence of inhibition generated by spinal reflexes

W. Rymer, C. Heckman, B. Jiang, 1995, Experimental Brain Research.

Altered Motor Unit Discharge Coherence in Paretic Muscles of Stroke Survivors

Chenyun Dai, Nina L. Suresh, Xiaogang Hu, 2017, Front. Neurol..

Gradual adaptation to pelvis perturbation during walking reinforces motor learning of weight shift toward the paretic side in individuals post-stroke

W. Rymer, E. Roth, Ming Wu, 2021, Experimental Brain Research.

Statistics of inter-spike intervals as a routine measure of accuracy in automatic decomposition of surface electromyogram

Nina L. Suresh, William Zev Rymer, Xiaogang Hu, 2014, 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Robot-assisted reaching exercise promotes arm movement recovery in chronic hemiparetic stroke: a randomized controlled pilot study

W. Rymer, D. Reinkensmeyer, L. Kahn, 2006, Journal of NeuroEngineering and Rehabilitation.

Periarticular reflexes contribute to joint stiffness during valgus loading at the knee

W. Rymer, Y. Dhaher, A. Tsoumanis, 2003, Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE Cat. No.03CH37439).

Enhanced phasic sensory afferents paired with controlled constraint force improve weight shift toward the paretic side in individuals post-stroke.

W. Rymer, E. Roth, Ming Wu, 2023, Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association.

Response to “Training and Retention of Rehabilitation Researchers”

W. Rymer, 2005, American Journal of Physical Medicine & Rehabilitation.

Currents in Rat Motoneurons Currents (SK) Are Activated by Persistent Calcium Apamin-Sensitive Calcium-Activated Potassium

Sherif M. Elbasiouny, W. Rymer, M. Gorassini, 2015 .

Potentials?Injury: A Marker for Neuronal Plateau Windup of Flexion Reflexes in Chronic Human Spinal

W. Rymer, C. Heckman, A. Frigon, 2015 .

Asymmetries in vestibular evoked myogenic potentials in chronic stroke survivors with spastic hypertonia: Evidence for a vestibulospinal role

W. Rymer, C. Klein, Derek M. Miller, 2014, Clinical Neurophysiology.

Estimating the time course of population excitatory postsynaptic potentials in motoneurons of spastic stroke survivors.

W. Rymer, Xiaogang Hu, N. Suresh, 2015, Journal of Neurophysiology.

survivorspotentials in motoneurons of spastic stroke Estimating the time course of population excitatory

W. Rymer, N. Suresh, 2016 .

ORIGINAL CONTRIBUTION Investigation of Soft-Tissue Stiffness Alteration in Denervated Human Tissue Using an Ultrasound Indentation System

W. Rymer, M. Makhsous, F. Lin, 2008 .

Corticospinal tract integrity correlates with knee extensor weakness in chronic stroke survivors

W. Rymer, A. Jayaraman, J. Stinear, 2011, Clinical Neurophysiology.

Periodically relieving ischial sitting load to decrease the risk of pressure ulcers.

William Z Rymer, Mohsen Makhsous, James Bankard, 2007, Archives of physical medicine and rehabilitation.

Can Robot-Assisted Therapy Promote Generalization of Motor Learning Following Stroke?: Preliminary Results

W.Z. Rymer, D. Reinkensmeyer, H. Fischer, 2006, The First IEEE/RAS-EMBS International Conference on Biomedical Robotics and Biomechatronics, 2006. BioRob 2006..

Targeted Pelvic Constraint Force Induces Enhanced Use of the Paretic Leg During Walking in Persons Post-Stroke

W. Rymer, E. Roth, Ming Wu, 2020, IEEE Transactions on Neural Systems and Rehabilitation Engineering.

Voluntary breathing influences corticospinal excitability of nonrespiratory finger muscles.

W. Rymer, Sheng Li, 2011, Journal of neurophysiology.

of the 23 rd Annual EMBS International Conference , October 25-28 , Istanbul , Turkey ALTERING MOVEMENT PATTERNS IN HEALTHY AND BRAIN-INJURED SUBJECTS VIA CUSTOM DESIGNED ROBOTIC FORCES

W.Z. Rymer, F.A. Mussa-Ivaldi, J.L. Patton, 2004 .

Reflex responses to ligament loading: implications for knee joint stability

W. Rymer, Y. Dhaher, A. Tsoumanis, 2001, 2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Diminished capacity to modulate motor activation patterns according to task contributes to thumb deficits following stroke.

William Z Rymer, Joseph D. Towles, Derek G Kamper, 2011, Journal of neurophysiology.

deficits following stroke patterns according to task contributes to thumb Diminished capacity to modulate motor activation

Derek G. Kamper, Joseph D. Towles, Heidi C. Fischer, 2014 .

Factors Governing the Form of the Relation Between Muscle Force and the Electromyogram ( EMG ) : A Simulation Study

Ping Zhou, William Zev Rymer, W. Rymer, 2004 .

Disturbances of Motoneurone Discharge in Muscles of Subjects with Hemiparetic Stroke

W. Rymer, J. Gemperline, 1995 .

Multidirectional Reaching in the Horizontal Plane Describing Muscular Activation Patterns During Identifying Representative Synergy Matrices for

Motoki Kouzaki, Silvia Muceli, Dario Farina, 2015 .

Immediate Adaptations to Post-Stroke Walking Performance Using a Wearable Robotic Exoskeleton.

Sangeetha Madhavan, Arun Jayaraman, Megan K. O’Brien, 2019, Archives of physical medicine and rehabilitation.

A practice of caution: spontaneous action potentials or artifactual spikes?

W. Rymer, P. Zhou, Xiaoyan Li, 2015, Journal of NeuroEngineering and Rehabilitation.

Sensitivity of fasciculation potential detection is dramatically reduced by spatial filtering of surface electromyography

W. Rymer, P. Zhou, Faezeh Jahanmiri-Nezhad, 2014, Clinical Neurophysiology.

A Clinically Applicable Approach for Detecting Spontaneous Action Potential Spikes in Amyotrophic Lateral Sclerosis With a Linear Electrode Array

W. Rymer, P. Zhou, Xiaoyan Li, 2014, Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society.

Alterations in upper limb muscle synergy structure in chronic stroke survivors.

W. Rymer, Jinsook Roh, E. Perreault, 2013, Journal of neurophysiology.

Use of Pelvic Corrective Force With Visual Feedback Improves Paretic Leg Muscle Activities and Gait Performance After Stroke

W. Rymer, E. Roth, Ming Wu, 2019, IEEE Transactions on Neural Systems and Rehabilitation Engineering.

Effects of changes in hip joint angle on H-reflex excitability in humans

William Zev Rymer, Maria Knikou, W. Rymer, 2002, Experimental Brain Research.

Fast local temperature tracking in electrophysiological preparations by means of controlled laser irradiation

Shien-Fong Lin, William Z. Rymer, W. Rymer, 1992, Photonics West - Lasers and Applications in Science and Engineering.

Persistence of motor adaptation during constrained, multi-joint, arm movements.

W. Rymer, F. Mussa-Ivaldi, D. Reinkensmeyer, 2000, Journal of neurophysiology.

Editorial so where do we go from here

William Z. Rymer, W. Rymer, 2001 .

Ankle Joint Angle Influences Relative Torque Fluctuation during Isometric Plantar Flexion

W. Rymer, Jongsang Son, Fandi Shi, 2023, Bioengineering.

Force-sensitive interneurons in the spinal cord of the cat.

C. L. Cleland, W Z Rymer, W. Rymer, 1982, Science.

Examination of Post-stroke Alteration in Motor Unit Firing Behavior Using High Density Surface EMG Decomposition

W. Rymer, R. Merletti, A. Holobar, 2014 .

Functional roles of fusimotor and skeletofusimotor neurons studied in the decerebrate cat

W. Rymer, F. Edwards, E. M. Post, 1981 .

Motor-unit activation patterns in lengthening and isometric contractions of hindlimb extensor muscles in the decerebrate cat.

W. Rymer, P. Cordo, 1982, Journal of neurophysiology.

Nina L. Suresh, Xiaogang Hu, Madeleine M. Lowery, 2015, 2015 7th International IEEE/EMBS Conference on Neural Engineering (NER).

Mechanomyogram amplitude vs. isometric ankle plantarflexion torque of human medial gastrocnemius muscle at different ankle joint angles.

W. Rymer, Jongsang Son, Fandi Shi, 2021, Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology.

The relation between Ashworth scores and neuromechanical measurements of spasticity following stroke

W. Rymer, M. Mirbagheri, R. Harvey, 2008, Journal of NeuroEngineering and Rehabilitation.

Assisted Movement With Proprioceptive Stimulation Augments Recovery From Moderate-To-Severe Upper Limb Impairment During Subacute Stroke Period: A Randomized Clinical Trial

W. Rymer, P. Cordo, N. Byl, 2022, Neurorehabilitation and neural repair.

EMGextraction of neural strategies from the surface

Madeleine M. Lowery, Nina L. Suresh, Roberto Merletti, 2015 .

Computational methods for improving estimates of motor unit twitch contraction properties

K. Y. Lim, W. Rymer, K. Y. Lim, 1995, Muscle & nerve.

Erratum: Effects of changes in hip joint angle on H-reflex excitability in humans (Exp. Brain Res. (2002) 143 (149-159))

W. Rymer, Maria Knikou, 2002 .

Modeling of muscle mechanical and reflexive properties using nonlinear delay differential equations

William Z Rymer, Li-Qun Zhang, W. Rymer, 1993, Proceedings of the 15th Annual International Conference of the IEEE Engineering in Medicine and Biology Societ.

Identification of reflex and intrinsic mechanical properties in stroke and spinal cord injury

W. Rymer, M. Mirbagheri, R. A. Harvey, 2003, Proceedings of the 25th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (IEEE Cat. No.03CH37439).

Excitatory synaptic potentials in spastic human motoneurons have a short rise‐time

W. Rymer, M. D. Ellis, H. Heckman, 2005, Muscle & nerve.

Spasticity, weakness, force variability, and sustained spontaneous motor unit discharges of resting spastic–paretic biceps brachii muscles in chronic stroke

Ping Zhou, Sheng Li, W. Rymer, 2013, Muscle & nerve.

Altered motor unit discharge patterns in paretic muscles of stroke survivors assessed using surface electromyography

Aneesha K. Suresh, W. Rymer, Xiaogang Hu, 2016, Journal of neural engineering.

A new method for reflex threshold estimation in spastic muscles

W. Rymer, M. Chardon, N. Suresh, 2009, 2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

muscle poststroke Altered contractile properties of the gastrocnemius

W. Rymer, E. Roth, B. Jensen, 2015 .