Results 11 to 20 of about 139,667 (256)

Neurophysiological Changes in Post Stroke Spasticity Patients

open access: yesThe Iraqi Journal of Medical Sciences, 2023
Background: A stroke is a serious life-threatening medical condition that occurs when the blood supply to part of the brain is disrupted. Spasticity is a state, in which, there is an increase in muscle tone or stiffness, which might be associated with ...
Safa M. Fawzi   +3 more
doaj   +9 more sources

Integration of Convergent Sensorimotor Inputs Within Spinal Reflex Circuits in Healthy Adults

open access: yesFrontiers in Human Neuroscience, 2020
The output from motor neuron pools is influenced by the integration of synaptic inputs originating from descending corticomotor and spinal reflex pathways.
Alejandro J. Lopez   +10 more
doaj   +1 more source

Soleus H‐reflex operant conditioning changes the H‐reflex recruitment curve [PDF]

open access: yesMuscle & Nerve, 2012
Introduction: Operant conditioning can gradually change the human soleus H‐reflex. The protocol conditions the reflex near M‐wave threshold. In this study we examine its impact on the reflexes at other stimulus strengths.Methods: H‐reflex recruitment curves were obtained before and after a 24‐session exposure to an up‐conditioning (HRup) or a down ...
Aiko K, Thompson   +2 more
openaire   +2 more sources

Novel human models for elucidating mechanisms of rate-sensitive H-reflex depression

open access: yesBiomedical Journal, 2020
Background: This study used novel human neurophysiologic models to investigate whether the mechanism of rate-sensitive H-reflex depression lies in the pre-synaptic or post-synaptic locus in humans.
Ya-Ju Chang   +6 more
doaj   +1 more source

Biphasic Effect of Buspirone on the H-Reflex in Acute Spinal Decerebrated Mice

open access: yesFrontiers in Cellular Neuroscience, 2020
Pharmacological treatment facilitating locomotor expression will also have some effects on reflex expression through the modulation of spinal circuitry.
Yann Develle, Hugues Leblond
doaj   +1 more source

Soleus H and Lower Limb Posterior Root Muscle Reflexes During Stepping After Incomplete SCI

open access: yesFrontiers in Rehabilitation Sciences, 2022
The goal of this study was to examine and compare the step cycle related modulation of the soleus H and posterior root muscle (PRM) reflexes in subjects with and without spinal cord injury.
Keith E. Tansey   +3 more
doaj   +1 more source

Intraoperative changes in the H-reflex pathway during deep brain stimulation surgery for Parkinson’s disease: A potential biomarker for optimal electrode placement

open access: yesBrain Stimulation, 2020
Background: Deep Brain Stimulation (DBS) targeting the subthalamic nucleus (STN) and globus pallidus interna (GPi) is an effective treatment for cardinal motor symptoms and motor complications in Parkinson’s Disease (PD).
Jennifer C. Andrews   +3 more
doaj   +1 more source

Neuronal Actions of Transspinal Stimulation on Locomotor Networks and Reflex Excitability During Walking in Humans With and Without Spinal Cord Injury

open access: yesFrontiers in Human Neuroscience, 2021
This study investigated the neuromodulatory effects of transspinal stimulation on soleus H-reflex excitability and electromyographic (EMG) activity during stepping in humans with and without spinal cord injury (SCI).
Md. Anamul Islam   +3 more
doaj   +1 more source

Modulation of the Hoffmann reflex in the tibialis anterior with a change in posture

open access: yesPhysiological Reports, 2019
Hoffmann (H‐) reflex amplitudes in plantar flexor soleus muscle are modulated by posture, yet dorsiflexor tibialis anterior (TA) H‐reflex parameters have sparingly been studied.
Janelle Unger   +6 more
doaj   +1 more source

Evaluation of Relationship between Extensor Digitorum Communis Hoffmann-reflex Latency and Upper Limb Length and Age

open access: yesAdvanced Biomedical Research, 2018
Background: The aim of this study was to evaluate the relation between normal values of extensor digitorum communis (EDC) Hoffmann-reflex (H-reflex) latency, upper limb length and age in normal participants, and to determine whether there is any ...
Saeid Khosrawi   +2 more
doaj   +1 more source

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