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Rehabilitation and Therapy Commons

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University of Nevada, Las Vegas

Physical Therapy Faculty Publications

Series

Post-stroke hemiparesis

Articles 1 - 4 of 4

Full-Text Articles in Rehabilitation and Therapy

Slow Walking In Individuals With Chronic Post-Stroke Hemiparesis: Speed Mediated Effects Of Gait Kinetics And Ankle Kinematics, Jing Nong Liang, Kai-Yu Ho, Yun-Ju Lee, Corey Ackley, Kiley Aki, Joshua Arias, Jassie Trinh Mar 2021

Slow Walking In Individuals With Chronic Post-Stroke Hemiparesis: Speed Mediated Effects Of Gait Kinetics And Ankle Kinematics, Jing Nong Liang, Kai-Yu Ho, Yun-Ju Lee, Corey Ackley, Kiley Aki, Joshua Arias, Jassie Trinh

Physical Therapy Faculty Publications

Post-stroke rehabilitation often aims to increase walking speeds, as faster walking is associated with improved functional status and quality of life. However, for successful community ambulation, ability to modulate (increase and decrease) walking speeds is more important than walking continuously at constant speeds. Increasing paretic propulsive forces to increase walking speed has been extensively examined; however, little is known about the mechanics of slow walking post-stroke. The primary purpose of this study was to identify the effects of increased and decreased walking speeds on post-stroke kinetics and ankle kinematics. Fifteen individuals with chronic post-stroke hemiparesis and 15 non-neurologically impaired controls …


Immediate Effects Of Anodal Transcranial Direct Current Stimulation On Postural Stability Using Computerized Dynamic Posturography In People With Chronic Post-Stroke Hemiparesis, Jing Nong Liang, Leonard Ubalde, Jordon Jacklin, Peyton Hobson, Sara Wright-Avila, Yun-Ju Lee Aug 2020

Immediate Effects Of Anodal Transcranial Direct Current Stimulation On Postural Stability Using Computerized Dynamic Posturography In People With Chronic Post-Stroke Hemiparesis, Jing Nong Liang, Leonard Ubalde, Jordon Jacklin, Peyton Hobson, Sara Wright-Avila, Yun-Ju Lee

Physical Therapy Faculty Publications

Postural stability is commonly decreased in individuals with chronic post-stroke hemiparesis due to multisystemic deficits. Transcranial direct current stimulation (tDCS) is a non-invasive method to modulate cortical excitability, inducing neuroplastic changes to the targeted cortical areas and has been suggested to potentially improve motor functions in individuals with neurological impairments. The purpose of this double-blinded, sham-controlled study was to examine the acute effects of anodal tDCS over the lesioned motor cortex leg area with concurrent limits of stability training on postural control in individuals with chronic post-stroke hemiparesis. Ten individuals with chronic post-stroke hemiparesis received either anodal or sham tDCS …


Altered Achilles Tendon Morphology In Individuals With Chronic Post-Stroke Hemiparesis: A Case Report, Jing Nong Liang, Kai-Yu Ho Apr 2020

Altered Achilles Tendon Morphology In Individuals With Chronic Post-Stroke Hemiparesis: A Case Report, Jing Nong Liang, Kai-Yu Ho

Physical Therapy Faculty Publications

Background: Individuals post-stroke walk slowly and with more effort, which puts them at higher risks for falls. The slow walking speed results from insufficient propulsive forces generated by the paretic leg. Current rehabilitative efforts to improve walking function target increasing propulsive forces, but overlook the muscle-tendon unit. Case presentations: Two individuals with chronic post-stroke hemiparesis are presented. In both individuals post-stroke, paretic ankle plantarflexors presented with increased muscle tone. Gait kinetics revealed asymmetric propulsive forces, specifically, insufficient propulsive forces by the paretic legs, consistent with previous literature. Sonography revealed increased thickness of paretic Achilles tendon at the calcaneal insertion, in …


Impaired H-Reflex Adaptations Following Slope Walking In Individuals With Post-Stroke Hemiparesis, Jing Nong Liang, Yun Ju Lee, Eric Akoopie, Brooke Conway Kleven, Trisha Koch, Kai-Yu Ho Oct 2019

Impaired H-Reflex Adaptations Following Slope Walking In Individuals With Post-Stroke Hemiparesis, Jing Nong Liang, Yun Ju Lee, Eric Akoopie, Brooke Conway Kleven, Trisha Koch, Kai-Yu Ho

Physical Therapy Faculty Publications

Background and Purpose: Short term adaptations in the Ia afferent-motoneuron pathway, as measured using the H-reflex, in response to altered ground reaction forces (GRFs) applied at the feet during slope walking have been observed in the non-impaired nervous system. The ability of the stroke-impaired nervous system to adapt to altered GRFs have not been examined. The purpose of this study was to examine the acute effects of altered propulsive and braking forces applied at the feet, which naturally occurs when walking on different slopes, on adaptations of the H-reflex pathway in individuals with chronic post-stroke hemiparesis.