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External sensors for the feedback control of functional electrical stimulation assisted walking
DownloadFall 2010
Functional electrical stimulation (FES) is a rehabilitative technology that can be used to improve walking in individuals with mobility impairments due to neurologic injury or disease. Feedback is essential for efficient FES-assisted walking. The overall goal of my project was to investigate...
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Fall 2016
This thesis discusses the pathophysiological mechanisms underlying neuromotor impairments in people with spastic cerebral palsy (CP). Ninety percent of people with CP have spastic CP and 60% have bilateral motor impairments. The first two chapters introduce CP and review the mechanisms known to...
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Neuronal Mechanisms of Hyperexcitability in Individuals with Spasticity after Spinal Cord Injury and Individuals with Bruxism
DownloadFall 2013
Motoneuron hyperexcitability is a characteristic of several different motor disorders. We examined neuronal mechanisms of hyperexcitability in two of these disorders: spasticity after spinal cord injury (SCI) and bruxism. Involuntary muscle spasms after SCI occur as a result of uncontrolled...
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Setting the Tone for Virtual Spasticity Assessment: Planning Development and Testing of the Telerehabilitation-Objective-Neuromuscular- Evaluation (TONE) Device
DownloadSpring 2024
Background: Telehealth provides the ability to connect specialist healthcare providers with patients regardless of geographical location or other limitations restricting in-person care. Spasticity is a common complication affecting individuals with neurological conditions requiring specialist...
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The role fo the adrenergic system in the recovery of motoneuron excitability and spasms after spinal cord injury
DownloadSpring 2011
Brainstem derived noradrenaline (NA) in the spinal cord functions both to increase motoneuron excitability, by facilitating calcium-mediated persistent inward currents (Ca PICs), and to inhibit sensory afferent transmission to motoneurons (excitatory postsynaptic potentials; EPSPs). Spinal cord...
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Fall 2010
Brainstem derived serotonin (5-HT) normally facilitates spinal motoneuron excitability and inhibits sensory afferent transmission and associated spinal reflexes. Because the 5-HT innervation of the spinal cord is almost exclusively derived from brainstem neurons, spinal cord injury leads to an...