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The main goal of the project is to develop multiple noninvasive neuromodulatory strategies to facilitate full weight bearing stepping overground in people with paralysis. We will determine the effectiveness of combining noninvasive spinal cord stimulation and the administration of buspirone (a monoaminergic agonist) in facilitating locomotor activity in a gravity-neutral apparatus, during body weight supported stepping on a treadmill, when stepping overground in an assistive robotic exoskeleton, or during full weight bearing stepping overground in a rolling walker. Our objective is to identify the experimental variables that define the efficacy of these novel neuromodulatory techniques over a 5 year period in 15 participants with severe spinal cord injury who are at least one year post-injury.
Aim 1: Define the relative effectiveness of transcutaneous electrical stimulation at multiple stimulation spinal sites and oral Buspirone in facilitating nonweight-bearing (gravity neutral device, GND) and weight-bearing (treadmill) stepping in individuals with chronic motor complete paralysis.
Aim 1.1: Define the relative effectiveness of transcutaneous electrical stimulation at multiple spinal sites to facilitate non-weight-bearing (GND) and weight-bearing (treadmill) stepping in spinal cord injury subjects.
Aim 1.2: Define the relative effectiveness of transcutaneous electrical stimulation at multiple spinal sites plus oral Buspirone to facilitate nonweight-bearing (gravity neutral device, GND) and weight-bearing (treadmill) stepping in spinal cord injury subjects.
Aim 2: Determine the relative effectiveness of Ekso-technology combined with transcutaneous electrical stimulation and/or oral Buspirone in lowering the robotic assistance and enhancing the ability to step self-assisted in a rolling walker during over-ground stepping in individuals with a chronic, severe (AIS A/B) spinal injury.
Aim 3: Determine the relative effectiveness of Ekso-technology combined with transcutaneous electrical stimulation and/or oral Buspirone in lowering the robotic assistance and enhancing the ability to step self-assisted in a rolling walker during over-ground stepping in individuals with motor incomplete (AIS C) paralysis.
Spinal Cord Injuries
Buspirone, Non-invasive Spinal Cord Stimulation, Ekso Bionics Exoskeleton, Gravity Neutral Device, Body Weight Supported Treadmill Training, Rolling Walker
Frazier Rehabilitation and Neuroscience Institute
Not yet recruiting
University of Louisville
Published on BioPortfolio: 2019-10-01T07:54:59-0400
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Application of electric current to the spine for treatment of a variety of conditions involving innervation from the spinal cord.
Pathologic conditions which feature SPINAL CORD damage or dysfunction, including disorders involving the meninges and perimeningeal spaces surrounding the spinal cord. Traumatic injuries, vascular diseases, infections, and inflammatory/autoimmune processes may affect the spinal cord.
Reduced blood flow to the spinal cord which is supplied by the anterior spinal artery and the paired posterior spinal arteries. This condition may be associated with ARTERIOSCLEROSIS, trauma, emboli, diseases of the aorta, and other disorders. Prolonged ischemia may lead to INFARCTION of spinal cord tissue.
Repair of the damaged neuron function after SPINAL CORD INJURY or SPINAL CORD DISEASES.
Pathological processes involving any of the BLOOD VESSELS feeding the SPINAL CORD, such as the anterior and paired posterior spinal arteries or their many branches. Disease processes may include ATHEROSCLEROSIS; EMBOLISM; and ARTERIOVENOUS MALFORMATIONS leading to ISCHEMIA or HEMORRHAGE into the spinal cord (hematomyelia).
Spinal Cord Disorders
The spinal cord is a bundle of nerves that runs down the middle of the back which carry signals back and forth between the body and brain. It is protected by vertebrae, which are the bone disks that make up the spine. An accident that damages the verte...