Clinical trials

The purpose of this research is to evaluate the safety, feasibility, and tolerability of non-invasive spinal stimulation used in the home and/or community in combination with a functional home exercise program for the upper extremities (arm/hand function) as well as their combined impacts on changes in upper extremity function. The expected duration of participation in this study is about 31-33 hours over a 13-25-week period. Enrollees in this study will be randomly assigned to one of two groups: 1) upper extremity functional task-specific training combined with non-invasive transcutaneous spinal stimulation, or 2) waitlist control, which involves the same intervention, but with a 12-week delayed start. Participants complete initial testing (one time if in group one and three times \[at weeks 0, 8, and 12\] if in group two), 24 1-hour training sessions (2x/week in home with caregiver/companion support and 1x/week with research team in person or via video conference for 8 weeks), a post-treatment evaluation, and a final evaluation (4 weeks after post-treatment).

The primary objective of this study is to gather information about the effectiveness of abdominal FES to improve bowel management time (BMT) for people with chronic SCI. This study will also evaluate whether abdominal FES can improve: 1) bowel-related quality of life, 2) participant-reported bowel function, 3) bowel management strategy, 4) bladder symptoms, and 5) unplanned hospital admissions. In addition, we will also explore participant perspectives and experiences about the stimulation sessions and use of the device.

Heart attacks and strokes are among the most common causes of premature death in individuals living with spinal cord injury (SCI) and appear to occur earlier in life. The factors that lead to the heighten and accelerated risk of heart attacks and strokes in adults living with SCI remain poorly understood. The investigators aim to uncover why this happens and find ways to prevent it. Our research focuses on how important cells which line blood vessels, called endothelial cells, function after SCI. The investigators test endothelial function in live conscious people with SCI. The investigators also study signaling molecules endothelial cells release called endothelial cell derived microvesicles (EMVs), which the investigators can measure in blood to tell us the health of endothelial cells. By using these rigorous tests of vascular function, the investigators have determined that endothelial cells appear dysfunctional after SCI. The investigators also know that many men with SCI have low testosterone levels. Our team has studied testosterone's effects on endothelial dysfunction and believe low testosterone may be contributing to endothelial dysfunction after SCI. By understanding these mechanisms, the investigators hope to improve the lives of those living with SCI and reduce their risk for heart attacks and strokes. The investigators propose to study the influence of testosterone on endothelial function by using state-of-the-art clinical and laboratory experiments to assess endothelial function in men with SCI with low and normal testosterone levels.

This study plans to learn how endothelial cells, single cell lining of blood vessels may be dysfunctional after a spinal cord injury. Endothelial dysfunction will be measured by the capacity of blood vessels to vasodilate (increase in size) and alter blood flow is lower in adults with a spinal cord injury in comparison to adults without a spinal cord injury. The mechanisms which may alter this function may be critical in reducing the risk of heart attacks and strokes in people with spinal cord injuries.

This proposed study will examine a walking intervention to promote changes in conscious state in individuals with disorders of consciousness (DoC) due to acquired brain injury (ABI). Recent practice guidelines highlight the need to develop interventions to arouse patients with DoC, as current treatment options are scarce with limited to low-quality pharmaceutical and electrical stimulation approaches to improve outcomes. New data indicates patients with chronic DoC may benefit from therapeutic intervention prioritizing repeated multimodal sensory (i.e., simultaneous vestibular, proprioceptive, and visual) input, but likely not attain comparable functional recovery to those who demonstrate early command following ability. Interventions activating pathways of the cerebral consciousness network may leverage a substrate for recovery. We hypothesize that walking in an overground robotic exoskeleton (ORE) is safe, feasible, and will simultaneously stimulate endogenous cognitive and automatic pathways associated with walking5 to promote changes in behavioral performance in individuals with DoC.

This study will explore whether the types and intensity of the interventions being delivered will yield measurable cognitive benefits in addition to improved mobility and balance. The study evaluates three therapeutic approaches to improve mobility and balance after traumatic brain injury (TBI): Conventional Gait and Balance Training, high intensity step training, and high intensity step training with virtual reality.

Individuals with spinal cord injury have heart attacks and strokes more frequently, and much earlier in life. People with spinal cord injuries develop plaque in vessels much faster, and the reasons why are unclear. Doctors generally attributed the increased risk with weight gain and developing diabetes, but many studies have shown that even without these common factors, plaque in vessels is developing more often and faster. Endothelial cells are a single layer of cells that line all vessels in the body and plays an important role in vessel health. Damage to endothelial cells is known to lead to heart attacks and strokes. Past studies on endothelial cells of people with spinal cord injury have been unclear. The investigators have new data that these cells are unhealthy after spinal cord injury a measurement. This includes measuring endothelial health by directly altering its function using a catheter in the arm and measuring small particles in blood called endothelial microvesicles. If the project is successful, the investigators will learn important information on the health of endothelial cells after spinal cord injury. The investigators will also be able to use these markers of endothelial cell function to create treatments to improve vessel health and prevent heart attacks and strokes later in life in people with spinal cord injury.