Stroke Clinical Trials

This study will examine the effect of TMS on people with stroke and aphasia as well as healthy individuals. Read Less

The goal of this clinical trial is to determine if Transcranial Magnetic Stimulation (TMS) combined with modified Constraint Induced Language Therapy (mCILT) is an effective treatment for aphasia when delivered in the subacute stage after stroke. The main questions this study aims to answer are: 1. Can TMS combined with mCILT improve overall speech? 2. Can we identify specific behavioral and biological characteristics that would benefit most from the TMS and mCILT treatment? Researchers will compare real TMS to sham (fake) TMS to see whether TMS can treat subacute aphasia. Importantly, this trial will use electric field guided TMS to identify optimal and individualized stimulation intensity and site targeting. Participants will: * Complete a screening and medical intake to determine eligibility * Undergo MRI scans * Participate in 10 consecutive sessions (Monday-Friday) of TMS and mCILT treatment * Complete follow-up assessments immediately and 4 months after treatment Read Less

The purpose of this research study is to understand the efficacy of using an immersive Virtual Reality (VR) environment, with task-specific training, to encourage arm movement following stroke. Read Less

To evaluate feasibility and effectiveness of non-invasive VNS to enhance stroke recovery Read Less

This research study aims to understand the relationship between brain stimulation and leg skill learning in both healthy adults and persons with chronic stroke. Read Less

62 patients who are one year post stroke and have Aphasia as a result of that stroke will be recruited. Participants will have 4 assessment sessions and 15 treatment sessions. The TDCS will be to right Inferior Frontal Gyrus (IFG) (25 active, 25 sham) for 15 days. A combined semantic feature analysis/phonological components analysis treatment will be paired with the stimulation. Two assessment sessions will be pretreatment, 1 session immediately post-treatment, and 1 session at 3 months follow-up. Read Less

Constraint-Induced Therapy (CI Therapy) is a behavioral approach to neurorehabilitation and consists of multi-components that have been applied in a systematic method to improve the use of the limb or function addressed in the intensive treatment. CI Therapy for the more-affected upper extremity (UE) post-stroke is administered in daily treatment sessions over consecutive weekdays. Sessions include motor training with repeated, timed trials using a technique called shaping, a set of behavioral strategies known as the Transfer Package (TP) to improve the use of the more-affected hand in the life situation, and strategies to remind participants to use the more-affected UE including restraint. Robust improvements in the amount and qualify of use have been realized with stroke participants from mild-to-severe UE impairment. Read Less

Constraint-Induced Movement Therapy or CI Therapy is a form of treatment that systematically employs the application of selected behavioral techniques delivered in intensive treatment over consecutive day with the following strategies utilized: behavioral strategies are implemented to improve the use of the more- affected limb in life situation called a Transfer Package (TP), motor training using a technique called shaping to make progress in successive approximations, repetitive, task oriented training, and strategies to encourage or constrain participants to use the more-affected extremity including restraint of the less-affected arm in the upper extremity (UE) protocol. Numerous studies examining the application of CI therapy with UE rehabilitation after stroke have demonstrated strong evidence for improving the amount of use and the quality of the more-affected UE functional use in the participant's daily life situation. CI Therapy studies with adults, to date, have explored intensive treatment for participants with a range from mild-to-severe motor impairment following stroke with noted motor deficits and limited use of the more-affected arm and hand in everyday activities. Each CI Therapy protocol was designed for the level of impairment demonstrated by participants recruited for the study. However, often following stroke, patients not only have motor deficits but somatosensory impairments as well. The somatosensory issues have not, as yet, been systematically measured and trained in CI Therapy protocols with adults and represent an understudied area of stroke recovery. We hypothesize that participants with mild-to-severe motor impairment and UE functional use deficits can benefit from CI therapy protocols that include somatosensory measurement and training components substituted for portions of motor training without loss in outcome measure gains. Further, we hypothesize that adults can improve somatosensory outcomes as a result of a combined CI therapy plus somatosensory component protocol. Read Less

Weight loss interventions for neurologically health individuals have established benefits for improving physical and psychosocial function. The investigators believe that Veterans who have had a stroke would realize similar benefits and that the effects would be enhanced with concurrent exercise training. The investigators will study the effects of a 15-week lifestyle management program to determine if it can effectively improve some of the physical and psychosocial problems common in Veterans who have had a stroke. Read Less

Stroke survivors have compromised vascular function which may contribute to secondary stroke risk, cardiovascular disease, and may limit their exercise tolerance. No studies have examined how femoral blood flow responds to both passive leg movement, a measure of microvascular function, as well as active leg contractions, a measure of the hyperemic response to exercise. Leg muscles with a reduced blood flow response to movement could be associated with decreased neuromuscular function, such as leg strength and fatigue. Preliminary data showing a single bout of ischemic conditioning may improve vascular function and muscle activation in healthy adults and individuals post-stroke. Therefore, the investigators want to examine if ischemic conditioning will also improve the blood flow response to passive leg movements as well as during single leg active contractions. Read Less

This innovative study will address scientific and clinical areas relatively unexplored in chronic stroke that could lead to greater recovery of walking. Ischemic Conditioning (IC) is a non-invasive, simple procedure that improves motor function, exercise performance and cardiovascular function in healthy controls, but it has never been applied to the stroke population. We postulate that IC enhances the recruitment of motoneurons and results in positive neural adaptations, improves vascular endothelial function and peripheral blood flow, and together these improvements result in an increased capacity to exercise and faster walking speed. Future studies will examine the effects of IC and traditional therapy at different time points of recovery post stroke, durability of IC, molecular mechanisms of neural and cardiovascular adaptation and the efficacy compared with other adjuncts. Read Less

The Hawks in Motion (HIM) High Intensity Exercise program is designed to implement the American Physical Therapy Clinical Practice Guidelines and American College of Sports Medicine recommendations for exercise for people with neurologic disability. Doctor of Physical Therapy (DPT) students administer the HIM High Intensity Exercise Program. A prior study evaluated the feasibility, safety, and efficacy of the HIM High Intensity Exercise Program and found it feasible, safe, and effective for 30 people with neurologic disabilities between the ages of 8-99 years. The investigators would like to evaluate whether participation in the HIM High Intensity Exercise Program affects mobility in everyday life. Physical activity will be measured one week before program implementation and one week after to assess if the participants' mobility in everyday improved. Read Less