After stroke, it is common for individuals to experience hand impairment. This deficit can severely restrict functional ability and independence. Recovery of hand function following stroke is highly variable. In this study, we will use brain imaging to predict individual response to treatment after only one therapy session. Survivors of stroke will receive upper extremity therapy with a novel intervention using a smart watch. The device applies imperceptible vibration to the wrist and has been shown to immediately improve chronic stroke survivors' touch sensation and hand dexterity in preliminary studies.
The primary study objective is to determine whether treatment with mexiletine at doses of 300 mg/day or 600 mg/day suppresses cortical hyperexcitability in sporadic ALS patients relative to placebo, and, thus, may be able to slow progression in ALS. The change in resting motor threshold (RMT), estimated from single pulse transcranial magnetic stimulation (TMS) measurements made before treatment, after 4 weeks of treatment, and then again after a 4 week washout, will be used as the primary pharmacodynamic marker of cortical hyperexcitability.
Post-stroke hand impairment is highly prevalent and severely restricts functional ability and independence. Yet, there is no assistive device to help hand function at home, every day, during activities of daily living. This study addresses this gap by providing an innovative technology. The "TheraBracelet" is a wristband applying imperceptible white-noise vibration to skin. TheraBracelet is efficacious, as it has been shown to immediately improve chronic stroke survivors' touch sensation and hand dexterity in preliminary studies. TheraBracelet is affordable by using only a low-cost vibrator. TheraBracelet is also translational, because a vibrator strategically placed at the wrist does not interfere with dexterous finger motions, and it is low-risk by involving only imperceptible vibration on skin. These practicalities assure easy adoption in home environment for large impact on sensorimotor impairment. This study is to determine the feasibility and safety of using this assistive device all day every day for a month during daily activity, and to determine if TheraBracelet's instant effects are sustained during prolonged use. This objective will be accomplished in a double-blinded, randomized, controlled, crossover design study. Feasibility (compliance of using the device everyday) and safety will be assessed for the treatment condition compared to the control condition (wearing the device without vibration) through weekly evaluations. In addition, TheraBracelet's instant benefits in improving hand function will be assessed weekly. Persistence of TheraBracelet's instant benefits across all weekly evaluations will support durability (i.e. desensitization to vibration does not occur during extended daily use over a one-month period). This project is expected to lead to an assistive wristband that increases hand function during activities of daily living, thus increasing independence and quality of life and reducing caregiver burden for a large number of stroke survivors with hand impairment.
Our long term goal is to enhance the locomotion of impaired individuals after a neurological injury.
We are trying to recruit as healthy control participants, and neurologically impaired individuals (incomplete SCI and after-stroke patients) to participate in this study.
For neurologically impaired individuals a physical therapist will complete IRB approved questionnaires to measure your mobility, muscle strength, balance, walking speed, and distance.
All participants will meet with study staff who would then test your reflexes by placing some superficial skin based electrodes behind the knee and apply mild stimulation while standing/sitting.
If enrolled, you may be required to participate for 30 sessions (3 sessions/week), each lasting about one hour over a period of 3 months. Compensation is available for your participation.
You are invited to volunteer for a research study if you have been diagnosed with Amyotrophic Lateral Sclerosis (ALS) within 2 years (24 Months) prior to screening.
This is a non interventional, longitudinal study in patients with ALS. There will be four (4) subject visits in this study: Baseline, month 6, month 12, and month 18. Subjects will have blood and cerebrospinal fluid (a clear fluid found in your brain and spine) collected, and be evaluated with assessment tools that focus on upper and lower motor skills and strength as well as cognitive function. Researchers will use these samples to study ALS, motor neuron disease and other medical conditions.
The purpose of this study is to identify the differences between stroke survivors and healthy individuals' response to balance perturbation during walking for example tripping while walking and to evaluate the effects of non-invasive brain stimulation known as bihemispheric transcranial direct current stimulation (tDCS) on balance recovery during walking in stroke survivors.
Subjects are being asked to volunteer for this research study because they have been diagnosed with Dermatomyositis (DM). This study will test the safety and effectiveness of the investigational new drug, IMO-8400. Subjects will receive a subcutaneous injection of the study drug or placebo once a week for up to 24 weeks during the study. Subjects will complete a total of 27 visits over the course of 32 weeks. After the baseline visit, subjects will have the option of having a visiting nurse (who has been trained in the protocol and approved by the Sponsor) conduct the intervening weekly study visits 2-25 outside of the clinic (e.g., at your home or workplace) rather than coming in to clinic for injections.
Walking is important to persons who have had a stroke and better rehabilitation methods are needed to restore or improve their walking. This project will investigate ways to improve upon and diagnose the specific underlying impairments. Future work will allow clinicians, such as physicians and physical therapists, to make measurements in their clinic to better diagnose a person's specific walking deficit, design a specific treatment plan, and monitor its ability to restore or improve the person's walking.
Rehabilitation interventions including resistance training, functional and task-specific therapy, and gait or locomotor training have been shown to be successful in improving motor function in individuals with neurologic disease or injury. Recent investigations conducted in our laboratory indicate that intense resistance training coupled with task-specific functional training lead to significant gains in functional motor recovery. Similarly, gait rehabilitation involving intense treadmill training and/or task-specific locomotor training has been shown to be effective in improving locomotor ability. However, the underlying neural adaptations associated with these therapeutic approaches are not well understood. Our primary goal is to understand the motor control underpinnings of neurologic rehabilitation in order to apply this knowledge to future generations of therapeutic interventions.