View clinical trials related to Hemiparesis.
Filter by:The purpose of this study is to determine whether the combination of low frequency repetitive transcranial magnetic stimulation (rTMS) and motor-imagery-based brain computer interface (BCI) training is effective for enhancing motor recovery after stroke. The PI's hypothesis is that, in comparison with traditional physical therapy alone, subjects receiving supplementary rTMS and BCI training will show greater functional improvements in hand motor ability over time as well as recovery of normal motor connectivity patterns.
The primary aim of this Phase II trial is to determine whether it is sufficiently likely that CTX DP treatment at a dose level of 20 million cells improves the recovery in the use of the paretic arm in acute stroke patients to justify a subsequent larger prospectively controlled study. This study will evaluate the safety and efficacy of intracerebral CTX DP at a dose level of 20 million cells in patients with paresis of an arm following an ischaemic middle cerebral artery (MCA) stoke. Eligible patients will have no useful function of the paretic arm a minimum of 28 days after the ischaemic stroke (a modified NIH Stroke Scale (NIHSS) Motor Arm Score of 2, 3 or 4 for the affected arm).
The purpose of this pilot study was to explore the impact of enhancement of the velocity component error in the course of reaching movements of the impaired/hemiparetic limb in an acute stroke subject. We hypothesized that the method would shift velocity profiles toward the optimal, resulting in a reduction in error. A prototype robot. This robotic device system has a two-dimensional motor, basic measurement capacities, and a robotic arm which is engaged to the subject's upper-limb in a sitting position. The enhancement of the velocity component error would shift velocity profiles toward the optimal, resulting in a reduction in error.
The aim of the study is to investigate whether the combination of bihemispheric ("dual") transcranial direct current stimulation (tDCS) and motor training on 5 consecutive days facilitates motor recovery in chronic stroke. Results will be compared to a matched group of patients undergoing anodal tDCS as well as a control group receiving sham tDCS. Functional and structural magnetic resonance imaging (MRI) before/after the intervention and during a 3 month follow-up will help investigating neural correlates of expected changes in motor function of the affected upper extremity.
This study is designed to determine if adding daily weighted braces on the unaffected ankle may benefit to patient who have returned home compare to a placebo intervention (ankle brace without weight).
The purpose of this study is: 1. To augment the MAHI Exo-II, a physical human exoskeleton, with a non-invasive brain machine interface (BMI) to actively include patient in the control loop and thereby making the therapy 'active'. 2. To determine appropriate robotic (kinematic data acquired through sensors on robotic device ) and electrophysiological ( electroencephalography- EEG based) measures of arm motor impairment and recovery after stroke. 3. To demonstrate that the BMI controlled MAHI Exo-II robotic arm training is feasible and effective in improving arm motor functions in sub-acute and chronic stroke population.
Armodafinil is an FDA approved medication with wakefulness-promoting properties. It is a relatively safe agent with interesting neurochemical effects on the catecholamine system, producing an improvement in cognitive function, particularly working memory in humans. When combined with intensive task-related training, armodafinil may accelerate motor recovery in chronic stroke patients. The primary aim of this study is to determine whether administration of armodafinil during subacute post-stroke rehabilitation will augment cortical plasticity and enhance motor recovery. The primary hypothesis suggests that cortical plasticity will be enhanced by armodafinil and, therefore, will induce an improvement in motor function and better performances on measures of motor control.
What is the CHAMP Study? The CHAMP Study is a multisite clinical trial funded by the National Institutes of Health that is comparing the efficacy of alternative therapies for young children with unilateral spastic cerebral palsy (or hemiparetic cerebral palsy). Children who meet study eligibility criteria at one of the three clinical sites (Roanoke, VA; Charlottesville, VA, and Columbus, OH) will be invited to enroll, and their parents will be provided all necessary paperwork along with informed consent documentation. Assignment to one of the alternative therapy conditions will be random. Participation in the study includes assessment of each child prior to treatment, close monitoring of the child's progress during treatment, and post-treatment evaluation at the end of therapy, as well as, 6 and 12 months later. Parents will have an active role in the project, both observing their child during therapy sessions and then engaging in home-based activities that allow the child to practice and extend new motor skills. There will be no charge for the therapy provided. What are the therapies being tested? In the past decade or so, a new form of therapy for children with hemiparetic cerebral palsy was developed and has shown to produce positive changes in individual children and in small clinical trials (e.g., DeLuca, Echols, Ramey, & Taub, 2003; DeLuca, Echols, Law, & Ramey, 2006; Case-Smith, DeLuca, Stevenson, & Ramey, 2012). The therapy is named Constraint-Induced Movement Therapy (CIMT) and refers to a multi-component form of therapy in which the child has the unimpaired or less impaired upper extremity constrained (by a cast or a splint) while also receiving active therapy from a specially trained therapist who shapes new skills and functional activities with the child's more impaired upper extremity. Traditionally, CIMT therapy dosages have been high - often lasting many hours per day, 5 days a week, for 4 consecutive weeks. There are important clinical and scientific questions that need to be answered about the effects of different dosage levels and about different types of constraint on the child's more functional (less impaired) arm and hand. This study will be the first that will directly compare different amounts of therapy and different types of constraint to evaluate what "works best" for young children. The therapy is very play-like and engaging for children, and no negative effects of casting or the high dosages have been detected in previous clinical trials. Who is eligible: Children between 2 and 8 years of age with a diagnosis of unilateral spastic cerebral palsy or hemiparetic cerebral palsy. Children must be relatively healthy, not currently receiving Botox (or other similar medications), and able to understand simple communication and instructions. In advance, the treatment will be explained in detail to parents and a written protocol available to share with the child's physician and other current therapist for review. During the one month of treatment, children will not receive other forms of physical or occupational therapy.
Stroke is the third leading cause of death in the United States. Of those who are affected by stroke, a third becomes permanently disabled. Risk factors for stroke include, but are not limited to, advancing age, physical inactivity, arterial stiffness, and most commonly, high blood pressure. Stroke is a major form of a much boarder problem, cardiovascular disease (CVD). CVD is considered the primary cause of death in the US. Interestingly, increased arterial stiffness of elastic arteries (carotid and aorta) has been shown to be strongly correlated to CVD and stroke. Increased arterial stiffness is considered an independent risk for the development of CVD and stroke. Hence, arterial stiffness has been suggested as a potential therapeutic target for CVD and more specifically stroke. Recently, whole-body vibration (WBV) exercise has been proposed as a new and effective method to improve muscle mass and muscle strength in younger and older individuals. It is known that systemic arterial stiffness decreased 40 min after a single WBV session in healthy men. In our laboratory, we have shown that leg arterial stiffness decreases after a session of WBV. Taken together, this data seems to suggest WBV may be used as a viable way to decrease arterial stiffness. Special populations, such as post-stroke patients, may be unwilling or unable to perform WBV exercise so an inactive form of exercise (vibration) therapy is needed. Passive vibration (PV), allows patients to lie in an inactive, supine position, with their legs placed onto the vibration plate. This exposes the lower limbs to continuous vibration without performing voluntary muscle contraction. PV has been shown to increase skin blood flow on the vibrated extremity through vasodilation in healthy individuals and type 2 diabetics. Previous work in our laboratory has demonstrated that a 10-min session of PV on the legs decreases augmentation index (AIx) , a marker of pressure wave reflection, as well as leg and systemic PWV through decreases in local peripheral resistance in young men. However, the effects of PV on arterial function in post-stroke patients are unknown. It is hypothesized that post-stroke patients will demonstrate a decrease in leg PWV and central AIx. However, greater responses are expected with the lower vibration frequency.
Impaired arm and hand function is one of the most disabling and most common consequences of stroke. The Investigators have developed Contralaterally Controlled Functional Electrical Stimulation (CCFES), an innovative neuromuscular electrical stimulation (NMES) treatment for improving the recovery of hand function after stroke. The purpose of this study is to maximize the treatment effect of CCFES by adding stimulated elbow extension. The specific aims and hypotheses are as follows: AIM 1: Estimate the effect of Arm+Hand CCFES on upper limb motor impairment and activity limitation. Hypothesis 1: Stroke survivors treated with Arm+Hand CCFES have better outcomes on upper limb impairment and activity limitation measures than those treated with dose-matched Arm+Hand Cyclic NMES. AIM 2: Estimate the effect of adding stimulated elbow extension to Hand CCFES. Hypothesis 2: Stroke survivors treated with Arm+Hand CCFES will have greater reductions in upper limb impairment and activity limitation than those treated with Hand CCFES. AIM 3: Describe the relationship between treatment effect and time elapsed between stroke onset and start of treatment. Hypothesis 3: Patients who start Arm+Hand CCFES sooner after their stroke achieve better outcomes.