Innovative Closed-loop Functional Electrical Stimulation Control System for Augmenting Post-stroke Gait
Sponsored by Emory University
About this study
This study will compare the performance of a novel data-driven model-predictive controller (MPC) based functional electrical stimulation (FES) system versus a conventional FES system for footdrop correction during treadmill and overground walking tasks in people post-stroke.
Functional electrical stimulation (FES) is a common rehabilitation tool that incorporates electrical stimulation timed with a functional task to augment paretic muscle function in people with neuro-pathologies such as stroke and spinal cord injury. The rigor of previous research has established the safety, as well as both neuro-prosthetic and therapeutic effects of FES systems for standing, walking, and grasping. Stroke is the leading cause of disability, and footdrop is a highly prevalent post-stroke gait deficit, leading to insufficient ankle dorsiflexion during the swing phase of gait, and contributing to reduced mobility. FES systems that correct footdrop to improve gait function and reduce fall risk are gaining popularity, with commercial systems such as enhancing translation potentia…
Where this study is enrolling
- I'm interested
Emory Rehabilitation Hospital
Atlanta, Georgia
Who can participate
Inclusion criteria
- ✓\>6 months since stroke
- ✓cortical or subcortical stroke
- ✓able to walk 10-meters with or without an assistive device
- ✓sufficient cardiovascular health and ankle stability to walk on treadmill without ankle orthosis
- ✓passive ankle range of motion to benefit from dorsiflexor FES assistance
- ✓resting heart rate 40-100 bpm
Exclusion criteria
- ✕cerebellar signs
- ✕score \>1 on question 1b (does not know the current month and age) and \>0 on question 1c (can not blink eyes and squeeze hands) on NIH Stroke Scale
- ✕inability to communicate with investigators
- ✕neglect/hemianopia
- ✕unexplained dizziness in past 6 months
- ✕sensory loss in paretic leg
- ✕musculoskeletal or medical conditions limiting walking
- ✕neurologic diagnoses other than stroke
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Trial data sourced from ClinicalTrials.gov.