Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Foot drop"”.
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Sensor Fusion based Gait Recognition for Accurate Actuation of Foot Drop Stimulation
Foot drop is a walking (gait) disability resulting with defect in neural pathway to lower limb after a stroke or traumatic event. The foot drop patients mainly lack the forefoot lift (dorsiflexion) while swinging the foot forward. In some cases, excessive inward movement (inversion) during swing …
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The evaluation of and comparative evidence for two types of interventional devices for foot-drop of central neurological origin
Introduction This thesis focusses on ankle foot orthoses (AFO) and functional electrical stimulation (FES) for the correction of foot-drop. It consists of two parts linked through identification of three gaps in the knowledge base: 1) limitations in device design, 2) limitations in device …
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Effects of two different types of ankle foot orthoses on gait outcomes in patients with subacute stroke
Ankle Foot Orthosis (AFO) is a commonly prescribed device to improve foot drop and gait in patients with stroke. The purpose of this study was to identify whether patients in the subacute stage of stroke, with foot drop, would have better gait outcomes when using a double adjustable AFO (DA AFO), …
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A surface electrode array-based system for functional electrical stimulation
… electrical stimulation (FES) system for foot drop correction. The thesis reports a series of studies on the design and development of an electrode array, describes how these results informed the design of a practical array and demonstrates methods for using this array in combination with …
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Linear Power Discretization and Nonlinear Formulations for Optimizing Hydropower in a Pumped Storage System
… its large (approx. 9 ft) forebay rise for every foot drop at the Smith Mountain Lake. The linear formulation provides a valuable tool for studying the system under a wide range of conditions without having to worry about the computational difficulties associated with the nonlinear formulation.
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Evaluation of a pneumatic ankle-foot orthosis: portability and functionality
… lab has developed a pneumatically powered ankle-foot orthosis (PPAFO) to address some of these issues. In this dissertation, we address the issue of availability of portable pneumatic power sources, and we evaluate the short-term kinematic and metabolic impact of a bilateral, bidirectional …
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Enhancing the Effectiveness and Availability of Orthoses by Additive Manufacturing
… and long-term residual ankle symptoms. Ankle foot orthoses (AFOs) are the primary intervention for treating and preventing recurrent sprains by providing timely external mechanical support to the ankle joint. However, traditional AFOs are often rigid, heavy, and ill-fitting due to their …
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Design and control of an active ankle-foot orthosis
Active ankle-foot orthoses (AAFOs) assist a user unable to dorsiflex the ankle joint. The optimal AAFO is lightweight and aids the user in achieving a nominal gait. This thesis presents the design and control of a novel discrete nonlinear series elastic actuator for AAFOs. The actuator uses …