Development of a Control Algorithm for Functional Electrical Stimulation to Achieve Smooth Motion

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Ghaem Maghami, Horieh | 2014

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 45327 (08)
University: Sharif University of Technology
Department: Mechanical Engineering
Advisor(s): Behzadipour, Saeed
Abstract:
The use of functional electrical stimulation after spinal cord injury is one of the most effective ways to prevent muscle atrophy.” Enzymes construction set, torque output increases and improved fatigue resistance”.
Functional electrical stimulation devices help in the operation of a muscle by applying a weak electrical current. This stimulation causes muscle contraction. In other words, it replaces the neural signals required to move the limb that cannot be produced due to causes such as spinal cord injury (SCI) orsecondary problems that arise after SCI.
One of the drawbacks of using FES is jerky motions in the muscles and limps. Such movements are not only harmful, but results in intensified muscle pain and leads to patient rejection.
The goal of this project is to study the effective factors on the motion jerk and the factors that affect the voluntary contraction and eventually, introduce an algorithm to suppress the motion jerk. The algorithm is presented for knee extension. The proposed algorithm is evaluated simulation and experiment. The results have shown promising improvements on the smoothness of the motion
Keywords:
Functional Electrical Stimulation ; Action Potential ; Jerc ; Musculoskeletal Modeling

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