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This paper presents experimental results of a myoelectric controller designed for reciprocal stair ascent using a transfemoral prosthesis with an actively powered knee joint. The control architecture is derived from able-bodied gait data and estimates knee torque with a linear two-state (stance/swing) impedance control form that includes proportional myoelectric torque control combined with a state-determined...
This paper presents the development of a torque-based myoelectric impedance controller for an active-knee transfemoral prosthesis. An anthropomorphically inspired agonist-antagonist impedance controller studied in a myoelectric elbow prosthesis is adapted for the knee joint. To parameterize the controller, regression analysis was applied to a recently updated lower-extremity neuromuscular simulation...
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