Design and Characterization of a Biologically Inspired Quasi-Passive Prosthetic Ankle-Foot

Mooney, Luke ;   Lai, Cara ;   Rouse, Elliott

Tags Motor neuroprostheses - RoboticsWearable systems for neurorehabilitationHuman performance

By design, commonly worn energy storage and release (ESR) prosthetic feet cannot provide biologically realistic ankle joint torque and angle...

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Effects of Functional Range of Knee Extension for Transfemoral Prosthesis on Stair Ascent Motion

Inoue, Koh ;   Harada, Ryuichi ;   Wada, Takahiro ;   Suzuki, Keisuke ;   Tachiwana, Shin'ichi

Tags Motor neuroprostheses - RoboticsMotor neuroprostheses - Prostheses

We previously proposed a passive mechanism as the link knee joint unit (LKJ) for a transfemoral prosthesis for stair ascent. The prototype...

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Identification of Ankle Joint Stiffness During Passive Movements - A Subspace Linear Parameter Varying Approach

Sobhani Tehrani, Ehsan ;   Jalaleddini, Kian ;   Kearney, Robert Edward

Tags Neuromuscular systems - Computational modelingNeuromuscular systems - LocomotionNeuromuscular systems - Peripheral mechanisms

This paper describes a novel method for the identification of time-varying ankle joint dynamic stiffness during large passive movements. The...

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Knee Stiffness Estimation in Physiological Gait

Pfeifer, Serge ;   Riener, Robert ;   Vallery, Heike

Tags Neuromuscular systems - LocomotionNeuromuscular systems - EMG processing and applicationsMotor neuroprostheses - Prostheses

During physiological gait, humans continuously modulate their knee stiffness, depending on the demands of the activity and the terrain. A...

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Simulation of a Powered Ankle Prosthesis with Dynamic Joint Alignment

LaPre, Andrew ;   Umberger, Brian ;   Sup, Frank

Tags Human performance - Gait

This paper presents simulations of a new type of powered ankle prosthesis designed to dynamically align the tibia with the ground reaction...

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The Dynamic Effect of Muscle Activation on Knee Stiffness

Ludvig, Daniel ;   Perreault, Eric

Tags Neuromuscular systems - Postural and balanceNeuromuscular systems - LocomotionNeuromuscular systems - Peripheral mechanisms

Adapting limb mechanics in a task and environment dependent manner is one component of human motor control. Joint mechanics have been...

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