منابع مشابه
Patient-Adaptive Prosthetic and Orthotic Leg Systems
Two computer-controlled devices for leg rehabilitation are presented: 1) an external knee prosthesis for trans-femoral amputees; and 2) a force-controllable ankle-foot orthosis to assist individuals suffering from drop-foot, a gait pathology resulting from muscle weakness in ankle dorsiflexors. Here muscle-like actuators and biologically-inspired control schemes are employed to enhance patient ...
متن کاملRobust Adaptive Impedance Control of a Prosthetic Leg
We propose a regressor-based nonlinear robust model reference adaptive impedance controller for an active prosthetic leg for a transfemoral amputee. We use an adaptive control term to estimate the uncertain parameters of the system, and a robust control term so the system trajectories converge to a sliding manifold and exhibit robustness to variations of ground reaction force (GRF). The sliding...
متن کاملStable Robust Adaptive Impedance Control of a Prosthetic Leg
We propose a nonlinear robust model reference adaptive impedance controller for an active prosthetic leg for transfemoral amputees. We use an adaptive control term to consider the uncertain parameters of the system, and a robust control term so the system trajectories converge to a sliding mode boundary layer and exhibit robustness to variations of ground reaction force (GRF). The boundary laye...
متن کاملVirtual prototyping of a semi-active transfemoral prosthetic leg.
This article presents a virtual prototyping study of a semi-active lower limb prosthesis to improve the functionality of an amputee during prosthesis-environment interaction for level ground walking. Articulated ankle-foot prosthesis and a single-axis semi-active prosthetic knee with active and passive operating modes were considered. Data for level ground walking were collected using a photogr...
متن کاملThe effects of prosthetic ankle dorsiflexion and energy return on below-knee amputee leg loading.
BACKGROUND Prosthetic devices are intended to return lower limb amputees to their pre-amputation functional status. However, prosthetic devices designed for unilateral below-knee amputees have yet to completely restore the biomechanical functions normally provided by the ankle muscles, leading to gait asymmetries and increased reliance on their intact leg. In an effort to improve amputee gait, ...
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ژورنال
عنوان ژورنال: IJIREEICE
سال: 2017
ISSN: 2321-2004
DOI: 10.17148/ijireeice.2017.5423