Results 191 to 200 of about 547,594 (398)

Design, Analysis, and Development of Low-Cost State-of-the-Art Magnetorheological-Based Microprocessor Prosthetic Knee

open access: yesSensors
For amputees, amputation is a devastating experience. Transfemoral amputees require an artificial lower limb prosthesis as a replacement for regaining their gait functions after amputation.
Muhammad Usman Qadir   +5 more
doaj   +1 more source

Within-socket Myoelectric Prediction of Continuous Ankle Kinematics for Control of a Powered Transtibial Prosthesis [PDF]

open access: yes, 2014
Objective. Powered robotic prostheses create a need for natural-feeling user interfaces and robust control schemes. Here, we examined the ability of a nonlinear autoregressive model to continuously map the kinematics of a transtibial prosthesis and ...
Beardsley, Scott A.   +3 more
core   +1 more source

Beyond Gait: Learning Knee Angle for Seamless Prosthesis Control in Multiple Scenarios [PDF]

open access: yesarXiv
Deep learning models have become a powerful tool in knee angle estimation for lower limb prostheses, owing to their adaptability across various gait phases and locomotion modes. Current methods utilize Multi-Layer Perceptrons (MLP), Long-Short Term Memory Networks (LSTM), and Convolutional Neural Networks (CNN), predominantly analyzing motion ...
arxiv  

Long-term Follow up of Van Nes Rotationplasty for Congenital Proximal Focal Femoral Deficiency [PDF]

open access: yes, 2013
Van Nes rotationplasty may be used for patients with congenital proximal focal femoral deficiency (PFFD). The lower limb is rotated to use the ankle and foot as a functional knee joint within a prosthesis.
Ackman, Jeffrey D.   +8 more
core   +1 more source

Mechanical alignment tolerance of a cruciate-retaining knee prosthesis under gait loading-A finite element analysis. [PDF]

open access: yesFront Bioeng Biotechnol, 2023
Luan Y   +8 more
europepmc   +1 more source

Passive knee flexion increases forward impulse of the trailing leg during the step-to-step transition [PDF]

open access: yesarXiv
Human walking efficiency relies on the elastic recoil of the Achilles tendon, facilitated by a "catapult mechanism" that stores energy during stance and releases it during push-off. The catapult release mechanism could include the passive flexion of the knee, as the main part of knee flexion was reported to happen passively after leading leg touch-down.
arxiv  

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