Results 101 to 110 of about 53,931 (278)

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

Nonlinear Elastic Material Property Estimation of Lower Extremity Residual Limb Tissues [PDF]

open access: yes, 2003
The interface stresses between the residual limb and prosthetic socket have been studied to investigate prosthetic fit. Finite-element models of the residual limb-prosthetic socket interface facilitate investigation of the mechanical interface and may ...
Silver-Thorn, M. Barbara   +1 more
core   +2 more sources

Enhancing Prosthetic Safety and Environmental Adaptability: A Visual-Inertial Prosthesis Motion Estimation Approach on Uneven Terrains [PDF]

open access: yesarXiv
Environment awareness is crucial for enhancing walking safety and stability of amputee wearing powered prosthesis when crossing uneven terrains such as stairs and obstacles. However, existing environmental perception systems for prosthesis only provide terrain types and corresponding parameters, which fails to prevent potential collisions when crossing
arxiv  

A Phase Variable Approach for Improved Rhythmic and Non-Rhythmic Control of a Powered Knee-Ankle Prosthesis [PDF]

open access: yesarXiv, 2018
Although there has been recent progress in control of multi-joint prosthetic legs for rhythmic tasks such as walking, control of these systems for non-rhythmic motions and general real-world maneuvers is still an open problem. In this article, we develop a new controller that is capable of both rhythmic (constant-speed) walking, transitions between ...
arxiv  

The lived experience of persons with an amputation [PDF]

open access: yes, 2014
This paper presents an exploratory study of Maltese persons living with an amputation. Semi-structured interviews were conducted with four participants.
Farrugia Debono, Roberta   +1 more
core   +1 more source

Fusing uncalibrated IMUs and handheld smartphone video to reconstruct knee kinematics [PDF]

open access: yes
Video and wearable sensor data provide complementary information about human movement. Video provides a holistic understanding of the entire body in the world while wearable sensors provide high-resolution measurements of specific body segments.
arxiv   +1 more source

Running With a Powered Knee and Ankle Prosthesis

open access: yesIEEE Transactions on Neural Systems and Rehabilitation Engineering, 2015
This paper presents a running control architecture for a powered knee and ankle prosthesis that enables a transfemoral amputee to run with a biomechanically appropriate running gait and to intentionally transition between a walking and running gait.
Michael Goldfarb   +2 more
openaire   +2 more sources

Sensor Fusion for Predictive Control of Human-Prosthesis-Environment Dynamics in Assistive Walking: A Survey [PDF]

open access: yesarXiv, 2019
This survey paper concerns Sensor Fusion for Predictive Control of Human-Prosthesis-Environment Dynamics in Assistive Walking. The powered lower limb prosthesis can imitate the human limb motion and help amputees to recover the walking ability, but it is still a challenge for amputees to walk in complex environments with the powered prosthesis ...
arxiv  

A case of aseptic loosening after total knee replacement with porous-coated mega prosthesis despite progression of extra bone growth

open access: yesRadiology Case Reports
Total knee replacement with mega prosthesis for periprosthetic fractures after total knee arthroplasty is related to early functional recovery, but aseptic loosening of the implant has been a major reoperation factor in the long-term outcome of total ...
Ryota Miyamoto, MD   +4 more
doaj  

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