Understanding patient preference in prosthetic ankle stiffness
Background User preference has the potential to facilitate the design, control, and
prescription of prostheses, but we do not yet understand which physiological factors drive …
prescription of prostheses, but we do not yet understand which physiological factors drive …
Variable-stiffness prosthesis improves biomechanics of walking across speeds compared to a passive device
Ankle push-off power plays an important role in healthy walking, contributing to center-of-
mass acceleration, swing leg dynamics, and accounting for 45% of total leg power. The …
mass acceleration, swing leg dynamics, and accounting for 45% of total leg power. The …
Effects of simulated reduced gravity and walking speed on ankle, knee, and hip quasi-stiffness in overground walking
MK MacLean, DP Ferris - PLoS one, 2022 - journals.plos.org
Quasi-stiffness characterizes the dynamics of a joint in specific sections of stance-phase and
is used in the design of wearable devices to assist walking. We sought to investigate the …
is used in the design of wearable devices to assist walking. We sought to investigate the …
A Quasi-Passive Robotic Ankle Foot Orthosis With Speed-Adaptive Stiffness
S Hopkins, C Bowersock, EJ Rouse… - IEEE Robotics and …, 2024 - ieeexplore.ieee.org
Ankle foot orthoses (AFOs) are one of the most prescribed mobility devices for individuals
with walking disability from conditions like cerebral palsy (CP) and stroke. Current AFO …
with walking disability from conditions like cerebral palsy (CP) and stroke. Current AFO …
Design, control, and evaluation of a robotic ankle-foot prosthesis emulator
AJ Anderson, YF Hudak, BC Muir… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
People with transtibial limb loss experience reduced mobility. Intelligent ankle-foot
prostheses have the potential to improve quality of life in people with limb loss, but there are …
prostheses have the potential to improve quality of life in people with limb loss, but there are …
Reducing stiffness of shock-absorbing pylon amplifies prosthesis energy loss and redistributes joint mechanical work during walking
Background A shock-absorbing pylon (SAP) is a modular prosthetic component designed to
attenuate impact forces, which unlike traditional pylons that are rigid, can compress to …
attenuate impact forces, which unlike traditional pylons that are rigid, can compress to …
Enhancing the Efficacy of Lower-body Assistive Devices Through the Understanding of Human Movement in the Real World
In previous studies, researchers have successfully measured walking in healthy able-bodied
humans to create safe control strategies for lower body assistive devices. measurements …
humans to create safe control strategies for lower body assistive devices. measurements …
Patient preference in the selection of prosthetic joint stiffness
Clinical prescription and tuning of prosthetic legs relies heavily on a trial-and-error
paradigm. Patient preference, a formalized representation of what patients want provides an …
paradigm. Patient preference, a formalized representation of what patients want provides an …
Ankle stiffness modulation during different gait speeds in individuals post-stroke
Background Neurotypical individuals alter their ankle joint quasi-stiffness in response to
changing walking speed; however, for individuals post-stroke, the ability to alter their ankle …
changing walking speed; however, for individuals post-stroke, the ability to alter their ankle …
Lower-limb joint quasi-stiffness in the frontal and sagittal planes during walking at different step widths
SL Molitor, RR Neptune - Journal of Biomechanics, 2024 - Elsevier
Quasi-stiffness describes the intersegmental joint moment–angle relationship throughout the
progression of a task. Previous work has explored sagittal-plane ankle quasi-stiffness and its …
progression of a task. Previous work has explored sagittal-plane ankle quasi-stiffness and its …