Design and validation of a powered knee–ankle prosthesis with high-torque, low-impedance actuators
In this article, we present the design of a powered knee-ankle prosthetic leg, which
implements high-torque actuators with low-reduction transmissions. The transmission …
implements high-torque actuators with low-reduction transmissions. The transmission …
Reducing the energy cost of human walking using an unpowered exoskeleton
With efficiencies derived from evolution, growth and learning, humans are very well-tuned
for locomotion 1. Metabolic energy used during walking can be partly replaced by power …
for locomotion 1. Metabolic energy used during walking can be partly replaced by power …
The VSPA foot: A quasi-passive ankle-foot prosthesis with continuously variable stiffness
MK Shepherd, EJ Rouse - IEEE Transactions on Neural …, 2017 - ieeexplore.ieee.org
Most commercially available prosthetic feet do not exhibit a biomimetic torque-angle
relationship, and are unable to modulate their mechanics to assist with other mobility tasks …
relationship, and are unable to modulate their mechanics to assist with other mobility tasks …
Summary of human ankle mechanical impedance during walking
The human ankle joint plays a critical role during walking and understanding the
biomechanical factors that govern ankle behavior and provides fundamental insight into …
biomechanical factors that govern ankle behavior and provides fundamental insight into …
The challenges and achievements of experimental implementation of an active transfemoral prosthesis based on biological quasi-stiffness: the CYBERLEGs beta …
The CYBERLEGs Beta-Prosthesis is an active transfemoral prosthesis that can provide the
full torque required for reproducing average level ground walking at both the knee and ankle …
full torque required for reproducing average level ground walking at both the knee and ankle …
The relative contribution of ankle moment and trailing limb angle to propulsive force during gait
A major factor for increasing walking speed is the ability to increase propulsive force.
Although propulsive force has been shown to be related to ankle moment and trailing limb …
Although propulsive force has been shown to be related to ankle moment and trailing limb …
Modeling and simulating the neuromuscular mechanisms regulating ankle and knee joint stiffness during human locomotion
M Sartori, M Maculan, C Pizzolato… - Journal of …, 2015 - journals.physiology.org
This work presents an electrophysiologically and dynamically consistent musculoskeletal
model to predict stiffness in the human ankle and knee joints as derived from the joints …
model to predict stiffness in the human ankle and knee joints as derived from the joints …
Estimation of quasi-stiffness of the human hip in the stance phase of walking
K Shamaei, GS Sawicki, AM Dollar - PloS one, 2013 - journals.plos.org
This work presents a framework for selection of subject-specific quasi-stiffness of hip
orthoses and exoskeletons, and other devices that are intended to emulate the biological …
orthoses and exoskeletons, and other devices that are intended to emulate the biological …
A cyber expert system for auto-tuning powered prosthesis impedance control parameters
Typically impedance control parameters (eg, stiffness and damping) in powered lower limb
prostheses are fine-tuned by human experts (HMEs), which is time and resource intensive …
prostheses are fine-tuned by human experts (HMEs), which is time and resource intensive …
Design and evaluation of a quasi-passive knee exoskeleton for investigation of motor adaptation in lower extremity joints
K Shamaei, M Cenciarini, AA Adams… - IEEE Transactions …, 2014 - ieeexplore.ieee.org
In this study, we describe the mechanical design and control scheme of a quasi-passive
knee exoskeleton intended to investigate the biomechanical behavior of the knee joint …
knee exoskeleton intended to investigate the biomechanical behavior of the knee joint …