Review of control strategies for lower-limb exoskeletons to assist gait

R Baud, AR Manzoori, A Ijspeert, M Bouri - Journal of neuroengineering …, 2021 - Springer
Background Many lower-limb exoskeletons have been developed to assist gait, exhibiting a
large range of control methods. The goal of this paper is to review and classify these control …

Coordination between partial robotic exoskeletons and human gait: A comprehensive review on control strategies

JS Lora-Millan, JC Moreno, E Rocon - Frontiers in Bioengineering …, 2022 - frontiersin.org
Lower-limb robotic exoskeletons have become powerful tools to assist or rehabilitate the gait
of subjects with impaired walking, even when they are designed to act only partially over the …

Self-aligning mechanism improves comfort and performance with a powered knee exoskeleton

SV Sarkisian, MK Ishmael… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Misalignments between powered exoskeleton joints and the user's anatomical joints are
inevitable due to difficulty locating the anatomical joint axis, non-constant location of the …

Powered hip exoskeleton improves walking economy in individuals with above-knee amputation

MK Ishmael, D Archangeli, T Lenzi - Nature Medicine, 2021 - nature.com
Above-knee amputation severely reduces the mobility and quality of life of millions of
individuals. Walking with available leg prostheses is highly inefficient, and poor walking …

A powered hip exoskeleton with high torque density for walking, running, and stair ascent

MK Ishmael, D Archangeli… - IEEE/ASME transactions on …, 2022 - ieeexplore.ieee.org
Powered exoskeletons need actuators that can generate substantial assistive torque and
orthoses that can efficiently transfer the assistive torque to the user. Powered exoskeletons …

Real-time activity recognition with instantaneous characteristic features of thigh kinematics

S Cheng, E Bolívar-Nieto… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Current supervised learning or deep learning-based activity recognition classifiers can
achieve high accuracy in recognizing locomotion activities. Most available techniques use a …

A novel wavelet-based gait segmentation method for a portable hip exoskeleton

C Livolsi, R Conti, F Giovacchini… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
For a lower limb exoskeleton, accurate and continuous estimation of the gait phase in real
time is a fundamental requirement to provide a well-tailored assistive action at the proper …

Robust torque predictions from electromyography across multiple levels of active exoskeleton assistance despite non-linear reorganization of locomotor output

JA George, AJ Gunnell, D Archangeli, G Hunt… - Frontiers in …, 2021 - frontiersin.org
Robotic exoskeletons can assist humans with walking by providing supplemental torque in
proportion to the user's joint torque. Electromyographic (EMG) control algorithms can …

Powered hip exoskeleton reduces residual hip effort without affecting kinematics and balance in individuals with above-knee amputations during walking

MK Ishmael, A Gunnell, K Pruyn… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Objective: A unilateral, lightweight powered hip exoskeleton has been shown to improve
walking economy in individuals with above-knee amputations. However, the mechanism …

Design and validation of a lightweight hip exoskeleton driven by series elastic actuator with two-motor variable speed transmission

T Zhang, C Ning, Y Li, M Wang - IEEE Transactions on Neural …, 2022 - ieeexplore.ieee.org
To overcome the different requirements of torque-velocity characteristics for walking,
running, stand-to-sit, sit-to-stand, and climbing stairs, we propose a novel concept for …