Evidence map›Paper›PMID 30564111›Full record

ArticleFrontiers in neurorobotics2018

The Challenges and Achievements of Experimental Implementation of an Active Transfemoral Prosthesis Based on Biological Quasi-Stiffness: The CYBERLEGs Beta-Prosthesis.

Louis Flynn, Joost Geeroms, Rene Jimenez-Fabian, Sophie Heins, Bram Vanderborght, Marko Munih, Raffaele Molino Lova, Nicola Vitiello, Dirk Lefeber

Abstract read
In one paragraph

Article in Frontiers in neurorobotics, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed.

  1. User preference in the personalized control of an ankle prosthesis: a case study.Journal of neuroengineering and rehabilitation · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Louis FlynnDepartment of Robotics and Multibody Mechanics, Vrije Universiteit Brussel, and Flanders Make, Brussels, Belgium.
Joost GeeromsDepartment of Robotics and Multibody Mechanics, Vrije Universiteit Brussel, and Flanders Make, Brussels, Belgium.
Rene Jimenez-FabianDepartment of Robotics and Multibody Mechanics, Vrije Universiteit Brussel, and Flanders Make, Brussels, Belgium.
Sophie HeinsCenter for Research in Mechatronics, Institute of Mechanics, Materials, and Civil Engineering, Institute of Neuroscience, and Louvain Bionics, Université Catholique de Louvain, Louvain-la-Neuve, Belgium.
Bram VanderborghtDepartment of Robotics and Multibody Mechanics, Vrije Universiteit Brussel, and Flanders Make, Brussels, Belgium.
Marko MunihRobolab, Faculty of Electrical Engineering, University of Ljubljana, Ljubljana, Slovenia.
Raffaele Molino LovaFondazione Don Carlo Gnocchi, Milan, Italy.
Nicola VitielloFondazione Don Carlo Gnocchi, Milan, Italy.
Dirk LefeberDepartment of Robotics and Multibody Mechanics, Vrije Universiteit Brussel, and Flanders Make, Brussels, Belgium.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

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 in the sagittal plane. The prosthesis attempts to produce a natural level ground walking gait that approximates the joint torques and kinematics of a non-amputee while maintaining passively compliant joints, the stiffnesses of which were derived from biological quasi-stiffness measurements. The ankle of the prosthesis consists of a series elastic actuator with a parallel spring and the knee is composed of three different systems that must compliment each other to generate the correct joint behavior: a series elastic actuator, a lockable parallel spring and an energy transfer mechanism. Bench testing of this new prosthesis was completed and demonstrated that the device was able to create the expected torque-angle characteristics for a normal walker under ideal conditions. The experimental trials with four amputees walking on a treadmill to validate the behavior of the prosthesis proved that although the prosthesis could be controlled in a way that allowed all subjects to walk, the accurate timing and kinematic requirements of the output of the device limited the efficacy of using springs with quasi-static stiffnesses. Modification of the control and stiffness of the series springs could provide better performance in future work.

Indexed as

activeanklecompliantkneepoweredprosthesisquasi-stiffnesstransfemoral

Identifiers

PMID30564111
PMCPMC6289037

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.