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Related Experiment Video

Updated: May 25, 2026

Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion
08:19

Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion

Published on: January 15, 2016

Oscillator-based walking assistance: a model-free approach.

Renaud Ronsse1, Bram Koopman, Nicola Vitiello

  • 1Biorobotics Laboratory; Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland. renaud.ronsse@uclouvain.be

IEEE ... International Conference on Rehabilitation Robotics : [Proceedings]
|January 26, 2012
PubMed
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This study introduces adaptive oscillator-based assistance for walking exoskeletons. The system reduces user energy expenditure and alters walking kinematics, showing promise for rehabilitation protocols.

Area of Science:

  • Robotics
  • Biomechanics
  • Rehabilitation Engineering

Background:

  • Motor primitives offer a framework for designing human-assistance systems.
  • Adaptive oscillators can predict future joint positions for proactive assistance.

Purpose of the Study:

  • To extend oscillator-based assistance to walking using a compliant lower-limb exoskeleton.
  • To evaluate the impact of this assistance on metabolic energy expenditure and walking kinematics.

Main Methods:

  • An adaptive oscillator was employed to predict future joint angles during walking.
  • A force field in the exoskeleton attracted joints towards predicted future positions.
  • Metabolic energy expenditure and kinematic data were collected with and without assistance.

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Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
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Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

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Last Updated: May 25, 2026

Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion
08:19

Asymmetric Walkway: A Novel Behavioral Assay for Studying Asymmetric Locomotion

Published on: January 15, 2016

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior
10:52

Simulation of Human-induced Vibrations Based on the Characterized In-field Pedestrian Behavior

Published on: April 13, 2016

Main Results:

  • A significant decrease in metabolic energy expenditure was observed with assistance.
  • Assistance did not fully compensate for exoskeleton transparency burden.
  • Participants exhibited faster cadence and ampler movements when using the assistance.

Conclusions:

  • Adaptive oscillator-based assistance is relevant for designing effective exoskeleton protocols.
  • The findings support the use of motor primitives for developing novel rehabilitation strategies.
  • This approach paves the way for advanced rehabilitation protocols leveraging predictive assistance.