publications

2025

1. 

   JcvPCA and JsvCRP: A set of metrics to evaluate changes in joint coordination strategies

   Océane Dubois, Agnès Roby-Brami , Ross Parry , and 1 more author

   PLOS ONE, Aug 2025

   Abs PDF

   Characterizing changes in inter-joint coordination presents significant challenges, as it necessitates the examination of relationships between multiple degrees of freedom during movements and their temporal evolution. Existing metrics are inadequate in providing physiologically coherent results that document both the temporal and spatial aspects of inter-joint coordination. In this article, we introduce two novel metrics to enhance the analysis of inter-joint coordination. The first metric, Joint Contribution Variation based on Principal Component Analysis (JcvPCA), evaluates the variation in each joint’s contribution during series of movements. The second metric, Joint Synchronization Variation based on Continuous Relative Phase (JsvCRP), measures the variation in temporal synchronization among joints between two movement datasets. We begin by presenting each metric and explaining their derivation. We then demonstrate the application of these metrics using simulated and experimental datasets involving identical movement tasks performed with distinct coordination strategies. The results show that these metrics can successfully differentiate between unique coordination strategies, providing meaningful insights into joint collaboration during movement. These metrics hold significant potential for fields such as ergonomics and clinical rehabilitation, where a precise understanding of the evolution of inter-joint coordination strategies is crucial. Potential applications include evaluating the effects of upper limb exoskeletons in industrial settings or monitoring the progress of patients undergoing neurological rehabilitation.

2024

1. 

   Short term after-effects of small force fields applied by an upper-limb exoskeleton on inter-joint coordination

   Océane Dubois, Agnès Roby-Brami , Ross Parry , and 1 more author

   In 2024 IEEE International Conference on Robotics and Automation (ICRA 2024) , May 2024

   PDF

2. 

   Identifying individual characteristics influencing post-adaptation of motor behavior in upper-limb exoskeleton users

   Océane Dubois, Agnès Roby-Brami , Ross Parry , and 1 more author

   In 2024 IEEE-RAS International Conference on Humanoid Robots , Nov 2024

   PDF

2023

1. 

   Human Exteroception during Object Handling with an Upper Limb Exoskeleton

   Dorine Arcangeli , Océane Dubois, Agnès Roby-Brami , and 5 more authors

   Sensors, Nov 2023

2. 

   A guide to inter-joint coordination characterization for discrete movements: a comparative study

   Océane Dubois, Agnès Roby-Brami , Ross Parry , and 2 more authors

   Journal of NeuroEngineering and Rehabilitation, Nov 2023

   PDF

3. 

   Does a small perturbation created by an upper-limb exoskeleton impact our coordination in reaching tasks?

   Océane Dubois, Agnès Roby-Brami , Ross Parry , and 1 more author

   In Progress in Motor Control , Nov 2023

2022

1. 

   Intuitive movement-based prosthesis control enables arm amputees to reach naturally in virtual reality

   Effie Segas , Sébastien Mick , Vincent Leconte , and 4 more authors

   eLife, Nov 2022