Bio
Pierre Puchaud, Ph.D, Now Full Researcher @INRIA - Bordeaux in AUCTUS
Previously Postdoctoral Researcher @Université de Montréal, Laboratoire de Simulation et Modélisation du Mouvement (S2M)
(he/him)
I am a Inria Research Scientist @Inria Bordeaux, France, previously postdoc at Université of Montréal inside the S2M Lab
working with Mickael Begon on biomechanics and predictive simulation.
Before that, I was a Ph.D student at Ecole Normale Superieure de Rennes,
with Charles Pontonnier and Georges Dumont.
I am passionate about understanding and modeling human movements.
Thanks to my Ph.D in biomechanics, I want to address scientific questions
such as the muscle forces, fatigue modelling, population-based biomechanics, optimal design of assistive devices, and anatomical joint modelling.
EDUCATION 🎓
- Ph.D in Biomechanics, Ecole Normale Supérieure de Rennes, France (2017-2020)
- M.Sc in Biomechanics, Ecole Nationale Supérieure des Arts et Métiers, Paris, France (2016-2017)
- Engineer in Mechanical Engineering, Ecole Nationale Supérieure de Mécanique et des Microtechniques, Besançon, France (2013-2016)
Interests in short
- Biomechanics, Optimization, Motion Simulation, Joint modeling, Muscle modeling, Multibody Dynamics
Main Coding Projects
| Project | Language | Description | GitHub |
|-------------------|----------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------------------------------|
| Bioptim | Python | A Python library for biomechanics optimal control, integrating Acados and Ipopt solvers, with my leadership in theoretical developments and coordination. Published in IEEE Transactions. | GitHub |
| CusToM | MATLAB | Contributed to a MATLAB toolbox for musculoskeletal analyses and model personalization during my PhD, with user customization and modularity. Published in the Journal of Open Source Software. | GitHub |
| BioNC | Python | Initiated and led the development of BioNC for biomechanics dynamics in natural coordinates, facilitating model creation and analysis. | GitHub |
| CocoFEST | Python | Functional electric stimulation optimal control, based on Bioptim framework, addressing dynamic modeling and fatigue behavior. More to come with @kev1co. | GitHub |
| Majority-judgment | Python and Rust | Led an initiative to follow public opinion, according to majority judgment, an alternative voting method, during the French presidential campaign of 2022. I collected data from public opinion polls and presented monthly developments to the association members. More recently, I led the implementation of the voting system in Rust Language. | Link1, Link2 |
Recent Talks
ECCOMAS Thematic Conference on Multibody Dynamics (July 24-28, 2023, Lisbon, Portugal) - ACCEPTED
- Puchaud, P., Dumas, R., & Begon, M. (2023).
Exploring the Benefits of Variational Integrators with Natural Coordinates: A Pendulum Example. Code
- Puchaud, P., Charbonneau, E., & Begon, M. (2023).
Direct multiple shooting and direct collocation optimal control for acrobatics. Code
Canadian Society for Mechanical Engineering (CSME) International Congress 2023 (May 28-31, 2023, Sherbrooke, QC, Canada). - ACCEPTED
-
Puchaud, P., Michaud, B., & Begon, M. (2023).
Simulating Human Motion with Fatigue Dynamics: An Adaptation of Xia's Three-Compartment Model. Code
-
WORKSHOP: Advanced Musculoskeletal Biomechanics with Optimal Control: An Introduction to Bioptim, join the event
Representative Publications
• Puchaud, P., Michaud, B., & Begon, M. (2024).
The interplay of fatigue dynamics and task achievement using optimal control predictive simulation
Code,
🐦Twitter Thread,
Preprint,
Paper accepted in Human Movement Science.
• Puchaud, P., Bailly, F., & Begon, M. (2023).
Direct multiple shooting and direct collocation perform similarly in biomechanical predictive simulations.
Computer Methods in Applied Mechanics and Engineering, 414, 116162.
Code,
Preprint,
Paper,
• Puchaud, P., Charbonneau, E., Michaud, B., & Begon, M. (2023).
Optimality equivalence and computational advantages of free-floating base dynamics compared to full-body dynamics.
Mechanism and Machine Theory, 181, 105164.
Code,
Database,
🐦Twitter Thread,
Preprint,
Paper
• Puchaud, P., Sauret, C., Muller, A., Bideau, N., Dumont, G., Pillet, H., & Pontonnier, C. (2020).
Accuracy and kinematics consistency of marker-based scaling approaches on a lower limb model:
a comparative study with imagery data.
Computer Methods in Biomechanics and Biomedical Engineering, 23(3), 114-125.
Accepted Version
• Hybois, S., Puchaud, P., Bourgain, M., Lombart, A., Bascou, J., Lavaste, F., ... & Sauret, C. (2019).
Comparison of shoulder kinematic chain models and their influence
on kinematics and kinetics in the study of manual wheelchair propulsion.
Medical Engineering & Physics, 69, 153-160.
Accepted Version
Languages and Tools:
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, and a little bit of
and
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Github Statistics:
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