Former student of ENS de Rennes (Sports Sciences and Physical Education department) then associate professor of PE at ENS de Lyon, Matthieu Quidu is now a lecturer in STAPS (Sciences and techniques of physical and sporting activities ) at the University of Lyon 1. Researcher within the L-ViS (Laboratory on Vulnerabilities and Innovation in Sport), he teaches at the INSPE in Lyon. His sociological and philosophical research focuses on innovative sporting trends, whether these concern the use of self-quantification devices (self-tracking) or the rise of sobriety and voluntary simplicity in the field of physical leisure. .https://www.linkedin.com/in/matthieu-quidu-33a555205/