The University of Liege is one of the 7 partners involved in an Erasmus+ project aiming to develop and implement a new pedagogic methodology aiming to tackle the inactivity problem among 11/13 years old youth, as an effective strategy to prevent the problem of physical inactivity among adolescents. The OBLOMOV approach is based on the integration of short periods of High Intensity Intermittent Training (HIIT) in theatre open scenarios. A teaching unit has been adapted to the French speaking Belgian context: "Oblomov: bouger, jouer, créer!". This paper describes the project's implementation in 8 classes of 5-6th grades (176 pupils) and provides an overview of the first results. ; Erasmus+ 'ObLoMoV: Obesity and Low Motility Victims – “physical short shocks” and “theatre short stories” to convert inactive victims into HEPA social actors"