Práxedes, Albadel Villar, FernandoMoreno, AlbertoGil-Arias, AlexanderDavids, Keith2024-12-302024-12-302019-02-14Práxedes, A., del Villar, F., Moreno, A., Gil-Arias. A, & Davids, K. (2019). Effects of a Nonlinear Pedagogy intervention program on the emergent tactical behaviors of youth footballers. Physical Education and Sport Pedagogy, 24 (4), 323-343. https://doi.org/10.1080/17408989.2019.15806891740-8989 (print)1742-5786 (online)https://hdl.handle.net/10115/49177Purpose: This study analysed the effects of a training intervention programme using principles of Non-Linear Pedagogy (NLP) on the decision making (DM) and performance behaviours (P) of youth footballers. Method: 19 footballers (U12 yrs) participated in 14 training sessions, spread over three phases: Pre-intervention, Intervention, Retention. The intervention was based on Small-Sided and Conditioned Games. We assessed progress during the intervention phase at two different points: intermediate and final. The GPET instrument was used to analyse the DM and P during the completion of 3208 passes in the intervention. Results: Results shown significant improvements in the DM and P after the intermediate and final points of the acquisition phase. Moreover, significantly higher values were also obtained in both variables in the retention, compared to the pre-intervention phase. Conclusion: Results indicated that the NLP intervention programme was effective in improving both aspects of team games performance in youth players, with effects consolidated over timeenSmall-sided and conditioned games; learning design; intervention; decisionmaking performance; youth footballArticle10.1080/17408989.2019.1580689info:eu-repo/semantics/closedAccess