RT Journal Article T1 The Avengers in action: A gamified-based intermittent programming unit in the Physical Education setting to promote physical activity and its psychological mediators in secondary education students. A1 Becerra-Fernández, Carlos A. A1 Guijarro-Romero, Santiago A1 Mayorga-Vega, Daniel K1 Educación física - Estudio y enseñanza K1 Ejercicio físico K1 Motivación (Psicología) AB The purpose of the present study was to examine the effects of a gamified-based intermittent teaching unit in thePhysical Education setting, combined with behavior modification strategies and following an autonomysupportiveteaching style, on secondary education students’ physical activity (PA) psychological mediatorsand objective weekly PA levels. A sample of 142 secondary education students (50 % females; 14–16 years) fromsix classes were clustered randomly and assigned to Avengers (n = 79) or Control (n = 63) groups. The Avengersgroup students performed a gamified-based intermittent teaching unit using only the first 15 min of each sessiontwice a week for eight weeks. Based on the Trans-Contextual Model of autonomous motivation in education, theintermittent teaching unit was performed by behavior modification strategies such as goal-setting, activitywristband, educational counselling, reminders, diary, motivational messages, and incentives. Students’ selfreportedPA psychological mediators were assessed by validated psychometric questionnaires before and afterthe intervention. Moreover, objective weekly PA was assessed by the students wearing a Xiaomi Mi Band 5activity wristband before and during the last week of the intervention. The Multilevel Linear Model resultsshowed that the gamified-based teaching unit produced a statistically significant improvement in all Avengersgroup students’ PA psychological mediators (p < 0.05; d = 0.29–1.52) and objective weekly PA levels (p < 0.001;d = 1.17). A gamified-based intermittent teaching unit in Physical Education combined with behavior modificationstrategies seems to be effective for enhancing secondary education students’ PA psychological mediatorsand weekly PA levels. PB Elsevier SN 469-0292 YR 2025 FD 2025-05-10 LK https://hdl.handle.net/10630/45150 UL https://hdl.handle.net/10630/45150 LA eng NO Becerra-Fernández, C. A., Guijarro-Romero, S., & Mayorga-Vega, D. (2025). The Avengers in action: A gamified-based intermittent programming unit in the Physical Education setting to promote physical activity and its psychological mediators in secondary education students. Psychology of Sport and Exercise, 79, 102871. https://doi.org/10.1016/j.psychsport.2025.102871. DS RIUMA. Repositorio Institucional de la Universidad de Málaga RD 3 mar 2026