doi:10.1080/00220973.2019.1681349engAbós, ÁngelSevil-Serrano, JavierJulián-Clemente, José AntonioGenerelo, EduardoGarcía-González, LuisImproving teachers' work-related outcomes through a group-based physical activity intervention during leisure-timeART-2021-117668Grounded in self-determination theory, this study examines the effects of a leisure-time physical activity (LTPA) intervention with work colleagues on work-related outcomes of relatedness satisfaction, engagement factors, sat- isfaction, and burnout subtypes. Fifty-seven teachers (Mage¼46.81±7.90), from two secondary schools randomized as an experimental (n¼22) or control (n¼35) group, participated in the study. Thirty-two sessions based on playful, strength, aerobic, and back pain prevention activities were per- formed two days per week throughout one academic year. The experimen- tal group teachers reported significant improvements in relatedness satisfaction, vigor, absorption, and satisfaction at work compared to the control group teachers and their own baseline scores. Results highlight that two weekly sessions of LTPA with work colleagues can lead to positive work-related outcomes among teachers.2021http://zaguan.unizar.es/record/10150610.1080/00220973.2019.1681349http://zaguan.unizar.es/record/101506oai:zaguan.unizar.es:101506info:eu-repo/grantAgreement/ES/MINECO/EDU2013-42048-RJOURNAL OF EXPERIMENTAL EDUCATION 89, 2 (2021), 306-325 [43 pp.]by-nc-ndhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccess