The effect of family support on junior high school students' engagement in physical education—A moderated chain mediation model

(1) Family support significantly and positively predicts junior high school students' level of engagement in physical education; (2) Academic self-concept and achievement goal orientation serve not only as simple mediators in the influence of family support on engagement in physical education, but also transmit this influence through a chain: family support → academic self-concept → achievement goal orientation → engagement in physical education. (3) Academic burnout moderates between academic self-concept and achievement goal orientation.