Objective To investigate the causal relationship between junior high school students aggressive behavior,physical exercise and academic performance,so as to provide a reference basis for the development of scientific exercise programs.Methods A longitudinal follow-up study was conducted on 502 junior high school students over a 12-month period from June 2021 to June 2022 using the Buss-Perry Aggressive Questionnaire(BPAQ),Physical Activity Questionnaire for Adolescents(PAQ-A),and test scores as the measurement tools(T1:June 2021,T2:December 2021,T3:June 2022),and a cross-lagged model was constructed to measure the relationship between aggression,physical activity and academic performance.Results At T1,physical exercise had a positive effect on academic performance at T2(β=0.22)and a negative effect on aggressive behavior at T2(β=-0.13),aggressive behavior negatively affected academic performance at T2(β=-0.23),and academic performance had a negative effect on aggressive behavior at T2(β=-0.09).Physical exercise at T2 had a negative effect on aggressive behavior at T3(β=-0.05)and a positive effect on academic performance at T3(β=0.19).Aggressive behavior at T2 negatively influenced academic performance at T3(β=-0.08).Academic performance at T2 negatively influenced aggressive behavior at T3(β=-0.06)(P＜0.05).The results of cross-lagged modeling of junior high school students aggressive behavior,physical exercise and academic performance showed that the model was well fitted(x2/df=8.80,CFI=0.96,NFI=0.95,RFI=0.87,IFI=0.96,TLI=0.88,RMSEA=0.12).The results of multi-group structural equation modeling showed that the differences between the models and the baseline model(CFI=0.95,TU=0.86,RMSEA=0.10,90％CI=0.08-0.11,P＜0.01)were not statistically significant in terms of gender(△CFI＜0.05,P＞0.05).Conclusions Physical exercise negatively predictes aggressive behavior and positively predictes academic performance,and aca-demic performance and aggressive behavior negatively affect each other.A scientific exercise program should be developed to reduce aggression and effectively improve adolescents'academic performance.
AggressionExercise movement techniquesLearningMental healthStudents
维普
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