The purpose of the present study was to investigate the effect of a course of plyometric exercises along with mindfulness exercises on the mental strength and anaerobic capacity indicators of Iraqi soccer school freshmen. The participants of the research were 60 football players aged between 14 and 16 years old in Baghdad in 2023-2024 who were selected based on the call and randomly divided into four groups of plyometric exercises, mindfulness exercises, plyometric exercises with Mindfulness exercises and control group were divided. Data collection was done using Sheard et al.'s (2009) mental toughness questionnaire. The Shapiro-Wilk test was used to check the normality of the data distribution, and the Levine test was used to test the homogeneity of variances. Analysis of covariance and Bonferroni's post hoc test were used to analyze the findings using SPSS version 24 statistical software. The findings showed that the mental toughness score increased in all three groups compared to the control group, and the comparison between the groups showed that this increase was greater in the plyometric group with mindfulness than in other groups.Also, the findings showed that plyometric exercises and plyometric exercises along with mindfulness had a positive and significant effect on the indicators of anaerobic capacity of Iraqi football school freshmen and there was no difference between these two groups. However, in the group of mindfulness exercises, there was no significant effect on the indicators of anaerobic power. Based on the findings, it can be concluded that plyometric exercises and mindfulness exercises have an effective role in improving the mental strength of Iraqi soccer school freshmen. According to the results, it is recommended that coaches use mindfulness exercises along with plyometric exercises to improve performance and increase the level of mental strength.
