@article{article_1661069, title={Does Acute Mental Fatigue Affect Service Performance in Recreational Tennis Players?}, journal={CBÜ Beden Eğitimi ve Spor Bilimleri Dergisi}, pages={284–298}, year={2026}, DOI={10.33459/cbubesbd.1661069}, url={https://izlik.org/JA24TN67JA}, author={Önal, Aysu and Kadı, Mustafa Nurullah and Deliceoğlu, Gökhan}, keywords={Mental fatigue, Tennis, Service}, abstract={ The aim of this study was to investigate the effects of mental fatigue (MF) on service performance and recovery time in recreational tennis players. A total of 57 recreational tennis players participated in this research (male= 26, female= 31). This study included four groups: the control group, 0-minute group, 10-minute group, and 20-minute group. Except for the control group, the other three groups used Instagram for 30 minutes before the test . These groups were formed based on the tennis players’ waiting times after MF. The service test was performed immediately in the 0-minute group, after a 10-minute rest period in the 10-minute group, and after a 20-minute rest period in the 20-minute group. A randomized controlled experimental design was used in the study. A dependent-samples t-test was used to compare the means of the first and second services. A repeated-measures ANOVA was used to compare group means. The alpha value was determined to be 0.05. In the 0-minute group, a significant difference was observed between the first- and second-service scores (p < 0.001). A significant difference (p < 0.05) was found between the 0-minute group and all other groups . Spending 30 minutes on social media caused MF, which lowered the service scores of recreational tennis players. In this study, mental recovery began after a 10-minute break from Instagram. According to this study, disconnecting from social media for at least 10 minutes before starting a workout was effective in maintaining performance. }, number={Advanced Online Publication}