Research Article

The Role of Motivational Self-Talk in Attenuating the Effects of Mental Fatigue on Repeated Sprint Performance

Volume: 9 Number: 2026 September 20, 2026
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The Role of Motivational Self-Talk in Attenuating the Effects of Mental Fatigue on Repeated Sprint Performance

Abstract

Purpose: This study examined the effects of mental fatigue on repeated sprint performance and whether motivational self-talk could attenuate these effects.

Method: Sixteen physically active male university students participated in this randomized crossover study. Participants completed three conditions: control, mental fatigue, and mental fatigue combined with motivational self-talk. Mental fatigue was induced with a 15-min computer-based Stroop task; its effectiveness was verified with visual analogue scale ratings taken before and after the task. Anaerobic performance was assessed using the Running-Based Anaerobic Sprint Test (RAST). Data were analyzed with Friedman tests, Wilcoxon signed-rank tests, and one-way and two-way (3 protocols × 6 sprints) repeated measures ANOVAs.

Results: Subjective mental fatigue increased significantly after the Stroop task in both conditions (p<0.001; dz=1.49–1.70). Mean sprint time differed significantly across conditions (χ²(2)=21.50, p<0.001). Mental fatigue increased sprint time relative to control (p<0.001, r=0.58), whereas motivational self-talk improved sprint performance relative to mental fatigue (p<0.001, r=0.61); self-talk did not differ significantly from control (adjusted p=0.312), although equivalence was not tested. For power output, significant main effects of protocol and sprint and a significant Protocol × Sprint interaction emerged (F(4.652, 69.774)=4.368, p=0.002, η²p=0.226); mean power remained significantly lower in the self-talk than the control condition (p=0.032). A significant protocol effect was also found for the fatigue index (F(1.475, 22.119)=18.165, p<0.001, η²p=0.548).

Conclusion: Mental fatigue negatively affects repeated sprint performance and anaerobic power in physically active individuals. Motivational self-talk appears useful for partially attenuating these effects; however, performance was not fully restored to control levels, and the design does not permit interpretation as statistical moderation.

Keywords

Supporting Institution

The Scientific and Technological Research Council of Türkiye (TÜBİTAK)

Project Number

1919B012467583

Ethical Statement

This study was approved by the Non-Interventional Clinical Research Ethics Committee (Approval No: 2025/7711) and conducted in accordance with the Declaration of Helsinki.

Thanks

The authors would like to thank TÜBİTAK for supporting this study through the 2209-A University Students Research Projects Support Program (Project No: 1919B012467583).

References

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Details

Primary Language

English

Subjects

Sports Science and Exercise (Other)

Journal Section

Research Article

Publication Date

September 20, 2026

Submission Date

June 20, 2026

Acceptance Date

September 8, 2026

Published in Issue

Year 2026 Volume: 9 Number: 2026

APA
Bozkurt, O., Levent, K., Yıldırım, F., & Eken, Ö. (2026). The Role of Motivational Self-Talk in Attenuating the Effects of Mental Fatigue on Repeated Sprint Performance. Çanakkale Onsekiz Mart Üniversitesi Spor Bilimleri Dergisi, 9(2026), 827-846. https://izlik.org/JA77LS39FE
AMA
1.Bozkurt O, Levent K, Yıldırım F, Eken Ö. The Role of Motivational Self-Talk in Attenuating the Effects of Mental Fatigue on Repeated Sprint Performance. Çanakkale Onsekiz Mart Üniversitesi Spor Bilimleri Dergisi. 2026;9(2026):827-846. https://izlik.org/JA77LS39FE
Chicago
Bozkurt, Oğuzhan, Kardelen Levent, Furkan Yıldırım, and Özgür Eken. 2026. “The Role of Motivational Self-Talk in Attenuating the Effects of Mental Fatigue on Repeated Sprint Performance”. Çanakkale Onsekiz Mart Üniversitesi Spor Bilimleri Dergisi 9 (2026): 827-46. https://izlik.org/JA77LS39FE.
EndNote
Bozkurt O, Levent K, Yıldırım F, Eken Ö (September 1, 2026) The Role of Motivational Self-Talk in Attenuating the Effects of Mental Fatigue on Repeated Sprint Performance. Çanakkale Onsekiz Mart Üniversitesi Spor Bilimleri Dergisi 9 2026 827–846.
IEEE
[1]O. Bozkurt, K. Levent, F. Yıldırım, and Ö. Eken, “The Role of Motivational Self-Talk in Attenuating the Effects of Mental Fatigue on Repeated Sprint Performance”, Çanakkale Onsekiz Mart Üniversitesi Spor Bilimleri Dergisi, vol. 9, no. 2026, pp. 827–846, Sept. 2026, [Online]. Available: https://izlik.org/JA77LS39FE
ISNAD
Bozkurt, Oğuzhan - Levent, Kardelen - Yıldırım, Furkan - Eken, Özgür. “The Role of Motivational Self-Talk in Attenuating the Effects of Mental Fatigue on Repeated Sprint Performance”. Çanakkale Onsekiz Mart Üniversitesi Spor Bilimleri Dergisi 9/2026 (September 1, 2026): 827-846. https://izlik.org/JA77LS39FE.
JAMA
1.Bozkurt O, Levent K, Yıldırım F, Eken Ö. The Role of Motivational Self-Talk in Attenuating the Effects of Mental Fatigue on Repeated Sprint Performance. Çanakkale Onsekiz Mart Üniversitesi Spor Bilimleri Dergisi. 2026;9:827–846.
MLA
Bozkurt, Oğuzhan, et al. “The Role of Motivational Self-Talk in Attenuating the Effects of Mental Fatigue on Repeated Sprint Performance”. Çanakkale Onsekiz Mart Üniversitesi Spor Bilimleri Dergisi, vol. 9, no. 2026, Sept. 2026, pp. 827-46, https://izlik.org/JA77LS39FE.
Vancouver
1.Oğuzhan Bozkurt, Kardelen Levent, Furkan Yıldırım, Özgür Eken. The Role of Motivational Self-Talk in Attenuating the Effects of Mental Fatigue on Repeated Sprint Performance. Çanakkale Onsekiz Mart Üniversitesi Spor Bilimleri Dergisi [Internet]. 2026 Sep. 1;9(2026):827-46. Available from: https://izlik.org/JA77LS39FE

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Kind regards,

Editor
Prof. Dr. Hürmüz KOÇ