ArticleBMC sports science, medicine & rehabilitation2025
Effect of caffeine on attack decision-making in trained beach volleyball players following prolonged cognitive effort induced by social media use: a randomized, single-blind, crossover pilot study.
Article in BMC sports science, medicine & rehabilitation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundMental fatigue is a psychobiological state characterized by a feeling of tiredness or lack of energy after performing cognitive activities. Recently, studies have found that prolonged use of social media can cause mental fatigue and consequently impair decision-making performance in athletes. On the other hand, caffeine may counteract mental fatigue by antagonizing adenosine. Therefore, this study aimed to analyze the effect of caffeine on the attack decision-making skill of trained beach volleyball players after prolonged cognitive effort by using social media on smartphones.
methodsTwelve trained young male beach volleyball players (Age
resultsThe subjective perception of mental fatigue increased only in the CAF condition (p = 0.018), and Stroop task performance was not different for all variables analyzed in both conditions (p > 0.05). Finally, the decision-making skill was not different between situations in attack (p = 0.890; d = 0.054) or counterattack (p = 0.617; d = 0.141).
conclusionsAt similar levels of mental fatigue, low-dose caffeine was not superior to placebo in improving attack decision-making. Considering the limitations of time and sample size, the results must be interpreted with caution. TRIAL REGISTRATION NUMBER: Brazilian Clinical Trial Register (RBR-2yyd8jb). Registered 01 January 2024 (Retrospectively registered).
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