Static Stretching Acutely Reduces the Ergogenic Effects of Caffeine on Sprint Performance but Not Maximal Ball Velocity in Football Players.

In contrast, the CAF + SS condition yielded only a borderline significant difference compared to CON ( p = 0.043), with a moderate effect size (ES = 0.54).

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However, the marginal significance observed between the CAF + SS and CON conditions suggests that SS may have partially blunted the ergogenic effect of CAF.

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