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. 2019 Nov 15;59(7):2997–3007. doi: 10.1007/s00394-019-02139-6

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© The Authors 2019, corrected publication 2020

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Fig. 3 — Effects of whole purple grape juice on the performance of the running test. a Physical performance (mean ± SD) and b individual results of each athlete’s absolute running time. *Indicates a significant difference (p < 0.05) between the groups analyzed by a paired t test (n = 14). d = small effect size