Improved Exercise Tolerance with Caffeine Is Associated with Modulation of both Peripheral and Central Neural Processes in Human Participants.

Front Nutr · 2018 · PMC5816050 · PMID 29484298

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did not reach statistical significanceno p-value reported

There was a tendency for MEP amplitude to increase after caffeine ingestion ( p = 0.07, η 2 = 0.353, main condition effect, Table 1 ) but the caffeine effect on MEP area (84.7 ± 48.2 vs 14.1 ± 14.5%, p = 0.216) did not reach statistical significance.

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