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Changes in the profile of mood state (POMS) scores among non-anemic male athletes (professional soccer and futsal players) after either placebo or iron supplementation over four weeks of exercise training. Keys: Hatched bars represent 2x standard error of means (SEM) ranges; NS: Non-significant; *: Significant at P ≤ 0.05; #: Trending significant at P ≤ 0.10. Line (Dark): Repeated measure MANCOVA; Line (light) with bent arrows: ANCOVA analysis after 2 and 4 weeks of study duration.
