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. 2017 Feb 28;14:7. doi: 10.1186/s12970-017-0165-z

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© The Author(s). 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 4 — Changes TIBC (a), UIBC (b), ferritin (c) and sTfR (d) levels during exercise tests performed before and after the supplementation (mean ± SD). Note. TIBC = total iron-binding capacity; UIBC = unsaturated iron-binding capacity; sTfR = soluble transferrin receptor - □ SUPL = supplemented group; − PLA = placebo group; B = baseline; Ex = immediately after the exercise; R = after a 1-day recovery; † − significantly different compared to baseline level; # -significantly different compared to post-exercise level

Inline graphic — Changes TIBC (a), UIBC (b), ferritin (c) and sTfR (d) levels during exercise tests performed before and after the supplementation (mean ± SD). Note. TIBC = total iron-binding capacity; UIBC = unsaturated iron-binding capacity; sTfR = soluble transferrin receptor - □ SUPL = supplemented group; − PLA = placebo group; B = baseline; Ex = immediately after the exercise; R = after a 1-day recovery; † − significantly different compared to baseline level; # -significantly different compared to post-exercise level