The impact of supplementation with pomegranate fruit (Punica granatum L.) juice on selected antioxidant parameters and markers of iron metabolism in rowers

Figures & data

Table 1 Basic characteristics of the study groups (mean ± standard deviation)

Table 2 Training schedules during the weeks preceding blood samples before (Trial I) and after (Trial II) the supplementation

Table 3 Changes in a 2000 m rowing ergometer performance before and after the supplementation

Fig. 1 Data represents the mean (SD) values for total antioxidant capacity (TAC) (a) and uric acid (UA) (b) levels during exercise tests performed before and after supplementation (mean ± SD). Note: TAC = total antioxidant capacity; UA = uric acid;

- 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 PLA; # - significantly different compared to post-exercise level

Fig. 2 Data represents the mean (SD) values for hepcidin (a), myoglobin (b) and iron (Fe) (c) levels during exercise tests performed before and after the supplementation (mean ± SD). Note: Fe = iron;

- 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

Fig. 3 Data represents the mean (SD) values for iron binding capacity (UIBC) (a), total iron binding capacity (TIBC) (b), ferritin (c) and soluble transferrin receptors (sTfR) (d) levels during exercise tests performed before and after the supplementation (mean ± SD). Note: UIBC = unsaturated iron binding capacity; TIBC = total iron binding capacity; sTfR = soluble transferrin receptors;

- 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 PLA

Fig. 4 Data represents the mean (SD) values for interleukin 6 (IL-6) levels during exercise tests performed before and after the supplementation (mean ± SD). Note: IL 6 = interleukin 6;

- 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

Fig. 5 Data represents the mean (SD) values for creatine kinase (CK) levels during exercise tests performed before and after the supplementation (mean ± SD). Note: CK = creatine kinase;

- SUPL = supplemented group;

- PLA = placebo group; B = baseline; Ex = immediately after the exercise; R = after a 1 – day recovery