Fig. 1

Absolute values pre- and post-exercise expressed as mean and SEM (ng/mL) for (A) LCN2 (Abcam), (B) hLCN2, (C) C87A, (D) R81E. *p < 0.05 exercise time-point significantly different compared to baseline in linear mixed model analyses. #p < 0.05 exercise time-point significantly different compared to baseline for the same condition in post-hoc analysis. &p < 0.05 exercise time-point significantly different compared to immediately post-exercise for the same condition in post-hoc analysis. No interaction effects were detected in LCN2 or its variants (all p > 0.05).