Fig. 1From: Sex-specific relationships among iron status biomarkers, athletic performance, maturity, and dietary intakes in pre-adolescent and adolescent athletesScatterplots showing the sex separation of the relationships between athletic performance and biomarkers of iron status. Athletic performance was correlated with Hb in males (closed circles), while athletic performance was related to sTfR in females (open circles), both in the direction that was expectedBack to article page