Fig. 2
From: Normative data on regional sweat-sodium concentrations of professional male team-sport athletes
Sweat-sodium concentrations for professional soccer (n = 270), rugby (n = 180), American football (n = 60), baseball (n = 133) and basketball (n = 52). Individual means of sweat-sodium concentrations in American football, baseball and basketball were significantly greater than the individual means of soccer and rugby, but with no differences within the two sub-groups. * Significantly greater than soccer and rugby (p < 0.05)