Comparison of regional patch collection vs. whole body washdown for measuring sweat sodium and potassium loss during exercise

This study compared simultaneous whole body washdown (WBW) and regional skin surface (REG) sweat collections to generate regression equations to predict WBW sweat Na + concentration ([Na + ]) and K + concentration ([K + ]) from single- and five-site REG sweat patch collections. Athletes (10 men, …