RecruitingClinical trialNormative Data for Sweating Rate, Sweat Sodium Concentration and Sweat Sodium Loss in Female AthleteThe main objectives are to determine sweat sodium concentration \[Na+\], whole body sweat rate (WBSR) and rate of sweat sodium loss (RSSL) in female athletes aged 13 and above during their normal planned training session across various sports (basketball, soccer, volleyball, cheer, flag football and softball).