Because data did not pass normality testing,
Spearman correlation analyses were used to examine
the associations between blood and urinary parameters
and pre-race characteristics within the hyponatremic
group and the normonatremic group and all finishers.
Paired sample t-tests or the Wilcoxon signed-rank tests
(within different races and within genders, within all finishers,
the normonatremic and the hyponatremic group)
were used to compare parameters before and after the
race as appropriate and to compare continuous measures