Table 2.

Comparison of data collected prior to intervention.

Variable	RUN N = 22 (four females)	ELLIPTICAL N = 22 (four females)	REST N = 32 (six females)	p
Marathon time (min)	213.59 ± 20.24	216.40 ± 19.63	215.85 ± 21.87	0.869*
Absence AKI at the finish line	11 (50%)	9 (40.9%)	17 (53.1%)	0.341#
Presence AKI at the finish line	11 (50%)	11 (50%)	15 (46.9%)
Grade 1 at the finish line	10 (45.5%)	10 (45.5%)	15 (46.9%)
Grade 2 at the finish line	1 (4.5%)	1 (4.5%)	0 (0.0%)
Presence of hematuria at the finish line	9 (40.9%)	8 (36.4%)	11 (34.4%)	0.886#
Presence of hematuria 48 h after marathon	0 (0%)	1 (4.5%)	2 (6.3%)	0.503#

N, number of subjects; F, female; AKI, acute kidney injury; and p, p-value. Data is presented as mean ± SD for continuous variables, and sample size (percentage) for categorical variables.

^*ANOVA Levene test.

^#Chi Square test.