Table 2.

Data for indices of biological markers of cardiac damage pre-, post-, 6 hr post-marathon.

	Pre-marathon	Post-marathon	6 h Post-marathon	P value
cTnI (μg/L)	0.00	0.04 ± 0.008*	0.075 ± 0.024*	P = 0.002
NTproBNP (ng/L)	37.4 ± 5.9	59.3 ± 10.5*	68.1 ± 11*	P = 0.007

cTnI, cardiac troponin-I; NTproBNP, N terminal pro B type natriuretic peptide

*Significantly different from pre-marathon values (p < 0.05). Values are expressed as mean (± SD).