Table 2 Results of the Mann–Whitney U test for the six markers in the paired group comparisons, indicating the Mann–Whitney U value and the p value.

	MYO	CK	LDH	TnI	TnT	ACT
Group A–group B	12.00–0.001	0.001–0.001	63.50–0.001	180.0–0.005	326.0*–0.93*	9.00–0.001
Group A–group C	7.00–0.001	8.00–0.001	165.0–0.001	461.0–0.001	339.0–0.001	0.001–0.001
Group A–group D	3.00–0.001	4.00–0.001	0.001–0.001	365.0*–0.021*	106.0–0.001	0.001–0.001
Group B–group C	448.5*–0.672*	218.0–0.001	446.0*–0.647*	464.0*–0.814*	216.0–0.001	199.0–0.001
Group B–group D	172.0–0.004	176.5–0.005	0.001–0.001	326.5*–0.948*	76.00–0.001	0.001–0.001
Group C–group D	415.5–0.001	214.5–0.001	2.00–0.001	781.0*–0.914*	583.5–0.009	233.0–0.001

ACT, actin; CK, creatine kinase; LDH, lactate dehydrogenase; MYO, myoglobin; TnI, troponin I; TnT, troponin T.

Differences with p<0.01 were considered significant.

*Differences are not significant.