Table 4.

Changes of myoglobin [ng/ml] concentration in study participants sera

		SE	SC	OE	OC	p (between groups)
Test I	1 h before	26.13 ± 10.08	25.21 ± 6.48	18.65 ± 8.19	25.63 ± 8.22	0.295
	1 h after	143.0 ± 78.40	196.2 ± 111.3	126.6 ± 60.2	129.8 ± 51.41	0.544
	24 h after	34.45 ± 10.02	35.22 ± 20.06	31.95 ± 17.17	46.96 ± 18.48	0.122
	p (inside.groups)	0.000	0.009	0.002	0.001
Test II	1 h before	25.52 ± 18.73	34.29 ± 12.32	45.24 ± 27.35	25.48 ± 11.02	0.180
	1 h after	71.65 ± 43.45	133.5 ± 53.66	75.33 ± 47.03	141.8 ± 85.32	0.099
	24 h after	45.91 ± 31.71	33.46 ± 17.71	21.42 ± 13.48	57.95 ± 51.27	0.874
	p (inside.groups)	0.001	0.011	0.004	0.006
p (Test I vs. Test II)	1 h before	0.575	0,116	0.398	1.000
	1 h after	0.047	0,046	0.091	0.612
	24 h after	0.646	0,753	0.310	0.499

Results are shown as means ± SEM (SE – experimental group with suboptimal level of vitamin D, SC – control group with suboptimal level of vitamin D, OE – experimental group with optimal lever of vitamin D, OC – control group with optimal level of vitamin D); p (between groups) Kruskal-Wallis test; p (inside groups) Friedman test for dependent means; p (Test I vs Test II) Wilcoxon test