Table 4. Skeletal muscle and cardiac serum markers.

		V1			V2			V3			V4
	Elite runners	Non elite runners	p	Elite runners	Non elite runners	p	Elite runners	Non elite runners	p	Elite runners	Non elite runners	p
CK (U/l)	220.0±24.5	277.1±59.2	0.381	178.9±21.4	174.5±26.6	0.901	524.9±64.4	531.3±103.3	0.959	1986.7±326.5	1928.4±423.3	0.914
CK-MB (U/l)	23.2±4.8	23.0±5.4	0.983	12.5±10.2	20.0±3.5	0.522	30.1±3.9	25.5±2.3	0.343	62.6±16.5	47.3±6.2	0.421