Table 4. Biochemical parameters related to oxidative stress and cell damage before and immediately after the race. Values are means (±SD). Reference values are also shown.
Pre-race Post-race Reference values
AST (U·L-1) 25.7 (1.4) 43.0 (3.2) ** 5.0-37
ALT (U·L-1) 21.3 (1.3) 23.9 (2.7) 5.0-41
GGT (U·L-1) 18.3 (1.1) 17.1 (1.4) 11.0-50.0
AP (U·L-1) 67.4 (3.1) 64.2 (3.1) 40.0-129
LDH (U·L-1) 305 (12) 402 (14) ** 240-480
CK (U·L-1) 173 (20) 664 (74) ** 0-195
CK-MB (U·L-1) 2.59 (.4) 23.4 (2.5) ** 6.0-25
CRP (g·L-1)(10-3) .10 (.02) .65 (.04) ** 0-0.5
Cortisol (µg·dL-1) 6.6 (.8) 16.8 (1.0) ** 5.00-25.0
GPx (U·L-1) 68.13 (26.23) 117.70 (29.58) ** 27.5-73.6
GR (U·L-1) 101.57 (36.48) 85.62 (19.50) 33-73
TAS (mol·L-1) (10-3) .26 (.03) .29 (.06) 1.3-1.7
** p < 0.01. AST: aspartate aminotransferase, ALT: alanine aminotransferase, GGT: γ-glutamyl transpeptidase, AP: alkaline phosphatase, LDH: lactate dehydrogenase, CK: creatine kinase (all subunits), CK-MB: creatine kinase, B subunit; CRP: C-reactive protein, GPx: glutathione peroxidase, GR: glutathione reductase, TAS: total antioxidant status.