Serum Oxidant and Antioxidant Status in Adolescents Undergoing Professional Endurance Sports Training

Table 2

Serum thiobarbituric-acid-reactive substances (TBARSs), xanthine oxidase (XO), catalase (CAT), reduced glutathione (GSH), superoxide dismutase (SOD), and total antioxidant capacity (T-AOC) in adolescent runners, cyclists, and untrained subjects are shown.

	Runners (𝑛=12)	Cyclists (𝑛=12)	Untrained (𝑛=12)
TBARS (nmol·mL^−1)	4.85±0.76	4.81±1.04	4.46±1.11
XO (U·L^−1)	16.1±2.1	19.1±1.4^a, b	16.7±1.3
GSH (mg·L^−1)	15.1±4.5	23.7±9.6^a, b	12.1±2.9
CAT (U·mL^−1)	1.89±0.55^a	2.61±0.92^a, b	0.53±0.36
T-AOC (U·mL^−1)	15.4±1.6	15.6±2.5	14.3±2.2
SOD (U·mL^−1)	56.7±3.3	58.2±2.9	61.8±11.1

^aSignificant at 𝑃<0.05 when compared with untrained group.
^bSignificant at 𝑃<0.05when compared with runners.
Values are mean ± SD.