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

Table 1

Physical characteristics of study subjects, training years, and training volume of runners and cyclists are shown.

	Runners (𝑛=12)	Cyclists (𝑛=12)	Untrained (𝑛=12)
Age (yrs)	15.5±1.3	15.3±0.7	15.9±0.5
Tanner Stage	3.25±0.87	3.08±0.29	2.75±0.45
Weight (kg)	57.7±6.3^a	70.8±4.3^a, b	65.0±8.9
Height (cm)	170.9±5.4^a	179.3±4.1^a, b	177.7±5.6
Body fat (%)	9.90±2.3^a	11.3±1.9^a	15.8±7.0
BMI	19.7±1.2	22.0±1.3^b	20.6±2.6
Years of training	2.2±0.9	2.4±0.6	—
Training hours/day	3	5	—
Training days/week	6.5	6	—
Energy costs for training (Kcal·d^−1)	1,426.0±654.1	2544.9±155.8^b	—

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