Physical Exercise Combined with Whole-Body Cryotherapy in Evaluating the Level of Lipid Peroxidation Products and Other Oxidant Stress Indicators in Kayakers

Table 2

Oxidative stress indicators and the concentration of urea, cortisol, and testosterone in the blood serum of kayakers from the Polish National Team during a 19-day physical activity including WBC sessions twice a day for the first 10 days.

	Baseline (Day 0)	Day 5	Day 11	Day 19
MDA [10^−2 nmol/mL]	26.3 ± 2.5	27.7 ± 2.4	26.0 ± 1.8	25.5 ± 1.8
CD [10^−1 Abs./mL]	4.6 ± 2.5	4.6 ± 1.2	4.4 ± 1.0	3.6 ± 0.8
TBARS [10^−2 nmol MDA/mL]	50.3 ± 5.0	51.2 ± 7.0	45.9 ± 5.3	42.3 ± 4.4^aabb
Protein carbonyls [μmol/mg]	538.4 ± 23.3	534.8 ± 136.1	535.4 ± 36.2	535.8 ± 25.5
Vit. E [𝜇g/L]	17.7 ± 8.2	14.6 ± 3.7	13.6 ± 3.3	13.1 ± 2.9
GPx [U/L]	225.9 ± 26.4	191.6 ± 27.8^a	212.9 ± 42.6	229.4 ± 30.3^b
TAC [μM CRE]	813.6 ± 67.7	769.6 ± 78.4	774.1 ± 102.0	845.3 ± 114.0
Urea [mg/dL]	33.1 ± 6.3	39.9 ± 6.3^a	45.2 ± 5.5^aa	37.2 ± 8.4^c
Cortisol [nmol/L]	628.2 ± 62.9	661.3 ± 83.1	688.7 ± 73.4	638.4 ± 109.2
Testosterone [nmol/L]	23.8 ± 5.9	22.8 ± 4.9	24.4 ± 4.7	24.9 ± 5.6

The results are expressed as the mean ± standard deviation; ^astatistically significant difference versus baseline (^a𝑃<0.05, ^aa𝑃<0.01), ^bstatistically significant versus Day 5th (^b𝑃<0.05, ^bb𝑃<0.01), and ^cstatistically significant versus Day 11 (𝑃<0.05).