The aim of the study was to evaluate the influence of exercise and cryogenic temperatures on the conjugated dienes (CD) level and concentration of thiobarbituric acid-reactive substances (TBARS) in the blood plasma and erythrocytes of kayakers. The study was performed on 10 kayakers of the Polish Olympic Team who were training for 31 days. In the first 10 days of training sportsmen additionally had a cryogenic chamber Session. The blood samples were taken before the study and after the 5th and 10th day of training with a cryostimulation and in the 7th, 14th and 21st day of training without cryostimulation. To facilitate an estimation of the influence of cryostimulation on measured parameters, the same kayakers had trained for 14 days, but without cryostimulation (control). The CD level in blood plasma significantly increased after the 10th day, while erythrocytes TBARS concentration increased after the 5th and 10th day of cryostimulation and training. The blood plasma CD level was lower in the 7th day of training without cryostimulation as compared to the 10th day of training with cryostimulation. However, erythrocytes TBARS concentration was lower in the 7th and 14th day of training as compared to the 10th day. Plasma TBARS concentration increased in the 7th and 14th day and decreased in the 21st day. Results are not univocal and require further investigation. The lower concentration of lipid peroxidation markers revealed during experimental studies in comparison to control studies, seems to suggest a profitable antioxidant influence of cryostimulation on oxidative stress.
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