Abstract:

The purpose of this study, threshold endurance training in swimming is the evaluation of the resulting dehydration and its effects on performance. 12 male swimmers participated in study. 6 athletes took liquid fortification and 6 athletes continued to practice without liquid fortification and the same protocol were repeated after 48hours. Tanita, urine specific weight, heart rate(HR), blood pressure(BP), body temperature, swimming performance measurements were applied. T-test was used for the difference between the pre-test and post-test values ​​in the group, and t-test analysis was used for the differences between the groups in the independent groups. In the pre-and post-training findings of the liquid-filled training of the players; there was a significant difference (p<0.05) between body temperature, fluid percentage, percentage of body fat and non-fat weight, HR, diastolic BP, and 100m swimming. Pre-and post-training findings of the players without fluid reinforcement; there was significant difference (p<0.05) between BMI, urine density, total body fluid percentage, body fat percentage, percent FFM, HR, 100m swimming. There was no significant difference (p>0.05) between the pretension values ​​of the liquids and liquids without, there was a significant difference in the urine concentrations between the liquid and the non-liquid(p<0.05). Consequently, dehydration was observed in the training without liquid reinforcement.

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