Monitoring change of urine specific gravity levels of the wrestlers in an official wrestling tournament

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Ferhat Guder


Combat Sports, Dehydration, United World Wrestling, Urine Specific Gravity, Weight Loss


Study Objectives: Wrestling is a weight sport with a weight classification and wrestlers is performed
weight loss frequently before the wrestling competitions and they exposed dehydration. In this context, the
aim of this study was to monitor the change in the urine specific gravity (USG) of wrestlers in an official wrestling tournament. Thirty-six wrestlers competing in an official wrestling tournament were included in the
study. Methods: Bioelectric impedance analyzer and refractometer were used to determine the change of body
weights and the USG levels of the wrestlers between the weigh-in and the competition times. Shapiro-Wilk
test was used for the normality test of the obtained data. Wilcoxon Signed-Rank test was used to analyze
non-normally distributed data. Results: According to the results of this study, it was determined that there
was no difference in the body weights of the wrestlers between the weigh-in and the competition times,
whereas there was a difference in the USG levels. Accordingly, although USG levels decreased, it could not be
reduced to the reference range between the weigh-in and the competition times. Conclusion: These results indicate that the lose body weight before the competition is regained between the weigh-in and the competition times, whereas dehydration in the USG levels continues in the wrestlers.


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