Affiliations: [a] Faculty of Sport Sciences, Sakarya University, Sakarya, Turkey | [b] School of Physical Education and Sports, Mersin University, Mersin, Turkey | [c] Department of Biochemistry, Faculty of Medicine, Afyon Kocatepe University, Afyonkarahisar, Turkey | [d] Department of Biostatistics, Faculty of Veterinary, Afyon Kocatepe University, Afyonkarahisar, Turkey | [e] Department of Physiology, Faculty of Veterinary, Afyon Kocatepe University, Afyonkarahisar, Turkey
Correspondence:
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Corresponding author: Ozkan Isik, Faculty of Sport Sciences, Sakarya University, 54187, Serdivan, Sakarya, Turkey. Tel.: +90 264 295 66 41; Fax: +90 264 295 66 42; E-mail: ozkanisik1986@gmail.com.
Abstract: BACKGROUND: Weight loss practice before competitions is a common method in weight sports. OBJECTIVE: The current study aimed to monitor Plasma Osmolarity (POsm), skeletal muscle damage and inflammation levels induced by pre-competition dehydration among elite wrestlers. METHODS: Twenty-four male elite wrestlers participated in the study. A survey information form that assessed pre-competition weight loss practices were administered to the wrestlers. Additionally, Total Creatine Kinase (CK), Lactate Dehydrogenase (LDH), Aspartate Aminotransferase (AST), Alanine Aminotransferase (ALT), C-reactive Protein (C-RP) and POsm, analyses were evaluated by a specialist at the biochemical laboratory. POsm level for euhydration is ⩽ 290 mOsm/L. But if POsm level is > 290, then dehydration occurs. The wrestlers were divided into two groups according to POsm levels as weight loss and non-weight loss group. RESULTS: There were differences in the pre and post-test POsm levels of weight loss group. Similarly; it was identified that there were also statistically significant differences in terms of ALT, LDH and CK levels of weight loss group between pre and post-test. CONCLUSIONS: It was seen that POsm and levels of all indicators of skeletal muscle damage were higher than non-weight loss group. However, it was found that there were not any differences in terms of C-RP levels.
Keywords: Dehydration, inflammation, plasma osmolarity, skeletal muscle damage, weight loss
