engleski

Reagent Strips are Reliable and Valid Measure in Defining Status of (de)Hydration Among Male Junior Boxers

The dehydration is a common weight-manipulating technique in boxing, which is already known as a serious health-threatening behavior. Investigations confirmed urine-specific-gravity (USG) as the most reliable and applicable indicator of the body hydration status. In this study we have investigated reliability and concurrent validity of the reagent strips Medi – Test Combi 10 (RSC) as a method for the evaluation of hydration in elite junior boxers. As a gold standard refractometric measurement (RF) is used. The sample of subjects comprised 14 male junior boxers from Croatia and Germany (all national team members ; 16, 57±1, 15 years ; 67, 33±14, 97 kg and 176, 14±7, 98 cm). The RSC measurement was done by two examiners, while the urine sample was simultaneously used for RF analysis. The Sperman range correlations between evaluators was high for three variable BLR, pH SPU of the 10 parameters evidenced by RSC, namely RSC-SPU (r = 0.92). Since RSC-SPU was highly correlated to RF (0.85 and 0.84 for first and second examiner, respectively), this study confirmed appropriate concurrent validity of the RSC-SPU measurement in evidencing the dehydration-status of the junior boxing athletes.

hydration status; body weight manipulation; weight category; concurrent validity; golden standard

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