Water balance and habitual caffeine intake among elite male and female water polo players (CROSBI ID 618090)
Prilog sa skupa u zborniku | ostalo | domaća recenzija
Podaci o odgovornosti
Stojnić, Bojan ; Šatalić, Zvonimir ; Kobešćak, Vjekoslav
engleski
Water balance and habitual caffeine intake among elite male and female water polo players
Euhydration is a prerequisite for optimal athletic performance. Aquatic sports have several unique circumstances related to water balance. Cooling effect of water reduces sweat rates, immersion into cool water increases urinary output and inadvertent pool water consumption contributes to water intake. Dehydration during water polo match is probably <1%, however, pre-event euhydration and adequate water intake during land-based preparations remain crucial. If not used purposely with expected ergogenic effect, habitual caffeine intake among athletes is expected to be comparable to non-athletes. There is a paucity of data regarding water intake among water polo players, and the aim of this study was to report estimation of their habitual water and caffeine intake. Subjects were elite male (n=18) and female (n=11) water polo players (15-33 years) and non-athlete peers. Habitual water and caffeine intake were estimated using 3-day food records and water balance was estimated using previously developed and validated Water Balance Questionnaire (WBQ) (Int J Food Sci Nutr 63:138). Hydration status was estimated using self-reported comparison with urine colour chart. Habitual daily water intake estimated with 3-day food records was 2400 and 2237 mL among male and female players, respectively. Water intake expressed per energy intake unit was 0.9-1.2 mL/kcal. Habitual caffeine intake was 1.9 and 1.4 mg/kg and didn’t differ significantly from non-athletes. Average caffeine intake was <180 mg among all groups and coffee was the major contributor (84-96%) to total daily intake. Water balance estimated with WBQ was negative among athletes and positive among non-athletes. Correlation between water balance and caffeine intake wasn’t significant. Correlation between urine colour and water balance was negative, but not statistically significant. In conclusion, negative water balance was observed among elite male and female water polo players. Habitual caffeine intake approaches levels with ergogenic effect, but isn’t higher than among non-athletes.
caffeine; hydration; water balance questionnaire; water intake; water polo
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Podaci o prilogu
174-178.
2014.
objavljeno
Podaci o matičnoj publikaciji
Frece, Jadranka
Zagreb: Hrvatsko društvo prehrambenih tehnologa, biotehnologa i nutricionista
978-953-99725-6-9
Podaci o skupu
8th International Congress of Food Technologists, Biotechnologists and Nutritionists
ostalo
12.10.2014-24.10.2014
Zagreb, Hrvatska