The effect of mineral-based alkaline water on hydration status and the metabolic response to short-term anaerobic exercise
Deutscher übersetzter Titel: | Die Wirkung von mineral-basiertem alkalischem Wasser auf den Hydrationsstatus und die metabolische Reaktion auf kurzzeitiges anaerobes Training |
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Autor: | Chycki, Jakub; Zając, Tomasz; Maszczyk, Adam; Kurylas, Anna |
Erschienen in: | Biology of sport |
Veröffentlicht: | 34 (2017), 3, S. 255-261, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0860-021X, 2083-1862 |
DOI: | 10.5114/biolsport.2017.66003 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201803001688 |
Quelle: | BISp |
Abstract des Autors
Previously it was demonstrated that mineralization and alkalization properties of mineral water are important factors influencing acid-base balance and hydration in athletes. The purpose of this study was to investigate the effects of drinking different types of water on urine pH, specific urine gravity, and post-exercise lactate utilization in response to strenuous exercise. Thirty-six male soccer players were divided into three intervention groups, consuming around 4.0 l/day of different types of water for 7 days: HM (n=12; highly mineralized water), LM (n=12; low mineralized water), and CON (n=12; table water). The athletes performed an exercise protocol on two occasions (before and after intervention). The exercise protocol consisted of 5 bouts of intensive 60-s (120% VO2max) cycling separated by 60 s of passive rest. Body composition, urinalysis and lactate concentration were evaluated – before (t0), immediately after (t1), 5’ (t2), and 30’ (t3) after exercise. Total body water and its active transport (TBW – total body water / ICW – intracellular water / ECW – extracellular water) showed no significant differences in all groups, at both occasions. In the post-hydration state we found a significant decrease of specific urine gravity in HM (1021+/-4.2 vs 1015+/-3.8 g/L) and LM (1022+/-3.1 vs 1008+/-4.2 g/L). We also found a significant increase of pH and lactate utilization rate in LM. In conclusion, the athletes hydrated with alkaline, low mineralized water demonstrated favourable changes in hydration status in response to high-intensity interval exercise with a significant decrease of specific urine gravity, increased urine pH and more efficient utilization of lactate after supramaximal exercise.