Water consumption during a school day and children's short-term cognitive performance : the CogniDROP randomized intervention trial
Deutscher übersetzter Titel: | Wasserkonsum während eines Schultages und die kurzzeitige Kognitiveleistung von Kindern : der CogniDROP randomisierter Interventionsversuch |
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Autor: | Drozdowska, Alina; Falkenstein, Michael; Jendrusch, Gernot; Platen, Petra; Lücke, Thomas; Kersting, Mathilde; Jansen, Kathrin |
Erschienen in: | Nutrients |
Veröffentlicht: | 12 (2020), 5, Art.-ID: 1297; [18 S.], Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 2072-6643, 2518386-2 |
DOI: | 10.3390/nu12051297 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU202307006232 |
Quelle: | BISp |
Abstract des Autors
There is still little research examining the relationship between water consumption in school and specific cognitive performance. The aim of this cluster-randomized intervention CogniDROP trial was to investigate the short-term effects of drinking water during the morning on executive functions. The participants were from the 5th and 6th grade of a comprehensive school in Germany (14 classes, n = 250, 61.6% boys). The classes were randomly divided into an intervention group (an education on healthy drinking behavior and a promotion of water consumption) and a control group. A battery of computerized tasks (Switch Task, 2-Back Task, Corsi Block-Tapping Task and Flanker Task) was used to test executive functions. Urine color and thirst were evaluated to check the hydration level. Physical activity over the past 24 h was measured using GT3X ActiGraph. A non-linear relationship was observed between the amount of drinking water and executive performance. Consuming water up to 1000 mL (or up to 50% of Total Water Intake) had benefits during memory tasks. Urine color and number of steps on the study day correlated with water consumed. The results suggest that a water-friendly environment supports school-aged children in adequate water intake resulting in better cognitive performance, especially short-term memory.