Randomized controlled trial2020Open access

Water Consumption during a School Day and Children's Short-Term Cognitive Performance: The CogniDROP Randomized Intervention Trial

Drozdowska A, Falkenstein M, Jendrusch G, Platen P, Luecke T, Kersting M, Jansen K

Nutrients · 26 citations

How it was studied

Design
Randomized controlled trial (indexed by PubMed)
Studied in
People
Main outcome
Health markers and function

Who paid for it

Funding
Independent funding
Nonprofit
Uniscientia Foundation

Based on 1 listed funder(s) and full-text disclosure statement.

Publication

Published
2020-05-02 · Nutrients · vol. 12 · issue 5 · p. 1297
Publisher
Multidisciplinary Digital Publishing Institute
Cited
59 citations · more than 95% of similar papers · 3.9× the field average
Impact
Top 10% most cited in its field
References
49 works
Access
Open access (journal) · CC-BY
Research areas
Neuroscience, Education and Cognitive Function · Paranormal Experiences and Beliefs · Sodium Intake and Health
Keywords
Effects of sleep deprivation on cognitive performance, Randomized controlled trial, Cognition, Thirst, Working memory, Task (project management), Executive functions, Intervention (counseling), Morning, Psychology, Short-term memory, Medicine, Engineering, Psychiatry
MeSH
humans, exercise, memory, short-term, drinking, schools, child, germany, female, male, child nutritional physiological phenomena, executive function

7 authors

From DE

  • Alina Drozdowska · correspondingUniversity Hospitals of the Ruhr-University of Bochum; Ruhr University Bochum
  • Michael Falkenstein
  • Gernot JendruschRuhr University Bochum
  • Petra PlatenRuhr University Bochum
  • Thomas LueckeUniversity Hospitals of the Ruhr-University of Bochum; Ruhr University Bochum
  • Mathilde KerstingUniversity Hospitals of the Ruhr-University of Bochum; Ruhr University Bochum

Abstract

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.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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