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Water intake reverses dehydration associated impaired executive function in healthy young women
Stachenfeld NS, Leone CA, Mitchell ES, Freese E, Harkness L
Physiology & behavior · 28 citas
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Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiado por la industria
- Empresa
- PepsiCo
Según 1 financiador declarado.
Publicación
- Publicado
- 2017-12-23 · Physiol Behav · vol. 185 · págs. 103–111
- Editorial
- Elsevier BV
- Citado
- 46 citas · más que el 88% de estudios similares · 2.2× el promedio de su campo
- Referencias
- 35 trabajos
- Acceso
- De pago
- Áreas de investigación
- Thermoregulation and physiological responses · Electrolyte and hormonal disorders · Nutrition, Health and Food Behavior
- Palabras clave
- dehydration, water intake, fluid intake, executive function, working memory, visual memory, urine specific gravity, young women, cognitive function, set-shifting, hydration status, physical activity, healthy young women, healthy young men, healthy older adults, healthy older men, healthy children
- MeSH
- urine, humans, dehydration, blood chemical analysis, cross-over studies, motor activity, affect, memory, pattern recognition, visual, attention, drinking, adolescent, adult, female, young adult, executive function, drinking water
5 autores
- Nina S. Stachenfeld🇺🇸 · autor de correspondenciaYale University; John B. Pierce Laboratory
- Cheryl A. Leone🇺🇸John B. Pierce Laboratory
- Ellen Siobhan Mitchell
- Eric C. Freese
- Laura Harkness
Resumen
El texto original del estudio, en el idioma en que se publicó.
Introduction
Healthy women do not always consume Recommended Daily Levels of fluid intake ad libitum. We hypothesized that 1) women lose≥1.0% BW during daily activities, 2) that mild body water loss impairs memory and executive function, 3) water intake to recommended daily levels will improve cognitive function.
Methods
We tested 12 women (26±5yr, 22.5±2.6kg/m2 BMI). Session 1 was a control (CON) session, during which subjects monitored their food and fluid intake (diary) and activity (Fitbit®). The next two sessions were applied in balanced order: dehydration (DEH) session, where subjects minimized drinking, and a euhydration (EUH) session, where subjects drank Recommended Daily Levels of fluid for their age and sex, or 2500ml/24h. We compared emotion, sensory perception and cognition with computer based visual analog tests and computer based cognitive tasks (Cogstate) at 5PM, i.e. baseline (BL) on the evening prior to the session, and at 7AM, 12PM, and 5PM during the session.
Results
Urine specific gravity (USG) was similar at BL across conditions (CON 1.013±0.002, DEH 1.015±0.002, EUH 1.014±0.002) and increased with dehydration (CON 1.011±0.003, DEH 1.021±0.002, EUH 1.010±0.002, P<0.05) by 5PM of the session. Uncontrolled fluid intake and physical activity were similar across sessions. The water challenges did not impact Detection, Identification, One-Card Learning, but EUH improved visual and working memory (Groton Maze Learning Test) errors: CON 40.1±11.1, DEH 40.5±10.1, EUH 33.9±10.9, P<0.05. Executive function [Set Shifting (SETS)] also improved under EUH, errors: BL 22.5±12.7 vs. 5PM 17.8±6.2, P<0.05.
Conclusions
Mild dehydration caused deficits in visual and working memory and executive function in healthy young women. These deficits were reversed by drinking water to the European Food Safety Authority and Institute of Medicine requirements of 2.5l/day for adult women.
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