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Fluctuation of Water Intake and of Hydration Indices during the Day in a Sample of Healthy Greek Adults
Mild dehydration may occur during specific periods of the day because of poor hydration habits and/or limited access to a variety of beverages or foods, for example, in work environments. Measurement of hydration indices in spot or in 24 h urine samples may mask mild dehydration in specific periods...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521245/ https://www.ncbi.nlm.nih.gov/pubmed/30959872 http://dx.doi.org/10.3390/nu11040793 |
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author | Athanasatou, Adelais Kandyliari, Aikaterini Malisova, Olga Kapsokefalou, Maria |
author_facet | Athanasatou, Adelais Kandyliari, Aikaterini Malisova, Olga Kapsokefalou, Maria |
author_sort | Athanasatou, Adelais |
collection | PubMed |
description | Mild dehydration may occur during specific periods of the day because of poor hydration habits and/or limited access to a variety of beverages or foods, for example, in work environments. Measurement of hydration indices in spot or in 24 h urine samples may mask mild dehydration in specific periods of the day. Healthy subjects (n = 164; 74 females; age 38 ± 12 years) living in Athens, Greece were enrolled in the study. Subjects recorded their solid food and drink intakes and recorded and collected all urinations for three consecutive days. Water intake was analyzed in 24 h and 6 h periods from wake-up time and scored for variety. Urine hydration indices (osmolality, volume, color, specific gravity) were analyzed in 24 h samples, in morning urine samples and in samples collected in 6 h periods from wake-up time. Fluctuations during the day were significant for the intake of drinking water, hot beverages, milk, fruit and vegetable juices, and alcoholic drinks and for urine osmolality, volume, color, and specific gravity. The urine volume of the first 6 h period after wake-up time (557 ± 231 mL/day) reflects by 76% the 24 h urine collection (1331 ± 144 mL/day). Water intake from all beverages, with the exception of alcoholic beverages, was greater in the first 6h period (morning period) and decreased throughout the day. Hydration indices changed accordingly. The 6 h timed urine sample collected reflects indices in samples collected over 24 h better than any spot urine sample. |
format | Online Article Text |
id | pubmed-6521245 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-65212452019-05-31 Fluctuation of Water Intake and of Hydration Indices during the Day in a Sample of Healthy Greek Adults Athanasatou, Adelais Kandyliari, Aikaterini Malisova, Olga Kapsokefalou, Maria Nutrients Article Mild dehydration may occur during specific periods of the day because of poor hydration habits and/or limited access to a variety of beverages or foods, for example, in work environments. Measurement of hydration indices in spot or in 24 h urine samples may mask mild dehydration in specific periods of the day. Healthy subjects (n = 164; 74 females; age 38 ± 12 years) living in Athens, Greece were enrolled in the study. Subjects recorded their solid food and drink intakes and recorded and collected all urinations for three consecutive days. Water intake was analyzed in 24 h and 6 h periods from wake-up time and scored for variety. Urine hydration indices (osmolality, volume, color, specific gravity) were analyzed in 24 h samples, in morning urine samples and in samples collected in 6 h periods from wake-up time. Fluctuations during the day were significant for the intake of drinking water, hot beverages, milk, fruit and vegetable juices, and alcoholic drinks and for urine osmolality, volume, color, and specific gravity. The urine volume of the first 6 h period after wake-up time (557 ± 231 mL/day) reflects by 76% the 24 h urine collection (1331 ± 144 mL/day). Water intake from all beverages, with the exception of alcoholic beverages, was greater in the first 6h period (morning period) and decreased throughout the day. Hydration indices changed accordingly. The 6 h timed urine sample collected reflects indices in samples collected over 24 h better than any spot urine sample. MDPI 2019-04-06 /pmc/articles/PMC6521245/ /pubmed/30959872 http://dx.doi.org/10.3390/nu11040793 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Athanasatou, Adelais Kandyliari, Aikaterini Malisova, Olga Kapsokefalou, Maria Fluctuation of Water Intake and of Hydration Indices during the Day in a Sample of Healthy Greek Adults |
title | Fluctuation of Water Intake and of Hydration Indices during the Day in a Sample of Healthy Greek Adults |
title_full | Fluctuation of Water Intake and of Hydration Indices during the Day in a Sample of Healthy Greek Adults |
title_fullStr | Fluctuation of Water Intake and of Hydration Indices during the Day in a Sample of Healthy Greek Adults |
title_full_unstemmed | Fluctuation of Water Intake and of Hydration Indices during the Day in a Sample of Healthy Greek Adults |
title_short | Fluctuation of Water Intake and of Hydration Indices during the Day in a Sample of Healthy Greek Adults |
title_sort | fluctuation of water intake and of hydration indices during the day in a sample of healthy greek adults |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6521245/ https://www.ncbi.nlm.nih.gov/pubmed/30959872 http://dx.doi.org/10.3390/nu11040793 |
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