The Validity of Urine Color as a Hydration Biomarker within the General Adult Population and Athletes: A Systematic Review

Kostelnik, Samantha; Davy, Kevin P.; Hedrick, Valisa E.; Thomas, D. Travis; Davy, Brenda M.

doi:10.1080/07315724.2020.1750073

Cited by 33 publications

(27 citation statements)

References 35 publications

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“…Laboratory data for urine (USG, urine color, osmolality) are considered good markers to evaluate HS [ 51 , 52 ]. In the present study, urine was measured via color chart in an afternoon urine spot, since USG findings of Bottin et al [ 26 ] suggest that an afternoon sample may be an accurate and practical tool for hydration monitoring.…”

Section: Discussionmentioning

confidence: 99%

Hydration status, body composition, and anxiety status in aeronautical military personnel from Spain: a cross-sectional study

Carretero-Krug

Úbeda

Velasco³

et al. 2021

Military Med Res

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Background An adequate hydration status is critical to ensure efficiency during mental and physical activities. Our goal was to assess the hydration status of a Spanish group of aeronautical military men and to determine the association of hydration status with body composition and anxiety. Methods A total of 188 men were evaluated through a validated hydration questionnaire, anthropometric and biochemical parameters, and an anxiety questionnaire. Based on these methods, the criteria of hydration were established. Results Of the total sample, 81% met the hydration criteria (urine color = well hydrated, water balance ≥ 0 ml, and total water intake/weight ≥ 35 ml/kg), and 19% did not meet the hydration criteria (urine color = not sufficiently hydrated or dehydrated, water balance < 0 ml, and total water intake/weight < 35 ml/kg). Subjects not meeting the hydration criteria had lower urine pH, negative water balance, and lower water intake. The latter also had higher anxiety status (score = 4 vs. 3, P = 0.026), weight [(84.7 ± 10.5) vs. (80.5 ± 10.2) kg], body mass index [(26.3 ± 3.1) vs. (25.2 ± 2.8)]kg/m2, body fat [(22.3 ± 5.6) vs. (18.3 ± 6.5)] %, urine specific gravity, and urine color. Using a logistic binary regression model, hydration status was related significantly with the percentage of body fat (P = 0.004), but no relation was found with age, comorbidities, or medications. Furthermore, total water intake/weight was positively correlated with percentage of body water (r = 0.357, P = 0.000) and negatively with body fat (kg) (r = − 0.427, P = 0.000), percentage of body fat (r = − 0.405, P = 0.000), and waist/hip ratio (r = − 0.223, P = 0.002). Based on a linear regression model, total water intake/weight was related significantly with percentage of body fat (P = 0.001) and percentage of body water content (P = 0.035). No relation was found, however, with waist/hip ratio, age, comorbidities, or medications. Conclusions These findings all suggest a relationship between hydration status and body composition but also set the bases for future studies that relate hydration status and anxiety status. These results can be used to improve the hydration status and body composition of military personnel.

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Section: Discussionmentioning

confidence: 99%

Hydration status, body composition, and anxiety status in aeronautical military personnel from Spain: a cross-sectional study

Carretero-Krug

Úbeda

Velasco³

et al. 2021

Military Med Res

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“…In a systematic review done by Kostelnik et al (2021), various studies evaluated UC to urine osmolality and urine specific gravity and demonstrated a lower correlation in older adults aged over 60 years. This indicates that UC is unable to express fluid intake or loss in older critically ill patients.…”

Section: Discussionmentioning

confidence: 99%

“…There are several mechanisms for MV effect. It has been found that 15 cm H2O positive pressure induced by MV depresses cardiac output, renal blood flow, and urine volume by 20 to 30 % so that UC is altered (Aitken L, Marshall A, 2019;Kostelnik et al, 2021).These combinations of changes among critically ill patients may alter the normal relationship between UC and hydration status.…”

Section: Introductionmentioning

confidence: 99%

Factors Affecting Change of the Urine Color as a Hydration Indicator among Critically Ill Patients

Elsaman

2021

Egyptian Journal of Health Care

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Background: Urine color (UC) is affected by fluid intake and loss from the body. Critically ill patients are exposed to many stressors added to the fluid intake or loss that can disturb body fluids movement affecting the color of the excreted urine. Aim: To assess factors affecting change of the urine color as a hydration indicator among critically ill patients. Design: A descriptive research design was used. Setting: The study was conducted at three general intensive care units in the Teaching Main

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“…52 This is true not only for assessments of cognition but also for hydration status assessment. Objective measures of hydration status include urine and serum osmolality, urine specific gravity, urine volume, and body mass loss, 75 and no consensus exists on which hydration assessment method is the gold standard in research or practice. 16,76 Although few obvious patterns were observed across different measurement types here, there may be value in considering standardized measures of dehydration, as well as considering whether subjective, self-reported measures of dehydration status may in fact be used to improve our understanding of the actual cognitive effects of hydration status.…”

Section: Strengths Limitations and Future Research Needsmentioning

confidence: 99%

Does Hydration Status Influence Executive Function? A Systematic Review

Katz

Airaghi

Davy

2021

Journal of the Academy of Nutrition and Dietetics

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The Validity of Urine Color as a Hydration Biomarker within the General Adult Population and Athletes: A Systematic Review

Cited by 33 publications

References 35 publications

Hydration status, body composition, and anxiety status in aeronautical military personnel from Spain: a cross-sectional study

Hydration status, body composition, and anxiety status in aeronautical military personnel from Spain: a cross-sectional study

Factors Affecting Change of the Urine Color as a Hydration Indicator among Critically Ill Patients

Does Hydration Status Influence Executive Function? A Systematic Review

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