scholarly journals Assessing a Tool for Self-Monitoring Hydration Using Urine Color in Pregnant and Breastfeeding Women: A Cross-Sectional, Online Survey

2017 ◽  
Vol 70 (Suppl. 1) ◽  
pp. 23-29
Author(s):  
Marion Rigaud ◽  
Camila Sevalho Corçao ◽  
Erica T. Perrier ◽  
Sabine Boesen-Mariani
Keyword(s):  
Total Body Water ◽  
Online Survey ◽  
Body Water ◽  
Water Dynamics ◽  
Total Water ◽  
Cross Sectional ◽  
Self Monitoring ◽  
Urine Color ◽  
Intent To Use ◽  
Total Body

Background: Pregnant and breastfeeding women experience great changes in their total body water content and water dynamics. To support the accretion of total body water during pregnancy and compensate for the water lost through breast milk during breastfeeding, increased adequate intakes (AI) for total water have been established by various health authorities. Despite this widespread advice, several studies suggest that pregnant and breastfeeding women do not meet the AI for total water, suggesting the need to raise women's awareness on the importance of adequate water intake, particularly during pregnancy and breastfeeding, as well as to provide them with a simple means of monitoring their hydration on a day-to-day basis. A urine color (UC) scale recently has been validated for hydration monitoring in pregnant and breastfeeding women. Summary: We sought to develop a version of a tool based on the UC scale, using only images or illustrations, which could be understood by users of various nationalities and spoken languages. Pregnant and breastfeeding women (n = 1,275) from Brazil, Mexico, and Poland were shown 3 versions of the tool. Understanding, appreciation, simplicity and intent to use were evaluated using a questionnaire consisting of 26 items. Key Messages: Among the 3 versions tested, one tool emerged as the most highly understood (88% spontaneous understanding) and was highly appreciated by users (mean [SD]: 8.40 [2.20] out of 10). There were no differences between countries. Furthermore, 83% reported being very likely to use the tool daily. These results suggest that a simple tool based on the UC scale will help pregnant and breastfeeding women meet the AI for total water.

TOTAL BODY WATER AND SOLIDS IN SIX- TO SEVEN-YEAR-OLD CHILDREN: DIFFERENCES BETWEEN THE SEXES

PEDIATRICS ◽  
1966 ◽  
Vol 38 (3) ◽  
pp. 483-489
Author(s):  
Ladislav P. Novak
Keyword(s):  
Body Weight ◽  
Total Body Water ◽  
Body Water ◽  
Total Water ◽  
Significant Extent ◽  
Upper Arm ◽  
Skinfold Measurements ◽  
Absolute Quantity ◽  
Total Body ◽  
Mean Differences

Total body water of the boys in this study was higher by 1.63 1 and by 3.75% than total water, expressed either in absolute or relative values, of the girls. These mean differences between the sexes were significant. The absolute quantity of body solids was higher in the girls by 0.44 kg. This difference was statistically insignificant. However, body solids expressed as a percentage of body weight were found to be higher by 3.75% in the girls, a difference which was statistically significant. The relative estimate of fatness by five skinfold measurements revealed all the skinfolds to be smaller in the boys. In particular, the upper arm and the thigh skinfolds were smaller in the boys to a statistically significant extent. The relative estimate of muscle mass made from the three calculated diameters showed that the boys had slightly greater musculature on their limbs. However, none of these differences proved to be statistically significant.

scholarly journals Lean Body Mass and Muscle Cross-Sectional Area Adaptations Among College Age Males with Different Strength Levels across 11 Weeks of Block Periodized Programmed Resistance Training

2021 ◽  
Vol 18 (9) ◽  
pp. 4735
Author(s):  
Paul A. Moquin ◽  
Alexander B. Wetmore ◽  
Kevin M. Carroll ◽  
Andrew C. Fry ◽  
W. Guy Hornsby ◽  
...  
Keyword(s):  
Resistance Training ◽  
Lean Body Mass ◽  
Body Mass ◽  
Total Body Water ◽  
Body Water ◽  
Cross Sectional Area ◽  
Sectional Area ◽  
Cross Sectional ◽  
Resistance Training Program ◽  
Total Body

The block periodization training paradigm has been shown to produce enhanced gains in strength and power. The purpose of this study is to assess resistance training induced alterations in lean body mass and cross-sectional area using a block periodization training model among individuals (n = 15) of three differing strength levels (high, moderate and low) based on one repetition maximum back squat relative to body weight. A 3 × 5 mixed-design ANOVA was used to examine within-and between-subject changes in cross-sectional area (CSA), lean body mass (LBM), lean body mass adjusted (LBMadjusted) and total body water (TBW) over an 11-week resistance training program. LBMadjusted is total body water subtracted from lean body mass. The ANOVA revealed no statistically significant between-group differences in any independent variable (p > 0.05). Within-group effects showed statistically significant increases in cross-sectional area (p < 0.001), lean body mass (p < 0.001), lean body mass adjusted (p ˂ 0.001) and total body water (p < 0.001) from baseline to post intervention: CSA: 32.7 cm2 ± 8.6; 36.3 cm2 ± 7.2, LBM: 68.0 kg ± 9.5; 70.6 kg ± 9.4, LBMadjusted: 20.4 kg ± 3.1; 21.0 kg ± 3.3 and TBW: 49.8 kg ± 6.9; 51.7 kg ± 6.9. In conclusion, the results of this study suggest subjects experienced an increase in both lean body mass and total body water, regardless of strength level, over the course of the 11-week block periodized program. Gains in lean body mass and cross-sectional area may be due to edema at the early onset of training.

What Total Body Water Measurement Should Be Used for Prescribing the Dialysis Dose in Low-Flow Home Daily Dialysis?

2021 ◽  
pp. 1-8
Author(s):  
Nicolas Gautier ◽  
Jerome Sampol ◽  
Elie Zagdoun ◽  
Simon Duquennoy ◽  
Diomaye Jean Pierre Dione ◽  
...  
Keyword(s):  
Total Body Water ◽  
Cross Sectional Study ◽  
Body Water ◽  
Low Flow ◽  
Dialysis Dose ◽  
Cross Sectional ◽  
Entire Cohort ◽  
Daily Dialysis ◽  
Total Body ◽  
The Impact

<b><i>Introduction:</i></b> In low-flow home daily dialysis (HDD), the dialysis dose is evaluated from the total body water (TBW). TBW can be estimated by anthropometric methods or bioimpedance spectroscopy. <b><i>Methods:</i></b> A multicentric cross-sectional study of patients in HDD for &#x3e;3 months was conducted to assess the correlation and the difference between the anthropometric estimate of TBW (Watson-TBW) and the bioimpedance estimate (BIS-TBW) and to analyse the impact on the dialysate volume prescribed. <b><i>Results:</i></b> Forty patients from 10 centres were included. The median BIS-TBW and Watson-TBW were 35.1 (29.1–41.4 L) and 36.9 (32–42.4 L), respectively. The 2 methods had a good correlation (<i>r</i> = 0.87, <i>p</i> &#x3c; 0.05). However, Bland-Altman analysis showed an overestimation of TBW with Watson’s formula, with a bias of 2.77 L. For 4, 5, or 6 sessions per week, the use of Watson-TBW increases the dialysate prescription per week by 100 L, 45 L, or 10 L, respectively, over our entire cohort. There is no increase in the volume of dialysate prescribed with the 7 sessions per week schedule. <b><i>Conclusion:</i></b> BIS-TBW and Watson-TBW estimation have a good correlation; however, Watson’s equation overestimates TBW. This overestimation is negligible for a prescription frequency of &#x3e;5 sessions per week.

Effect of total body water estimates via bioimpedance on bod pod-based three-compartment body fat models

2021 ◽  
Author(s):  
Brett S. Nickerson ◽  
Samantha V. Narvaez ◽  
Mitzy I. Juarez ◽  
Stefan A. Czerwinski
Keyword(s):  
Body Fat ◽  
Total Body Water ◽  
Body Water ◽  
Bod Pod ◽  
Total Body

scholarly journals Effects of a 14-Day Hydration Intervention on Individuals with Habitually Low Fluid Intake

2021 ◽  
Author(s):  
Aaron R. Caldwell ◽  
Megan E. Rosa-Caldwell ◽  
Carson Keeter ◽  
Evan C. Johnson ◽  
François Péronnet ◽  
...  
Keyword(s):  
Body Weight ◽  
Total Body Water ◽  
Fluid Intake ◽  
Urine Volume ◽  
Urine Osmolality ◽  
Body Water ◽  
Control Group ◽  
Intervention Phase ◽  
Total Body ◽  
Experimental Group

<b><i>Background:</i></b> Debate continues over whether or not individuals with low total water intake (TWI) are in a chronic fluid deficit (i.e., low total body water) [<xref ref-type="bibr" rid="ref1">1</xref>]. When women with habitually low TWI (1.6 ± 0.5 L/day) increased their fluid intake (3.5 ± 0.1 L/day) for 4 days 24-h urine osmolality decreased, but there was no change in body weight, a proxy for total body water (TBW) [<xref ref-type="bibr" rid="ref2">2</xref>]. In a small (<i>n</i> = 5) study of adult men, there were no observable changes in TBW, as measured by bioelectrical impedance, after increasing TWI for 4 weeks [<xref ref-type="bibr" rid="ref3">3</xref>]. However, body weight increased and salivary osmolality decreased indicating that the study may have been underpowered to detect changes in TBW. Further, no studies to date have measured changes in blood volume (BV) when TWI is increased. <b><i>Objectives:</i></b> Therefore, the purpose of this study was to identify individuals with habitually low fluid intake and determine if increasing TWI, for 14 days, resulted in changes in TBW or BV. <b><i>Methods:</i></b> In order to identify individuals with low TWI, 889 healthy adults were screened. Participants with a self-reported TWI less than 1.8 L/day (men) or 1.2 L/day (women), and a 24-h urine osmolality greater than 800 mOsm were included in the intervention phase of the study. For the intervention phase, 15 participants were assigned to the experimental group and 8 participants were assigned to the control group. The intervention period lasted for 14 days and consisted of 2 visits to our laboratory: one before the intervention (baseline) and 14 days into the intervention (14-day follow-up). At these visits, BV was measured using a CO-rebreathe procedure and deuterium oxide (D<sub>2</sub>O) was administered to measure TBW. Urine samples were collected immediately prior, and 3–8 h after the D<sub>2</sub>O dose to allow for equilibration. Prior to each visit, participants collected 24-h urine to measure 24-h hydration status. After the baseline visit, the experimental group increased their TWI to 3.7 L for males and 2.7 L for females in order to meet the current Institute of Medicine recommendations for TWI. <b><i>Results:</i></b> Twenty-four-hour urine osmolality decreased (−438.7 ± 362.1 mOsm; <i>p</i> &#x3c; 0.001) and urine volume increased (1,526 ± 869 mL; <i>p</i> &#x3c; 0.001) in the experimental group from baseline, while there were no differences in osmolality (−74.7 ± 572 mOsm; <i>p</i> = 0.45), or urine volume (−32 ± 1,376 mL; <i>p</i> = 0.89) in the control group. However, there were no changes in BV (Fig. <xref ref-type="fig" rid="f01">1</xref>a) or changes in TBW (Fig. <xref ref-type="fig" rid="f01">1</xref>b) in either group. <b><i>Conclusions:</i></b> Increasing fluid intake in individuals with habitually low TWI increases 24-h urine volume and decreases urine osmolality but does not result in changes in TBW or BV. These findings are in agreement with previous work indicating that TWI interventions lasting 3 days [<xref ref-type="bibr" rid="ref2">2</xref>] to 4 weeks [<xref ref-type="bibr" rid="ref3">3</xref>] do not result in changes in TBW. Current evidence would suggest that the benefits of increasing TWI are not related changes in TBW.

Prediction of Total Body Water using Scaled Conjugate Gradient Artificial Neural Network

2020 ◽  
Author(s):  
Marife A. Rosales ◽  
Maria Gemel B. Palconit ◽  
Argel A. Bandala ◽  
Ryan Rhay P. Vicerra ◽  
Elmer P. Dadios ◽  
...  
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Conjugate Gradient ◽  
Total Body Water ◽  
Body Water ◽  
Scaled Conjugate Gradient ◽  
Artificial Neural ◽  
Total Body

RESPONSE OF LACTATING EWES TO SNOW AS A SOURCE OF WATER

1981 ◽  
Vol 61 (1) ◽  
pp. 73-79 ◽  
Author(s):  
A. A. DEGEN ◽  
B. A. YOUNG
Keyword(s):  
Weight Gain ◽  
Milk Yield ◽  
Total Body Water ◽  
Energy Content ◽  
Water Source ◽  
Feeding Period ◽  
Total Water ◽  
Water Turnover ◽  
Total Body ◽  
Reduced Water

Eight Suffolk-cross ewes, each nursing a ram-lamb, were kept in a snow-covered field and were individually offered 2 kg of dehydrated alfalfa pellets daily. Half the ewes were denied water from the 4th to 14th wk of lactation but had access to snow as a water source (snow ewes), while the others were offered water during the daily feeding period (water ewes). The ewes readily accepted snow as their source of water. The total water turnover of the snow ewes was approximately 35% less than that of the water ewes; however, this reduced water intake did not affect their milk yield, total body water, or hemactocrit. The liveweight and total body solids of the ewes and energy content of the milk were not significantly different in the two groups. The weight gain of the lambs from the two groups of ewes was not significantly different, averaging 118 and 105 g/day for lambs from the water and snow ewes, respectively.

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