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The void in using urine concentration to assess population fluid intake adequacy or hydration status
dehydration fluid needs hydration assessment hypohydration hypovolemia
2018/12/13
Urine concentration can be used to assess fluid intake adequacy or to diagnose dehydration. However, too often urine concentration is used inappropriately to draw dubious conclusions that could have h...
Urinalysis for hydration assessment: an age-old problem
hydration assessment age-old problem
2018/11/30
Urinalysis has provided a noninvasive means of assessing human health for thousands of years. The daily volume of urine has been a proxy for water needs since the time of Galen of Pergamon (AD 129–200...
Four-component model of body composition in children: density and hydration of fat-free mass and comparison with simpler models
Body fat dual-energy X-ray absorptiometry total body water
2016/5/31
Body composition in children is generally measured
by 2-component (2C) models, which are subject to error
arising from variation in fat-free mass (FFM) composition. The
4-component (4C) model, whic...
Hydration of fat-free body mass: review and critique of a classic body-composition constant
body composition mammals dual-energy X-ray absorptiometry
2016/5/31
The assumed “constancy” of fat-free body
mass hydration is a cornerstone in the body-composition
research field. Hydration, the observed ratio of total body water
to fat-free body mass, is stable a...
The impact of post-exercise hydration with deep-ocean mineral water on rehydration and exercise performance
Hydration Deep-ocean mineral water Peak torque extension
2016/5/16
Background:Dehydration caused by prolonged exercise impairs thermoregulation, endurance and exercise performance. Evidence from animal and human studies validates the potential of desalinated deep-oce...
Hydration and Thermoregulation during a Half-Ironman Performed in Tropical Climate
Aerobic exercise triathlon hygrometry hydration
2015/8/28
The aim of this study was to compare the core temperature (TC)
and markers of hydration status in athletes performing a half
Ironman triathlon race in hot and humid conditions (27.2 ±
0.5°C, rel...
Hydration status and fluid intake of urban,underprivileged South African male adolescent soccer players during training
Hydration Fluid Adolescent Soccer Male
2015/7/30
Poor hydration compromises performance and heightens the risk of heat stress which adolescents are particularly susceptible to as they produce comparatively larger amount of metabolic heat during exer...
Effects of a moderate intake of beer on markers of hydration after exercise in the heat: a crossover study
Dehydration Hot conditions Running Alcohol Diuresis Young men
2015/7/30
Exercise in the heat causes important water and electrolytes losses through perspiration. Optimal rehydration is crucial to facilitate the recuperation process after exercise. The aim of our study was...
Changes in foot volume,body composition,and hydration status in male and female 24-hour ultra-mountain bikers
Body mass Fat mass Hydration Foot volume
2015/7/29
The effects of running and cycling on changes in hydration status and body composition during a 24-hour race have been described previously, but data for 24-hour ultra-mountain bikers are missing. The...
Comparison of coconut water and a carbohydrate-electrolyte sport drink on measures of hydration and physical performance in exercise-trained men
Hydration Coconut Water Sport Drink Exercise
2015/7/23
Sport drinks are ubiquitous within the recreational and competitive fitness and sporting world. Most are manufactured and artificially flavored carbohydrate-electrolyte beverages. Recently, attention ...
Examination of the efficacy of acute L-alanyl-L-glutamine ingestion during hydration stress in endurance exercise
acute L-alanyl-L-glutamine ingestion hydration stress endurance exercise
2015/7/20
The effect of acute L-alanyl-L-glutamine (AG; Sustamine™) ingestion on performance changes and markers of fluid regulation, immune, inflammatory, oxidative stress, and recovery was examined in r...
Effects of tissue hydration on nanoscale structural morphology and mechanics of individual Type I collagen fibrils in the Brtl mouse model of Osteogenesis Imperfecta
AFM Ultrastructure Genotype/phenotype D-periodic spacing Modulus Energy
2014/11/6
Type I collagen is the most abundant protein in mammals, and is a vital part of the extracellular matrix for numerous tissues. Despite collagen’s importance, little is known about its nanoscale morpho...
DOES A MULTI-STAGE ULTRA-ENDURANCE RUN CAUSE DE- OR HYPER HYDRATION?
ultra-run fluid intake skeletal muscle damage renal function
2013/10/4
We investigated the changes in body mass and parameters of both renal function and fluid metabolism in a case study in a female ultra-endurance runner during the longest multi-stage mountain ultra-mar...
Effect of hydration state on renal responses to head-out water immersion in conscious dogs
hydration renal immersion animal dog
2009/3/30
Renal responses to head-out water immersion (WI) (37 degrees C, WI 100 min) were studied in conscious, instrumented dogs during volume repletion (R), when all blood and urine losses were replaced with...
A whole-body model to distinguish excess fluid from the hydration of major body tissues1,2,3
Excess fluid tissue hydration normal hydration body composition adipose tissue ECW:ICW ratio
2008/12/12
Background: Excess fluid (ExF) accumulates in the body in many conditions. Currently, there is no consensus regarding methods that adequately distinguish ExF from fat-free mass.Objective: The aim was ...