Effects of Climate and Environment on water needs
Article by Hans Braun EHI Science Advisory Board member. German Sport University Cologne and German Research Centre of Elite Sport.
A 13-year-old boy with pharyngitis, oral ulcers, and dehydration
Abstract not found http://www.ncbi.nlm.nih.gov/pubmed/23556527
Isokinetic and isometric muscle function of the knee extensors and flexors during simulated soccer activity: Effect of exercise and dehydration
This study investigated the influence of dehydration during soccer-type intermittent exercise on isokinetic and isometric muscle function. Eight soccer players performed two 90-min high-intensity intermittent shuttle-running trials without (NF) or with (FL) fluid ingestion (5 ml · kg(-1) before and 2 ml · kg(-1) every 15 min). Isokinetic and isometric strength and muscular power of knee flexors and knee extensors were measured [...]
Management of a child with vomiting
Vomiting is a protective reflex that results in forceful ejection of stomach contents up to and out of the mouth. It is a common complaint and may be the presenting symptom of several life-threatening conditions. It can be caused by a variety of organic and nonorganic disorders; gastrointestinal (GI) or outside of GI. Acute gastritis [...]
Markers of Hydration Status in a 3-Day Trail Running Event
OBJECTIVE: To examine the relationships between changes in static prestage and poststage measures of commonly used hematological and urinary markers of hydration status and body mass (BM) in participants in a 3-day trail run. DESIGN: Descriptive field study. SETTING: Three Cranes Challenge trail run, South Africa. PARTICIPANTS: Twenty (6 men and 14 women) amateur runners. [...]
Behaviors and Attitudes Associated With Low Drinking Water Intake Among US Adults, Food Attitudes and Behaviors Survey, 2007
INTRODUCTION: Water is vital for life, and plain water is a calorie-free option for hydration. Increasing consumption of drinking water is a strategy to reduce energy intake and lose or maintain weight; however, information on the characteristics of consumers who drink water is limited. Our objective was to describe the characteristics of people who have [...]
Evaluation of Uosm:Posm ratio as a hydration biomarker in free-living, healthy young women
BACKGROUND/OBJECTIVES: Urinary and plasma indices are utilized to assess whole-body water balance in healthy adults, whereas the urine-to-plasma osmolality ratio (Uosm:Posm) rarely is. To explore the efficacy of Uosm:Posm as a hydration biomarker, diet records of 120 college women were analyzed (beverage water+food water=total fluid intake (TFI); 5 days) to identify habitual high-volume (HIGH) and [...]
Case Study: Nutrition and Hydration Status During 4254km of Running Over 78 Consecutive Days
The aims of this study were to assess the dietary intake and monitor self-reported recovery quality and clinical symptomology of a male ultra-endurance runner who completed a multi-day ultra-endurance running challenge covering 4254km from North Scotland to the Moroccan Sahara desert over 78 consecutive days. Food and fluid intakes were recorded and analysed through dietary [...]
The Influence of Rehydration Mode Following Exercise Dehydration on Cardiovascular Function
Our purpose was to compare common modes of rehydration (REHY) on cardiovascular and fluid regulation recovery following exercise dehydration (EXDE). Twelve non-heat-acclimatized trained subjects (23±4y, 81.3±3.7kg, 180±6cm, 56.9±4.4mLminkg VO2max, 7.8±3.0 % body fat) completed 20-h fluid restriction and 2-h EXDE to -4% body mass, then were rehydrated to -2% body mass in a randomized, cross-over [...]
Circadian variation and responsiveness of hydration biomarkers to changes in daily water intake
Biomarkers of hydration change in response to acute dehydration; however, their responsiveness to changes in fluid intake volume, without exercise or heat exposure, has not been adequately described. Moreover, patterns of circadian variation in hydration biomarkers have not been established. The study aims were to (1) assess the response of hydration biomarkers to changes in [...]