Comparison between blood and urinary indices for dehydration: a different interpretation.
ABSTRACT NOT FOUND http://www.ncbi.nlm.nih.gov/pubmed/23712213
Effect of varying the concentrations of carbohydrate and milk protein in rehydration solutions ingested after exercise in the heat.
The present study investigated the relationship between the milk protein content of a rehydration solution and fluid balance after exercise-induced dehydration. On three occasions, eight healthy males were dehydrated to an identical degree of body mass loss (BML, approximately 1•8 %) by intermittent cycling in the heat, rehydrating with 150 % of their BML over [...]
Sports nutrition needs: before, during, and after exercise.
This article discusses how athletes should properly fuel their bodies before, during, and after exercise to maximize athletic performance. Emphasis is placed on hydration status and glycogen stores being maintained above deficits that negatively affect sport performance. Timing of nutrient intake is as important as composition. http://www.ncbi.nlm.nih.gov/pubmed/23668654
Effect of maternal hydration on the amniotic fluid volume during maternal rest in the left lateral decubitus position: a randomized prospective study.
Objectives- The purpose of this study was to evaluate the effect of maternal hydration on amniotic fluid volume during maternal rest in the left lateral decubitus position. Methods- Pregnant women (n = 79) with an amniotic fluid index between 6 and 24 cm and a singleton uncomplicated pregnancy at 35 to 40 weeks' gestation were [...]
Position of the academy of nutrition and dietetics: ethical and legal issues in feeding and hydration.
It is the position of the Academy of Nutrition and Dietetics that individuals have the right to request or refuse nutrition and hydration as medical treatment. Registered dietitians (RDs) should work collaboratively as part of the interprofessional team to make recommendations on providing, withdrawing, or withholding nutrition and hydration in individual cases and serve as [...]
Increase in skeletal-muscle glycogenolysis and perceived exertion with progressive dehydration during cycling in hydrated men.
This study investigated the effects of progressive mild dehydration during cycling on whole-body substrate oxidation and skeletal-muscle metabolism in recreationally active men. Subjects (N = 9) cycled for 120 min at ~65% peak oxygen uptake (VO2peak 22.7 °C, 32% relative humidity) with water to replace sweat losses (HYD) or without fluid (DEH). Blood samples were [...]
Ad libitum fluid intake does not prevent dehydration in suboptimally hydrated young soccer players during a training session of a summer camp.
There is a lack of studies concerning hydration status of young athletes exercising in the heat. Purpose: To assess preexercise hydration status in young soccer players during a summer sports camp and to evaluate body-water balance after soccer training sessions. Methods: Initial hydration status was assessed in 107 young male soccer players (age 11-16 yr) [...]
Effect of preexercise soup ingestion on water intake and fluid balance during exercise in the heat.
Purpose: To determine whether chicken noodle soup before exercise increases ad libitum water intake, fluid balance, and physical and cognitive performance compared with water. Methods: Nine trained men (age 25 ± 3 yr, VO2peak 54.2 ± 5.1 ml • kg-1 • min-1; M ± SD) performed cycle exercise in the heat (wet bulb globe temperature [...]
Haemodynamic responses to dehydration in the resting and exercising human leg.
Dehydration and hyperthermia reduces leg blood flow (LBF), cardiac output([Formula: see text]) and arterial pressure during whole-body exercise. It is unknown whether the reductions in blood flow are associated with dehydration-induced alterations in arterial blood oxygen content (C aO2) andO2-dependent signaling. This study investigated the impact of dehydration and concomitant alterations in C aO2 upon [...]
Hydration status of Greco-Roman wrestlers in an authentic precompetition situation
We assessed the urinary indexes of hydration status of Greco-Roman wrestlers in an authentic precompetition situation at the time of official weigh-in (OWI). A total of 51 of 89 wrestlers competing in the Estonian Championship in 2009 donated a urine sample. Questionnaire responses revealed that 27 wrestlers (body mass losers (BMLs)) reduced body mass before [...]