View clinical trials related to Hydration Status.
Filter by:Dehydration lowers both physical and mental performance if it is severe enough. Performance declines are more pronounced in hot conditions or after prolonged strenuous activity such as exercise. Most individuals drink less than their sweat losses during activity, while some individuals overdrink and develop a sodium deficiency. Water and electrolyte balance must be restored as part of the recovery process after any activity that causes sweating. Plain water causes a decrease in plasma sodium concentration and osmolality, which reduces the desire to drink and increases urine production. Unless the volume ingested exceeds the loss, individuals are in net negative fluid balance throughout the recovery period due to urinary losses. When sodium and potassium are added to rehydration fluids, urine production is reduced in the hours following rehydration. Rehydration is only possible if a volume of fluid equal to or greater than the amount lost through sweat is consumed, together with adequate electrolytes. The two test products for this study, are novel hydration beverage formulas. They are an electrolyte drink mixture with five essential vitamins and three times more electrolytes than typical sports beverages. The test products create an osmotic force that permits water to be supplied to the bloodstream sooner in the digestive system by using a specific ratio of sodium, glucose, and potassium. This randomized, placebo-controlled, semi-blind, crossover study will evaluate the effects of the test products on rehydration in healthy adults.
Objective: to evaluate hydration status and his impact on cognitive performance in adolescents-based cohort study. Methods: A randomized controlled pilot study is active in ten classes of one middle school (n=214 adolescents aged 12-14; including dismissed students) in an urban area around Milan, five classes being assigned to the intervention group and five classes to the control group. The five school-months intervention (from January to May 2018) includes changes in class environment (water dispenser to refill constantly, re-usable water bottles and educational posters about water consumption) and individual reinforcement tools (text messages and school lessons). The main endpoint is going to be the hydration status with osmolality urine test (dehydration statusā„800 mOsm/kg). The secondary endpoint is going to be the correlation between the hydration status and cognitive performance (attention, short-term memory and concentration) through administration of neuropsychological tests from Neuropsychological Assessment Battery for Adolescence (BVN 12-18). Results: it is expected an improvement of hydration status in intervention group versus control group and positive effects of a correct hydration on cognitive performance.
To collect field data in professional, collegiate, and high school football players to determine how they respond physiologically to the rigors of preseason training environment. Investigators will compare core temperature, hydration status, practice guidelines regarding rest and hydration, and baseline knowledge of heat illness and hydration among the three levels. The hypothesis is higher peak temperatures will be observed in the younger less experienced football players.