introduction: water is an essential nutrient for life. it comprises 75% of total body weight in infants,60% in adult males and 50% in adult females. decrease in body water is commonly known as dehydration. acute or chronic dehydration is a common condition in some population groups, especialy the elderly and those who participate in physical activity in warm enviroments. potential consequences ...

The purpose of this study was to determine whether high-school football players showed risks of fluid deficits during two-a-day training (Part 1), and whether implementing a drinking strategy could acutely improve the markers of hydration (Part 2). In Part 1, pre-training urine specific gravity (USG) and pre- and post-training body weight were measured at the morning session for 5 consecutive d...

aim and background: psychotic patients are at the risk of hyponatremia due to numerous reasons .given that severe hyponatremia can cause serious risks including seizures, coma and death, taking the symptoms into account seems necessary when patients referring to medical centers. therefore, the present study aimed to determine the prevalence rate of hyponatremia in psychotic patients in farshchi...

the purpose of this study was to determine the level of heat stress to construction workers using thermal work limit (twl) and wet bulb globe temperature (wbgt) indices and by measuring urine specific gravity (usg) among construction workers in iran and comparing the appropriateness of these indices for measuring heat stress in iran climate.this comparative and experimental study was conducted ...

A 21-year-old man presented after being struck by a car and underwent a computed tomography scan of the chest and spine. Three hours later, his clear yellow urine sample was sent to the laboratory. A routine urinalysis with the Roche Urisys® 2400 indicated the specific gravity (SG) as a flag, i.e., an error for SG. A manual repeat of the SG measurement was also not readable by refractometer (no...

The objective of the study was to investigate the hydration status and fluid balance of elite European youth soccer players during three consecutive training sessions. Fourteen males (age 16.9 ± 0.8 years, height 1.79 ± 0.06 m, body mass (BM) 70.6 ± 5.0 kg) had their hydration status assessed from first morning urine samples (baseline) and pre- and post-training using urine specific gravity (US...