Hydration status in Czech elderly adults: Gender and physical activity differences

Abstract

Overall, total body water physiologically decreases with age, from 75% in new-borns to 56% and 47% in men and women older than 50, respectively (EFSA, 2010). In adults, it is reported that the deficit of 1-2% of body water decreases physical and mental performance by 20% (EFSA, 2010; Gopinathan, Pichan, & Sharma, 1988). Dehydration is especially common and dangerous for infants, young children and older adults. Children have a higher proportion of body water compared to adults; they are also less heat tolerant and more susceptible to dehydration (British Nutrition Foundation, 2016). Older people have, thanks to a combination of lower total body water content and decreased thirst sensitivity, increased risk of developing dehydration. Additionally, age-related poor renal function and the increased prevalence of kidney and urinary tract diseases are likely to increase dehydration risk (Hooper, Bunn, Jimoh, & Fairweather-Tait, 2014; National Academies of Sciences, Engineering, and Medicine, 2016). The risk of dehydration can also be enhanced with increased physical activity, especially in hot climates. Adequate intakes of water for the elderly,

Hydration status and the differences between perceived beverage consumption and objective hydration status indicator in the Czech elite deaf athletes

“…For this reason, we used a value of 2 L/day as a criterion of sufficient amount of fluids taken from beverages. The same criteria were set out in Klimešová, Wittmannová, and Kováčová (2018).…”

The problem of malnutrition amongst acutely hospitalized elderly patients

“…Water imbalance and under-nutrition are preventable disorders and the early identification of such conditions may improve seniors' quality of life, and reduce disease burden [12]. The assessment of malnutrition and hydration status by the SGA questionnaire and the Tanita BI system is relatively quick, easy and are non--invasive methods [38,39,40,41,42,43].…”