Dietary intake according to hydration status in 9-10 year-old soccer players

Abstract

Introduction: Children have an increased risk of voluntary dehydration especially during physical activity which may increase the risk of non-compensating water losses. Objectives: The aim of this study was to assess the hydration status and its relation to food intake in a children group of soccer players. Method: A sample of 36 boys aged 9-10 years was included in this study; 30 completed a 24 h urine collection. Participants completed a 24 h urine collection; a 24 hours food recall corresponding to the day of urine collection was applied, weight and height were measured and parents/caregivers fi lled a lifestyle and socio-demographic questionnaire. The free water reserve (FWR [ml/24 h] = urine volume [ml/24 h] -obligatory urine volume [ml/24 h]) was used to assess the hydration status. Food and beverage groups were created and models of unconditional logistic regression were fi tted in order to estimate the magnitude of the association between the hydration status and diet. Results: Forty three per cent of participants were classifi ed as at risk of hypohydration. Children who reported a high fruit and vegetables intake (above the median) were at decreased risk of hypohydration (OR = 0.19, 95% CI 0.04-0.94, p = 0.041), compared to children who reported a low fruit and vegetables intake. Conclusions: Almost half of the children were at risk of hypohydration. Our results suggested that water food sources such as fruit and vegetables may contribute to euhydration.

Physical activity and sedentary behavior impacts on dietary water intake and hydration status in Spanish schoolchildren: A cross-sectional study

“…The 24-h urine osmolality result was similar to that in other studies, in schoolchildren, as performed using the same methodology in different countries such as France [38], Egypt [39, 40], Greece [41], Portugal [42] and the United States [43].…”

“…We found that males had higher osmolality values than females. This result has been supported by several studies such as Ebner & Manz [44] in German schoolchildren (4–14 years old) from the DONALD study, Kavouras et al [41] (Greece schoolchildren from 9–13 years old), Bonnet et al [38] (French schoolchildren, 9–11 years old) and in Portuguese schoolchildren by Rodríguez et al [42] (9–10 years old) and Padrao et al [41] (7–11 years old). There are some factors that could explain these disparities between males and females.…”

“…The osmolality was calculated according to the following formula: Osmolality = [{sodium (mEq/l) + potassium (mEq/l)}*2 + urea (mg/dl)]/5.6 [37]. The children were considered to have adequate hydration (AH) when the osmolality was equal to or lower than 800 mOsm/kg in accordance with the criteria of other authors [38, 39, 40, 41, 42].…”

Análise da prevalência de hipoidratação em adolescentes da capital do Piauí

“…Mas a hipohidração humana pode ser provocada pelo uso de restrição de água, exercício prolongado, estresse térmico, administração diurética, ou uma combinação de métodos (JOHNSON EC, 2016; WATSON JC e FARQUHAR WB., 2019) Os efeitos mais proeminentes do desequilíbrio da água corporal são a percepção da sede, assumindo o consumo subsequente de água, e a concentração circulante de hormônios como a vasopressina arginina (AVP) e aqueles relacionados ao sistema de renina-angiotensina-aldosterona. Essas alterações no estado de hidratação dos indivíduos influenciam o seu bem-estar e podem prejudicar a sua saúde, sendo que a desidratação se associa ao declínio funcional, comprometendo a performance cognitiva e a capacidade motora, e pode ser fatal (JOHNSON EC, 2016; RODRIGUEZ L, et al, 2016).…”