دورية أكاديمية
Ad libitum water consumption prevents exercise-associated hyponatremia and protects against dehydration in soldiers performing a 40-km route-march
| العنوان: | Ad libitum water consumption prevents exercise-associated hyponatremia and protects against dehydration in soldiers performing a 40-km route-march |
|---|---|
| المؤلفون: | Heinrich W. Nolte, Kim Nolte, Tamara Hew-Butler |
| المصدر: | Military Medical Research, Vol 6, Iss 1, Pp 1-7 (2019) |
| بيانات النشر: | BMC, 2019. |
| سنة النشر: | 2019 |
| المجموعة: | LCC:Medicine (General) LCC:Military Science |
| مصطلحات موضوعية: | Serum sodium concentration, Exercise-associated hyponatremia, Arginine vasopressin, Fluid balance, Electrolyte balance, Military, Medicine (General), R5-920, Military Science |
| الوصف: | Abstract Background It remains unclear if ad libitum water drinking, as a hydration strategy, prevents exercise-associated hyponatremia (EAH) during prolonged exercise. The aim of this study was to determine the incidence of EAH within the broader context of fluid regulation among soldiers performing a 40-km route-march ingesting water ad libitum. Methods Twenty-eight healthy male soldiers participated in this observational trial. Pre- and post-exercise body mass, blood and urine samples were collected. Blood samples were assessed for serum sodium ([Na+]), glucose, creatinine, urea nitrogen (BUN), plasma osmolality, creatine kinase (CK), and plasma arginine vasopressin (AVP) concentrations. Plasma volume (PV) was calculated using hematocrit and hemoglobin. Urine samples were analyzed for osmolality and [Na+]. Water intake was assessed by weighing bottles before, during and after the march. The mean relative humidity was 55.7% (21.9–94.3%) and the mean dry bulb temperature was 27.1 °C (19.5 °C - 37.0 °C) during the exercise. Results Twenty-five soldiers (72 ± 10 kg) (Mean ± SD) completed the march in 09:11 ± 00:43 (hr:min). Participants consumed 736 ± 259 ml/h of water and lost 2.8 ± 0.9 kg (4.0% ± 1.4%, P 1000 mOsmol/kg H2O) and plasma AVP. No single hydration strategy likely prevents EAH, but hypernatremia (cellular dehydration) was not seen despite > 2% body mass losses and high urine osmolality. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2054-9369 |
| Relation: | http://link.springer.com/article/10.1186/s40779-019-0192-y; https://doaj.org/toc/2054-9369 |
| DOI: | 10.1186/s40779-019-0192-y |
| URL الوصول: | https://doaj.org/article/bc27cb7394ff4a15ab8bd10ee82d4db2 |
| رقم الأكسشن: | edsdoj.bc27cb7394ff4a15ab8bd10ee82d4db2 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Springer Verlag. 
Full Text Finder | تدمد: | 20549369 |
|---|---|
| DOI: | 10.1186/s40779-019-0192-y |