First reported cases of exercise-associated hyponatremia in Asia
Deutscher übersetzter Titel: | Erste Berichte über Fälle von trainingsbedingter Hyponatriämie in Asien |
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Autor: | Lee, Jason K.W.; Nio, A.Q.X.; Ang, W.H.; Johnson, C.; Aziz, A.R.; Lim, C.L.; Hew-Butler, T. |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 32 (2011), 4, S. 297-302, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
DOI: | 10.1055/s-0030-1269929 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201111009990 |
Quelle: | BISp |
Abstract
There are no reported cases of exercise-associated hyponatremia (EAH) in tropical Asia. This study aimed to investigate the incidence of EAH at the on-site medical tent and fluid balance in long distance foot races in a warm and humid environment. Body mass was taken before and after the races (42-km marathon; 84-km ultra-marathon). Blood sodium concentration was measured for symptomatic runners admitted to the medical tent. Mean (SD) dry bulb temperature was 29.0 (0.6)°C, relative humidity 89 (2)% and wind speed 0.3 (0.5) m/s. Three out of the 8 symptomatic runners admitted to the medical tent were diagnosed with hyponatremia, with blood sodium concentrations of 134 mmol/L in a 42-km runner, and 131 and 117 mmol/L in two 84-km runners. In the 42-km race, mean % ΔBM was −1.6 (1.2)%, ranging from −5.7 to 1.4%, and 22 runners (7%) gained weight. In the 84-km race, mean % ΔBM was −2.3 (1.7)%, ranging from −8.0 to 1.4%, and 9 runners (8%) gained weight. In addition to the 3 cases of symptomatic hyponatremia observed, 8% of the 84-km runners and 7% of the 42-km runners gained weight during the race. This indicates the need to disseminate advice for the prevention and treatment of EAH for races held in the tropics.Verf.-Referat