Dietary sodium intake and changes in plasma volume during short-term exercise training
Deutscher übersetzter Titel: | Zusammenhang von Natriumeinnahme in der Nahrung und Plasmavolumenaenderungen waehrend eines kurzzeitigen Ausdauertrainings |
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Autor: | Luetkemeier, M.J. |
Erschienen in: | International journal of sports medicine |
Veröffentlicht: | 16 (1995), 7, S. 435-438, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource Elektronische Ressource (online) |
Sprache: | Englisch |
ISSN: | 0172-4622, 1439-3964 |
DOI: | 10.1055/s-2007-973033 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199510103465 |
Quelle: | BISp |
Abstract des Autors
This study was a retrospective examination of the relationship between estimated dietary sodium intake and training-induced changes in plasma volume (PV). It was undertaken to explore one possible explanation for the large individual differences in PV shifts accompanying 3 d of endurance cycling. Ten healthy males rode a stationary cycle for an average time of 94 min/day at an average relative intensity of 68% VO2max. During the training period, the subjects were allowed to eat a diet of their own choosing and dietary sodium intake was estimated from diet records. Plasma volume was determined before and after short-term training by dye dilution using Evan's blue dye. The mean increase in PV was 4.53 ml/kg body weight (BW) (i.e. 11%). However, the individual shifts in PV ranged from -1.44 - 14.30 ml/kg BW. The correlation coefficient between estimated dietary sodium intake and changes in PV was 0.81. It was concluded that dietary sodium intake was strongly associated with training-induced shifts in PV and may be an influential factor in determining the magnitude of PV expansion derived from short-term exercise training. Further studies are needed, however, to examine this hypothesis. Verf.-Referat