Acute fluid volume changes in men during three days of creatine supplementation

Despite the plethora of recent research on creatine, little information exists relative to the nature of the weight gain reported from acute (< 5 d) supplementation. This study used multifrequency bioimpedance analysis (MBIA) to estimate the relative changes in total body water (TBW), extracellul...

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Bibliographic Details
Published in:Journal of exercise physiology online 1998-10, Vol.1 (3), p.11-11
Main Authors: Ziegenfuss, T N, Lowery, L M, Lemon, PWR
Format: Article
Language:English
Online Access:Get full text
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Summary:Despite the plethora of recent research on creatine, little information exists relative to the nature of the weight gain reported from acute (< 5 d) supplementation. This study used multifrequency bioimpedance analysis (MBIA) to estimate the relative changes in total body water (TBW), extracellular (ECV), and intracellular (ICV) fluid volumes in 10 cross-trained and aerobically trained men before, and during three days of creatine monohydrate (Cr) supplementation (0.35 g times kg FFM super(-1) times d super(-1)). Cr ingestion produced clear trends in fluid shifts, and by day three had increased TBW 2% (0.86 plus or minus 0.68 L, p = 0.07) and ICV 3% (0.77 plus or minus 0.40, p < 0.01); no effect was noted in ECV (p = 0.51). These findings seem to indicate that the weight gain associated with acute Cr supplementation is primarily a result of water retention and that much of this increase is contained within the intracellular compartment.
ISSN:1097-9751
1097-9751