Glycerol use in hyperhydration and rehydration: scientific update.

摘要: Glycerol ingestion creates an osmotic drive that enhances fluid retention. The major practical applications for athletes are to either (i) hyperhydrate before exercise so they have more be lost as sweat during subsequent performance, thereby delaying the progression of dehydration from becoming physiologically significant, or (ii) improve both rate rehydration and total retention following exercise. Recently we showed may improved further by combining glycerol with intravenous fluids. Improvements in endurance time, time trial performance power work output been seen glycerol-induced hyperhydration rehydration. Another recent increased body weight associated extra does not inadvertently affect running economy. Concerns haemodilution vascular space sufficient mask illegal doping practices led World Anti-Doping Agency (WADA) add its list prohibited substances 2010. Recent evidence suggests doses > 0.032 ± 0.010 g/kg lean mass (much lower than those required rehydration) will result urinary excretion detectable, under WADA jurisdiction should cautious limit their inadvertent intake.