American College of Sports Medicine position stand. Exercise and fluid replacement.

@article{Sawka2007AmericanCO,
  title={American College of Sports Medicine position stand. Exercise and fluid replacement.},
  author={Michael N. Sawka and Louise M. Burke and Edward R. Eichner and Ronald J. Maughan and Scott Montain and Nina S. Stachenfeld},
  journal={Medicine and science in sports and exercise},
  year={2007},
  volume={39 2},
  pages={
          377-90
        }
}
This Position Stand provides guidance on fluid replacement to sustain appropriate hydration of individuals performing physical activity. The goal of prehydrating is to start the activity euhydrated and with normal plasma electrolyte levels. Prehydrating with beverages, in addition to normal meals and fluid intake, should be initiated when needed at least several hours before the activity to enable fluid absorption and allow urine output to return to normal levels. The goal of drinking during… 
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10 References

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Position stand on exercise and fluid replacement