Blood and urinary measures of hydration status during progressive acute dehydration.

@article{Popowski2001BloodAU,
  title={Blood and urinary measures of hydration status during progressive acute dehydration.},
  author={L A Popowski and Robert A. Oppliger and G Patrick Lambert and Richard F Johnson and A Kim Johnson and C V Gisolf},
  journal={Medicine and science in sports and exercise},
  year={2001},
  volume={33 5},
  pages={747-53}
}
PURPOSE To determine whether: a) plasma osmolarity (Posm) is sensitive to small incremental changes in hydration status, b) urine specific gravity (Usg) can accurately identify a state of euhydration, c) Usg is a sensitive indicator of a change in hydration status, and d) Usg correlates with Posm. METHODS Euhydrated (Posm = 288 +/- 4 mOsm.L-1) subjects (N = 12) were dehydrated by 5% of their body weight via exercise in the heat (40 degrees C, 20% RH). Posm, urine osmolarity (Uosm), and Usg… CONTINUE READING