| タイトル | Hypervolemia in men from drinking hyperhydration fluids at rest and during exercise |
| 本文（外部サイト） | http://hdl.handle.net/2060/19950015127 |
| 著者（英） | Jackson, C. G. R.; Fung, P. P.; Wong, L. G.; Barnes, P. R.; Looftwilson, R.; Wisherd, P. P.; Greenleaf, J. E.; Ertl, A. C. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1994-12-01 |
| 言語 | eng |
| 内容記述 | To test the hypothesis that drink composition is more important than drink osmolality (Osm) for maintaining and increasing plasma volume (PV) at rest and during exercise, six men (22-39 yr, 76.84 +/- 16.19 kg, 2.99 +/- 0.45 L/min VO2 peak) each underwent six treatments while sitting for 90 min (VO2 = 0.39 L/min) and then performed upright ergometer exercise for 70 min (VO2 = 2.08 +/- 0.33 1/min, 70% +/- 7% VO2 peak). Drink formulations (10 ml/kg body weight, X = 768 ml) for the sitting period were: P1 (55 mEq Na(+), 365 mOsm/kg H2O), P2 (97.1 mEq Na(+), 791 mOsm/kg), P2G (113 mEqNa(+), 80 ml glycerol, 1,382 mOsm/kg, HyperAde (HA) (164 mEq Na(+), 253 mOsm/kg), and 01 and 02 (no drinking). The exercise drink (10 ml/kg, 768 ml) was P1 for all treatments except 02. Plasma volume at rest increased (p less than 0.05) by 4.7% with P1 and by 7.9% with HA. Percent change in PV during exercise was +1% to +3%0(NS) with HA; -6% to 0% (NS) with P1, P2, P2G, and 01; and -8% to -5% (p less than 0.05) with 02. HyperAde, with the lowest osmolality (253 mOsm/kg), maintained PV at rest and during exercise, whereas the other drinks with lower Na(+) and higher osmolality (365 to 1,382 mOsm/kg) did not. But Performance 1 also increased PV at rest. Thus, drink composition may be more important than drink osmolality for increasing plasma volume at rest and for maintaining it during exercise. |
| NASA分類 | LIFE SCIENCES (GENERAL) |
| レポートNO | 95N21544
NASA-TM-4657
A-94138
NAS 1.15:4657 |
| 権利 | No Copyright |
|
