Hypervolemia in Men from Drinking Hyperhydration Fluids at Rest and During Exercise PDF Download
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Author: J. E. Greenleaf
Publisher:
ISBN:
Category : Hydration
Languages : en
Pages : 66
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Author: J. E. Greenleaf
Publisher:
ISBN:
Category : Hydration
Languages : en
Pages : 66
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Author: National Aeronautics and Space Adm Nasa
Publisher:
ISBN: 9781729357248
Category : Science
Languages : en
Pages : 62
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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. Greenleaf, J. E. and Looftwilson, R. and Wisherd, P. P. and Fung, P. P. and Ertl, A. C. and Jackson, C. G. R. and Barnes, P. R. and Wong, L. G. Ames Research Center...
Author:
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Category : Aeronautics
Languages : en
Pages : 702
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Category : Government publications
Languages : en
Pages : 942
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Author:
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Category : Government publications
Languages : en
Pages : 944
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Category :
Languages : en
Pages : 84
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Category : Science
Languages : en
Pages : 564
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Category :
Languages : en
Pages : 24
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Author: Yutaka Tochihara
Publisher: Elsevier
ISBN: 0080455700
Category : Technology & Engineering
Languages : en
Pages : 535
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Environmental Ergonomics addresses the problems of maintaining human comfort, activity and health in stressful environments. Its subject areas include thermal environments, illumination, noise and hypo- and hyperbaric environments. The book concentrates fundamentally on the way the thermal environment has affected human comfort, health and performance from the age of cave-dwellings to our age of skyscrapers. This book contains only papers selected from the 10th ICEE held in Japan 23-27 September 2002. The ICEE has been held biannually since 1982, and has firmly established itself as the world’s most distinguished conference in its field, offering the ideal forum for research scientists, medical doctors, engineers, administrators, technicians, healthcare professionals and students to share their work and ideas. Selected papers from the 10th International Conference on Environmental Ergonomics held in Japan, 23-27 September 2002. They have been revised and peer-reviewed. Papers included in this text have been widely recognised as the catalyst for the recent advances witnessed in Environmental Ergonomics in Asia. They strike a balance between academia and industries' views on environmental ergonomics. Add this volume to your copy of the Elsevier Ergonomics Book Series.
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Category : Aeronautics
Languages : en
Pages : 522
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