Contribution of abdomen and legs to central blood volume expansion in humans during immersion

Lars Bo Johansen, Thomas Ulrik Skram Jensen, Bettina Pump, and Peter Norsk Danish Aerospace Medical Centre of Research, Rigshospitalet 7805, DK-2200 Copenhagen, Denmark Received 2 October 1996; accepted in final form 22 April 1997. Johansen, Lars Bo, Thomas Ulrik Skram Jensen, Bettina Pump, and Pete...

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Bibliographic Details
Published in:Journal of applied physiology (1985) 1997-09, Vol.83 (3), p.695-699
Main Authors: Johansen, Lars Bo, Jensen, Thomas Ulrik Skram, Pump, Bettina, Norsk, Peter
Format: Article
Language:English
Subjects:
Abdomen - anatomy & histology
Abdomen - blood supply
Abdomen - physiology
Adult
Biological and medical sciences
Blood Proteins - metabolism
Blood Volume - physiology
Body Fluids - physiology
Echocardiography
Fundamental and applied biological sciences. Psychology
Hematocrit
Hemodilution
Hemodynamics - physiology
Hemodynamics. Rheology
Hemoglobins - metabolism
Humans
Immersion - physiopathology
Leg - anatomy & histology
Leg - blood supply
Leg - physiology
Male
Regional Blood Flow - physiology
Space life sciences
Vertebrates: cardiovascular system
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Summary:Lars Bo Johansen, Thomas Ulrik Skram Jensen, Bettina Pump, and Peter Norsk Danish Aerospace Medical Centre of Research, Rigshospitalet 7805, DK-2200 Copenhagen, Denmark Received 2 October 1996; accepted in final form 22 April 1997. Johansen, Lars Bo, Thomas Ulrik Skram Jensen, Bettina Pump, and Peter Norsk. Contribution of abdomen and legs to central blood volume expansion in humans during immersion. J. Appl. Physiol. 83(3): 695-699, 1997. The hypothesis was tested that the abdominal area constitutes an important reservoir for central blood volume expansion (CBVE) during water immersion in humans. Six men underwent 1 ) water immersion for 30 min (WI), 2 ) water immersion for 30 min with thigh cuff inflation (250 mmHg) during initial 15 min to exclude legs from contributing to CBVE (WI+Occl), and 3 ) a seated nonimmersed control with 15 min of thigh cuff inflation (Occl). Plasma protein concentration and hematocrit decreased from 68 ± 1 to 64 ± 1 g/l and from 46.7 ± 0.3 to 45.5 ± 0.4% ( P
ISSN:8750-7587
1522-1601
DOI:10.1152/jappl.1997.83.3.695