Venoconstrictive Thigh Cuffs Impede Fluid Shifts During Simulated Microgravity

Venoconstrictive Thigh Cuffs Impede Fluid Shifts During Simulated Microgravity

The microgravity environment associated with spaceflight has a number of significant effects on the human body, one of with is a net shift of fluid into the thoracocephalic compartment. The purpose of this study was to investigate the effects of venoconstrictive cuffs on the body's fluid distri...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: Lindgren, Kjell N
Format: Report
Sprache:eng
Schlagworte:
ANTHROPOMETRY
BLOOD VOLUME
BODY FLUIDS
CARDIOVASCULAR SYSTEM
FLUID FLOW
FLUID SHIFTS
GRAVITY
HDT(HEAD DOWN TILT)
HEAD DOWN TILT
HUMAN BODY
IMPEDANCE
LEG VOLUME
LEGS
Medicine and Medical Research
MICROGRAVITY
PLETHYSMOGRAPHY
SIMULATION
SPACE FLIGHT
Stress Physiology
THESES
THORACOCEPHALIC
VASCULAR CONGESTION
VEINS
VENOCONSTRICTIVE CUFFS
VENOUS FLOW
WEIGHTLESSNESS
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Beschreibung
Zusammenfassung:The microgravity environment associated with spaceflight has a number of significant effects on the human body, one of with is a net shift of fluid into the thoracocephalic compartment. The purpose of this study was to investigate the effects of venoconstrictive cuffs on the body's fluid distribution during simulated microgravity. This study was designed to test the following hypothesis: venoconstrictive thigh cuffs, inflated to 50 mmHg during simulated microgravity as modeled by 12 degree head down tilt (HDT), will impede venous flow resulting in increased leg blood volumes and thereby changing the whole body fluid distribution.