Cardiovascular responses to hypogravic environmentsThe cardiovascular deconditioning observed during and after space flight is characterized in a review of human space and simulation studies and animal simulations. The various simulation techniques (horizontal bed rest, head-down tilt, and water immersion in man, and immobilization of animals) are examined, and sample results are presented in graphs. Countermeasures such as exercise regimens, fluid replacement, drugs, venous pooling, G-suits, oscillating beds, electrostimulation of muscles, lower-body negative pressure, body-surface cooling, and hypoxia are reviewed and found to be generally ineffective or unreliable. The need for future space experimentation in both humans and animals is indicated.
Document ID
19840047569
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Sandler, H. (NASA Ames Research Center Biomedical Research Div., Moffett Field, CA, United States)