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Cardiovascular Evaluations (ASTP006)
Research Area:
Cardiovascular physiology
Species Studied
Scientific Name: Homo sapiens Species: Human

The objective of this investigation was to determine the response of the cardiovascular system to weightlessness. However, during reentry, the crew was exposed to toxic gases (mostly nitrogen tetroxide). Because of this episode during the Apollo-Soyuz Test Project (ASTP), most planned postflight evaluations were curtailed, altered or deleted.

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Anderson M, Rummel JA, Deutsch S. BIOSPEX: A Compendium of Life Science Experiments Carried on U. S. Spacecraft. NASA Technical Memorandum 58217, p. 33, 1979. [NTRS]

Berry CA. Summary of medical experience in the Apollo 7 through 11 manned spaceflights. Aerospace Medicine. 1970. May; 41(5):500-19. []

Nicogossian AE. Cardiovascular Evaluations. The Apollo-Soyuz Test Project Medical Report. NASA SP-411, p. 59-62, 1977. The Apollo-Soyuz Test Project. Medical Report.

Blood pressure
Cardiovascular system
Lower body negative pressure (LBNP)
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Data Information
Data Availability
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Blood pressure, diastolic: lower body negative pressure (LBNP)
Blood pressure, diastolic: resting
Blood pressure, systolic: lower body negative pressure (LBNP)
Blood pressure, systolic: resting
Cardiothoracic ratio: diastole
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
ASTP 07/15/1975 07/24/1975 9 days, 7.5 hours

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Johnson Space Center LSDA Office
Project Manager: Pamela A. Bieri
Institutional Support
National Aeronautics and Space Administration (NASA)