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Blood Pressure Monitoring During Reentry (DSO 441)
Principal Investigator
Research Area:
Cardiovascular physiology
Species Studied
Scientific Name: Homo sapiens Species: Human

Postflight orthostatic hypotension has been noted since the Mercury flights and can be expected after exposures to weightlessness. Orthostatic hypotension arises from fluid shifts, fluid loss, decreased peak physical loads, and from neurological adaptation. Due to concerns related to hypotension during Space Shuttle reentry, crewmembers were provided with antigravity suits (AGSs).

Concerns were expressed over orthostatic problems directly affecting the astronauts during and immediately following reentry.
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Garrett BN. The role of ambulatory blood pressure monitoring in the evaluation of hypertension. Dateline Hypertension. 1983;1(5):1-7.

Ko WH, Yon ET, Mabrouk S, and Hynecek J. Taped on heart rate and electrocardiogram telemetry transmitters. Journal of Association for Advancement of Medical Instrumentation. 1971 Sep-Oct;5(5):268-72.[]

Nielsen SL and Lassen NA. Measurement of digital blood pressure after local cooling. Journal of Applied Physiology. 1977 Nov;43(5):907-10.[]

Roman J, Henry JP, and Meehan JP. The validity of flight blood pressure data. SAM-TR-65-27. Technical Report SAM-TR. USAF School of Aerospace Medicine. 1965 Aug:1-14.[]

Thornton W, Wallace J. Aerospace applications of ambulatory blood pressure monitoring. In: Weber MA and Drayer JIM. Ambulatory Blood Pressure Monitoring. New York: Springer-Verlag; 1983:95-104.

Warner G and Sankar TS. Circulation model for monitoring arterial systolic blood pressure. Medical and Biological Engineering and Computing. 1977 Mar;15(2):81-9.[]

Blood pressure
Heart rate
Orthostatic intolerance

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Data Information
Data Availability
Archive is complete. Some data sets are online.
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Some data sets are not publicly available but can be requested.
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Blood pressure, diastolic
Blood pressure, systolic
Heart rate
Orthostatic intolerance
PR product
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
STS-41D 08/30/1984 09/05/1984 6 days
STS-41G 10/05/1984 10/13/1984 8 days
STS-51B 04/29/1985 05/06/1985 7 days
STS-51C 01/24/1985 01/27/1985 3 days
STS-51F 07/29/1985 08/06/1985 7 days
STS-8 08/30/1983 09/05/1983 6 days

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Johnson Space Center LSDA Office
Project Manager: Jessica Keune
Institutional Support
National Aeronautics and Space Administration (NASA)