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Vectorcardiographic Changes During Extended Space Flight. (M093)
Principal Investigator
Research Area:
Cardiovascular physiology
Species Studied
Scientific Name: Homo sapiens Species: Human

The Skylab experiment M093 was aimed at studying changes in electrical activity of the heart during space flight. The objectives were to measure electrocardiographic changes caused by prolonged exposure to weightlessness and to assess their effects on the human cardiovascular system.

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Smith RF, Stanton K, Stoop D, Brown D, Janusz W, King P. Vectorcardiographic changes during extended space flight (M093): observations at rest and during exercise. In: Johnston RS, Dietlein LF, eds. Biomedical Results from Skylab. Washington, DC: NASA Headquarters; 1977; 339-350. NASA SP-377. [NTRS]

Smith RF, Stanton K, Stoop D, Janusz W, King PH. Quantitative electrocardiography during extended space flight: the second manned Skylab mission. Aviation, Space, and Environmental Medicine. 1976. April; 47(4):353-9. []

Heart rate

Data Information
Data Availability
Archive is complete. No data sets are available for this experiment. Please Contact LSDA if you know of available data for this investigation.

Heart rate
PR interval
PR segment
QRS-T angle
QT interval
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Mission/Study Information
Mission Launch/Start Date Landing/End Date Duration
Skylab 2 05/25/1973 06/22/1973 28 days
Skylab 3 07/28/1973 09/25/1973 59.5 days
Skylab 4 11/16/1973 02/08/1974 84 days

Additional Information
Managing NASA Center
Johnson Space Center (JSC)
Responsible NASA Representative
Johnson Space Center LSDA Office
Project Manager: Jessica Keune
Institutional Support
Hardware Items