Interactions of the human cardiopulmonary, hormonal and body fluid systems in parabolic flight.

ABSTRACT:

Purpose

Commercial parabolic flights accessible to customers with a wide range of health states will become more prevalent in the near future because of a growing private space flight sector. However, parabolic flights present the passengers' cardiovascular system with a combination of stressors, including a moderately hypobaric hypoxic ambient environment (HH) and repeated gravity transitions (GT). Thus, the aim of this study was to identify unique and combined effects of HH and GT on the human cardiovascular, pulmonary and fluid regulation systems.

Methods

Cardiac index was determined by inert gas rebreathing (CI(rb)), and continuous non-invasive finger blood pressure (FBP) was repeatedly measured in 18 healthy subjects in the standing position while they were in parabolic

SUBMITTER: Limper U 

PROVIDER: S-EPMC4019836 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature