[Functional state of the cardiovascular system system during combined exposure to 28-day immersion, rotation in a short radius centrifuge, and physical loading on a bicycle ergometer].
The cardiovascular function of four test subjects exposed to 28-day "dry" immersion was examined before and after 6-day cycles of rotation in a short-arm centrifuge to provide 1-2 Gz, bicycle ergometer exercise, and their combination. An exposure to acceleration of 3 Gz in a 7.25 m arm centrifuge was used as a provocative test. The above countermeasures reduced but not eliminated entirely immersion-induced cardiovascular deconditioning. From this study a combined use of acceleration of 1-2 Gz in a short-arm centrifuge and bicycle ergometer exercise can be recommended as a countermeasure against cardiovascular deconditioning in weightlessness.
D001794:Blood Pressure; D002319:Cardiovascular System / Q000503:physiopathology*; D006112:Gravitation; D006339:Heart Rate; D006801:Humans; D007101:Immersion / Q000503:physiopathology*; D008297:Male; D005082:Physical Exertion; D012399:Rotation; D013997:Time Factors
Funktsional'noe sostoianie serdechno-sosudistoĭ sistemy v usloviiakh sochetannogo vozdeĭstviia 28-sutochnoĭ immersii, vrashcheniĭ na tsentrifuge korotkogo radiusa i fizicheskoĭ nagruzki na veloérgometre.