Mission experience, from NASA and Soviet programs, on human cardiovascular responses to weightlessness, and the ability of bed rest studies to simulate these are discussed. In-flight effects include fluid shift to the upper body, decreased heart size, bone demineralization, orthostatic intolerance, and loss of exercise tolerance. All the cardiovascular changes that occur with weightlessness also occur with prolonged bed rest. They are most manifest when subjects stand suddenly, or undergo tilting or lower body negative pressure. The mechanisms which control these responses, e.g., the role of the central nervous system, are unclear.


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    Titel :

    Cardiovascular responses to weightlessness and ground-based simulations


    Beteiligte:
    Sandler, H. (Autor:in)


    Erscheinungsdatum :

    1982-08-01


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :



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    Cardiovascular Adaptation to Weightlessness

    Blomqvist, C. Gunnar | SAE Technical Papers | 1982



    Cardiovascular Effects Of Weightlessness

    Sandler, Harold | NTRS | 1992