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  • Title: [Results of studying the hemodynamics and phase structure of the heart cycle in a functional test with lower body negative pressure exposure on an 140-day flight on the Saliut-6 station].
    Author: Egorov AD, Itsekhovskiĭ OG, Kas'ian II, Poliakova AP, Turchaninova VF.
    Journal: Kosm Biol Aviakosm Med; 1981; 15(6):65-9. PubMed ID: 7311454.
    Abstract:
    The two members of the 140-day permanent Salyut-6 space flight were exposed to 5 LBNP tests at -25 and -35 mm Hg for 2 and 3 min, respectively. Circulation responses to the LBNP tests were measured with respect to the heart rate, arterial pressure, chronocardiogram and cardiac output. As compared to the preflight data, inflight responses were characterized by a greater tachycardia, preload insufficiency, and vascular tone in the absence of orthostatic intolerance. Possible mechanisms of the changes in the circulation responses are discussed.
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