RESULTS
The use of impedancemetry aboard the International Space Station (ISS) made it possible to
study the mechanisms for adaptation and restructuring of homeostasis, as well as to monitor
the effectiveness of current countermeasure efforts. Upon completion of each session of the
experiment, electronic files were created, containing data suitable for further analysis. It was
discovered that the body’s total water content as well as the volume of extracellular and
cellular fluid decreased in flight in the majority of subjects studied. A deficit in body mass
developed due to the loss of lean body mass and a decrease in fatty components. Report
materials on the experiment as a whole will be presented after all the results obtained are fully
analyzed. Performance of the Sprut-2 space experiment is slated to continue among members
of subsequent ISS expeditions.
PUBLICATION(S)
Noskov VB, Nichiporuk IA, Grigoriev AI. Changes in
fluid media and body composition during long-
term spaceflight (bioimpedance analysis).
Aviakosmicheskaia i Ekologicheskaia Meditsina
(Aerospace and Environmental Medicine).
2007;41(3):3-7.
Noskov VB, Nikolayev DV, Tuykin SA, Kozharinov
VI, Grachev VA. Portable impedancementer for
evaluating the body’s fluid spaces during
spaceflight. Meditsinskaia Tekhnika (Biomedical
Engineering). 2007(2):45-47.
Grigoriev AI, Larina IM, Noskov VB. Effect of
spaceflights on status and regulation of water-
electrolyte exchange. Rossiĭskii fiziologicheskiĭ
zhurnal imeni I.M. Sechenova / Rossiĭskaia
akademiia nauk. 2006;92(1):5-17.
Noskov VB, Nichiporuk IA, Morukov BV,
Malenchenko YI. Study of the state of human
bodily fluids during long-term spaceflight.
Aviakosmicheskaia i Ekologicheskaia Meditsina
(Aerospace and Environmental Medicine).
2005;39(1):27-31.
This investigation is complete and all results are published.
Russian cosmonaut D.Yu. Kondratyev during a
session of the Sprut-2 investigation aboard the
International Space Station. Roscosmos image.