Abstract
Tolerance of the chest-to-back accelerations (+Gx) at the peak value of 6.7 g was evaluated in two Soyuz crew members during the ballistic landing after an off-nominal launch. The G-tolerance of crew member 1 (CM1) when passing through the dense layers of the atmosphere was assessed as good based on analysis of reported subjective sensations and results of objective physiological investigations: the physiological reactions of the body to the action of g-force were of a moderate nature; no critical signs limiting G-tolerance were noted. The G-tolerance of crew member 2 (CM2) was assessed based on analysis of objective physiological information only, which allowed us to consider it good. CM1 highly appreciated the experience gained during flight preparation, including the experience of centrifuge (CF) spins, which enabled him to act professionally in an emergency situation. The tolerance of g-force with a maximum value of 6.7 units by the ISS crew after the off-nominal Soyuz launch was assessed as good.
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The study was carried out within State Task no. 0130-2014-0006, topic 65.1 (State Registration no. 01201370667).
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All procedures performed in studies involving human participants were in accordance with the biomedical ethics principles formulated in the 1964 Helsinki Declaration and its later amendments and approved by the local Bioethics Committee of the Institute of Biomedical Problems, Russian Academy of Sciences (Moscow).
Conflict of interests. The authors declare that they do not have a conflict of interest.
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Translated by E. Babchenko
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Glebova, T.M., Koloteva, M.I., Orlov, O.I. et al. G-Tolerance of the ISS Crew during Ballistic Landing after Off-Nominal Launch of a Soyuz Space Vehicle. Hum Physiol 48, 894–898 (2022). https://doi.org/10.1134/S0362119722070167
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DOI: https://doi.org/10.1134/S0362119722070167