Variation of the State of Lower Limb Veins in Cosmonauts during Long-term Missions
- Autores: Kotovskaya A.1, Fomina G.1, Salnikov A.1
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Afiliações:
- Institute of Biomedical Problems
- Edição: Volume 43, Nº 7 (2017)
- Páginas: 769-773
- Seção: Article
- URL: https://journals.rcsi.science/0362-1197/article/view/177372
- DOI: https://doi.org/10.1134/S036211971707009X
- ID: 177372
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Resumo
This paper reports changes in the main parameters of lower limb veins in 35 cosmonauts in the course of six-month space missions. Major reduction in the leg volume was shown in all cosmonauts, as well as a significant increase in venous capacitance and compliance. The rate of lower leg vein filling exhibited different trends; it was decreased in the majority of cosmonauts (n = 26, 74%) and increased in the rest (n = 9, 26%). Increases in venous capacitance, compliance, and filling rates may impact orthostatic stability (OS). These changes are among the pathophysiological mechanisms of the OS loss in spaceflight.
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Sobre autores
A. Kotovskaya
Institute of Biomedical Problems
Autor responsável pela correspondência
Email: kotovskaia@imbp.ru
Rússia, Moscow, 123007
G. Fomina
Institute of Biomedical Problems
Email: kotovskaia@imbp.ru
Rússia, Moscow, 123007
A. Salnikov
Institute of Biomedical Problems
Email: kotovskaia@imbp.ru
Rússia, Moscow, 123007