Jump Tests after Support Unloading of Various Durations: Maximum Height and Accuracy of Implementation
- Authors: Primachenko G.K.1, Shpakov A.V.1,2, Voronov A.V.2, Sokolov N.N.2
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Affiliations:
- Institute of Biomedical Problems, RAS
- Federal Science Center of Physical Culture and Sport
- Issue: Vol 50, No 6 (2024)
- Pages: 25-34
- Section: Articles
- URL: https://ruspoj.com/0131-1646/article/view/664075
- DOI: https://doi.org/10.31857/S0131164624060033
- EDN: https://elibrary.ru/AGKDAW
- ID: 664075
Cite item
Abstract
The paper presents results of a study of changes in speed-strength factors of the musculoskeletal system of the human lower extremities and factors of accuracy in performing multi-joint movements after exposure to such models of the physiological effects of microgravity as 21-day head-down bed rest (HDBR) and 7-day dry immersion (DI) with electromyostimulation (EMS) as a preventive measure against muscle atony. Maximum jump height, as well as the accuracy and variability of the jump height to a predetermined height were studied. The results of the study showed that exposure to the microgravity models has a similar effect on the absolute speed-strength parameters of lower extremities muscles and leads to their decrease. At the same time, HDBR and DI have different effects on the accuracy of performing multi-joint movements to a predetermined height. Thus, after HDBR, the accuracy increased, and after DI it decreased or remained at the background level. The mentioned decrease in the accuracy after DI may be a consequence of the use of EMS during DI.
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About the authors
G. K. Primachenko
Institute of Biomedical Problems, RAS
Author for correspondence.
Email: g.k.primachenko@mail.ru
Russian Federation, Moscow
A. V. Shpakov
Institute of Biomedical Problems, RAS; Federal Science Center of Physical Culture and Sport
Email: g.k.primachenko@mail.ru
Russian Federation, Moscow; Moscow
A. V. Voronov
Federal Science Center of Physical Culture and Sport
Email: g.k.primachenko@mail.ru
Russian Federation, Moscow
N. N. Sokolov
Federal Science Center of Physical Culture and Sport
Email: g.k.primachenko@mail.ru
Russian Federation, Moscow
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