Ground reaction force values in cosmonauts during locomotor exercises on board the International Space Station

被引：5

作者：

Fomina E.V. ^{[1
,2
]}

Savinkina A.O. ^{[1
,3
]}

Yarmanova E.N. ^{[1
]}

机构：

[1] Institute of Biomedical Problems, Russian Academy of Sciences, Moscow

[2] Moscow Pedagogical State University, Moscow

[3] Russian State University of Physical Education, Sport, Youth and Tourism (SCOLIPE), Moscow

来源：

Human Physiology | 2017年 / 43卷 / 5期

基金：

俄罗斯基础研究基金会;

关键词：

countermeasure; ground reaction force; long-duration space flight; microgravity; strategy of locomotion;

D O I：

10.1134/S0362119717050048

中图分类号：

学科分类号：

摘要：

Optimal methods for the prevention of negative impact of weightlessness have been developed based on the concept of Kozlovskaya, which states that support afferentation plays a trigger role in the development of the hypogravity motor syndrome. In this study, the maximal vertical ground reaction force (GRF) values were analyzed when locomotor training was performed on a BD-2 treadmill in long-term spaceflights. The study involved 12 cosmonauts. Recorded segments of the locomotor training (4554) performed in active (motor-driven) and passive (non-motor-driven) modes of BD-2 belt motion were analyzed. The data were analyzed by the methods of correlation and regression analysis and the nonparametric Mann–Whitney test. It was found that when running, regardless of the treadmill modes, an increase in the axial load by 1 kg was associated with a more than 1-kg increase in GRF; during walking an increase in GRF was less than 1 kg. As the speed increased, the GRF values increased most quickly when running in a passive mode and most slowly when walking in a passive mode. The GRF values in different BD-2 modes depended on both individual parameters of cosmonauts and locomotion types (walking or running). Our data can be the basis for the individualization of locomotor training onboard the ISS. © 2017, Pleiades Publishing, Inc.

引用

页码：542 / 548

页数：6

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