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LOCOMOTION STRATEGIES AND INTENSITY OF SUPPORT REACTIONS AS AN APPROACH TO INDIVIDUALIZATION OF COUNTERMEASURES
Summary
Understanding support reactions (SR) is key for cosmonaut training in microgravity. This study analyzed maximal SR during locomotion to inform personalized training programs for long-duration space missions.
Area of Science:
- Space medicine
- Human physiology
- Biomechanics
Background:
- Cosmonaut training for hypogravity requires understanding locomotion changes.
- Support afferentation, influenced by support reactions (SR), is crucial for adaptation.
- Optimal training strategies are needed for long-duration space missions.
Purpose of the Study:
- To analyze the vertical component of maximal SR during locomotion at identical speeds.
- To compare SR during walking and running on motorized and non-motorized treadmills in 1g and microgravity.
- To inform the planning of cosmonaut training programs.
Main Methods:
- Measured vertical component of maximal SR during walking on a motorized treadmill.
- Measured vertical component of maximal SR during running on a non-motorized treadmill.
- Utilized the ISS treadmill BD-2 with vibroisolation and axial loading, alongside ground-based testing.
Main Results:
- Minimal vertical SR components were observed during walking on the motorized treadmill.
- Maximal vertical SR components were observed during running on the non-motorized treadmill.
- SR patterns were more consistent on the ISS treadmill than on the ground.
Conclusions:
- Individual differences in locomotion strategies and maximal SR are significant.
- Support reactions (SR) must be considered for personalized cosmonaut training.
- This research contributes to optimizing training for long-duration spaceflight.
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