Key result
A series of 5 short-arm centrifuge rotations with alternating g-values (+1.27 and +2.06 Gz) had a stimulating effect on the antiorthostatic reactions of peripheral arterial hemodynamics.
Why the study?
Using a short-arm centrifuge to counter orthostatic disorders requires experimental evidence of how different protocols affect antiorthostatic hemodynamic reactions to help develop artificial gravity protocols.
Does a series of short-arm centrifuge rotations stimulate anti-orthostatic reactions of arterial hemodynamics in healthy humans?
Does a series of short-arm centrifuge rotations stimulate anti-orthostatic reactions of arterial hemodynamics in healthy humans?
A shortened 45-minute short-arm centrifuge protocol with alternating g-values stimulated anti-orthostatic reactions of peripheral arterial hemodynamics in healthy humans, suggesting potential for artificial gravity protocols.
Provides preliminary LDF data on SAC hemodynamics; leaves open optimal AG protocols for orthostatic disorders in space and clinical use.
Methodology of using a short-arm centrifuge (SAC) as a countermeasure and/or correction of orthostatic disorders will rely on the experimental evidence of the effects produced by various SAC protocols on the antiorthostatic reactions of hemodynamics. The ultimate purpose of the investigations is to develop artificial gravity (AG) protocols for orbital SAC primarily, and also for the needs of healthcare services. The paper presents the results of laser Doppler flowmetry (LDF) in a series of 5 SAC rotations (+Gz) with a modified (shortened) protocol. Reduction of rotation to 45 min (vs 60 min in the session of 2022) was favorable to the general tolerance and did not reduce effectiveness. It was established that a series of 5 rotations with gradual duration reduction and alternating g-values (+1.27 and +2.06 Gz) had a stimulating effect on the antiorthostatic reactions of peripheral arterial hemodynamics. This fact was confirmed by comparison of the records during rotations 1 and 5, and the results of passive postural tests as a control. Conceivably, in future it will be necessary to develop a variety of protocols to meet other specific tasks.
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Fomina et al. (2024) studied Healthy humans. Short-arm centrifuge (SAC) rotations vs. Passive postural tests was evaluated on Antiorthostatic reactions of peripheral arterial hemodynamics. A series of 5 short-arm centrifuge rotations with alternating g-values (+1.27 and +2.06 Gz) had a stimulating effect on the antiorthostatic reactions of peripheral arterial hemodynamics.
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