Key result
Daily artificial gravity of up to 30 minutes on a short-arm centrifuge with 1Gz did not prevent changes in autonomic cardiovascular control following 60 days of 6° head-down tilt bed rest.
Why the study?
Impaired cardiovascular autonomic control after space flight or immobilization limits coping with hemodynamic stimuli, and long-term data on artificial gravity's efficacy were needed before space implementation.
Does daily artificial gravity via short-arm centrifugation attenuate functional adaptions of autonomic cardiovascular control in healthy persons undergoing 60-day head-down tilt bed rest?
Population
24 healthy persons in a 60-day head-down tilt bed rest study
Comparison
Continuous vs intermittent short-arm centrifugation vs control
Design
Three-arm intervention study
Follow-up
60 days
Authors
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Daily short-arm centrifugation does not prevent autonomic deconditioning after 60-day bedrest; leaves open whether higher-dose or longer artificial gravity regimens merit testing.
RCT (n=24)
Open-label
No
Does daily artificial gravity via short-arm centrifugation attenuate functional adaptions of autonomic cardiovascular control in healthy persons undergoing 60-day head-down tilt bed rest?
Daily 30-minute artificial gravity at 1Gz is insufficient to prevent the shift toward sympathetic autonomic cardiovascular control induced by 60 days of head-down tilt bed rest.
Moestl et al. (2023) conducted an RCT in Cardiovascular deconditioning (n=24). Artificial gravity (short-arm centrifugation) vs. Bed rest without countermeasure was evaluated on Autonomic cardiovascular control (HRV, BRS, blood pressure variability). Daily artificial gravity of up to 30 minutes on a short-arm centrifuge with 1Gz did not prevent changes in autonomic cardiovascular control following 60 days of 6° head-down tilt bed rest.
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