Why the study?
Does flywheel exercise countermeasure affect portal vein cross-sectional area and orthostatic intolerance in subjects undergoing 90-day head-down tilt bed rest?
Population
18 subjects undergoing a 90-day head-down tilt (HDT) bed rest at 6 degrees
Comparison
Flywheel exercise countermeasures (CM) vs Controls (Con) without exercise countermeasures
Design
Other
Follow-up
90 days
Authors
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Flywheel exercise attenuates splanchnic distention during prolonged bed rest but does not prevent orthostatic intolerance; leaves open vasoconstriction mechanisms for prospective study.
Does flywheel exercise countermeasure affect portal vein cross-sectional area and orthostatic intolerance in subjects undergoing 90-day head-down tilt bed rest?
Flywheel exercise countermeasures during 90-day bed rest reduced splanchnic network distention at rest but did not prevent orthostatic intolerance, which appears related to lower splanchnic arterial vasoconstriction.
Arbeille et al. (2005) studied this question.
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