Key result
Mild exercise during acute moderate normobaric hypoxia significantly reduced arterial oxygen saturation (83.0% vs 96.6%) and cerebral oxygenation compared to normoxia, without altering hemodynamics.
Why the study?
Hemodynamic changes during exercise in acute hypoxia have not been completely elucidated.
Does mild exercise during acute moderate hypoxia affect hemodynamics, arterial oxygen saturation, and cerebral oxygenation in physically active males compared to normoxia?
Comparison
Exercise during normobaric acute hypoxia (13.5% inspired oxygen) vs normoxia
Design
Randomized crossover trial
Authors
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Supports caution monitoring oxygenation during hypoxic exercise; extends physiological data on desaturation-hemodynamic responses in active males.
RCT (n=22)
Randomly assigned
Does mild exercise during acute moderate hypoxia affect hemodynamics, arterial oxygen saturation, and cerebral oxygenation in physically active males compared to normoxia?
Absolute Event Rate: 83% vs 96.6%
Mild exercise during acute moderate hypoxia reduces arterial and cerebral oxygenation without significantly altering hemodynamics in healthy active males.
Mulliri et al. (2022) conducted an RCT in Healthy (n=22). Moderate normobaric acute hypoxia (13.5% inspired oxygen) during exercise vs. Normoxia was evaluated on Peripheral arterial oxygen saturation (SatO2). Mild exercise during acute moderate normobaric hypoxia significantly reduced arterial oxygen saturation (83.0% vs 96.6%) and cerebral oxygenation compared to normoxia, without altering hemodynamics.
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