Key result
Cardio-respiratory phase synchronization is significantly enhanced during non-REM sleep (3.8%) and reduced during REM sleep (0.6%) compared to wakefulness (1.6%).
Population
112 healthy subjects
Design
Other
Follow-up
average 7.9 hours
Authors
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Cardiorespiratory synchronization varies by sleep stage; hypothesis-generating for autonomic regulation and should not yet change practice.
Observational (n=112)
Yes
Effect estimate: 6.3-fold difference
Absolute Event Rate: 3.8% vs 0.6%
Cardiorespiratory phase synchronization is enhanced during non-REM sleep and suppressed during REM sleep, suggesting that higher brain region activity imposes correlated noise that disturbs synchronization.
Bartsch et al. (2007) conducted an observational in Healthy (n=112). Sleep stages (REM vs non-REM) vs. Wakefulness was evaluated on Percentage of cardio-respiratory phase synchronization (6.3-fold difference). Cardio-respiratory phase synchronization is significantly enhanced during non-REM sleep (3.8%) and reduced during REM sleep (0.6%) compared to wakefulness (1.6%).
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