Key result
Sleep-stage transitions increased cardiorespiratory phase synchronization by 400% from REM/wake to light/deep sleep, a pattern remaining stable despite a 40% overall reduction in elderly subjects.
Observational
Sleep regulation has a significantly stronger effect on cardiorespiratory coupling than healthy aging, with CRPS representing a distinct aspect of cardiorespiratory interaction compared to respiratory sinus arrhythmia.
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Sleep regulation may outweigh aging in CRPS; hypothesis-generating before clinical adoption or outcome trials.
Bartsch et al. (2012) conducted an observational in Healthy subjects. Sleep-stage transitions and aging was evaluated on Cardiorespiratory phase synchronization (CRPS). Sleep-stage transitions increased cardiorespiratory phase synchronization by 400% from REM/wake to light/deep sleep, a pattern remaining stable despite a 40% overall reduction in elderly subjects.
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