Key result
Repetitive acoustically-induced arousals from sleep prevented normal increases in ABR and RSA gains during increasing sleep depth and increased low-frequency oscillations of systolic blood pressure.
Why the study?
Does repetitive arousal from sleep alter cardiovascular autonomic control in healthy young adults?
Population
10 healthy young adults with an average age of 20.4 +/- 2.0 years and mean body-mass index of 23.8 +/- 2.9…
Comparison
Repetitive auditory stimuli applied continuously… vs Undisturbed sleep (control condition).
Follow-up
50 minutes per condition
Authors
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May link arousals to autonomic dysregulation; hypothesis-generating for CV risk in sleep disorders.
Does repetitive arousal from sleep alter cardiovascular autonomic control in healthy young adults?
Repetitive arousals from sleep prevent the normal increases in autonomic baroreflex and respiratory sinus arrhythmia gains that accompany increasing sleep depth.
Chaicharn et al. (2008) studied Healthy young adults (n=10). Repetitive acoustically-induced arousals from sleep vs. Undisturbed sleep was evaluated on ABR and RSA gains and low-frequency oscillations of systolic blood pressure. Repetitive acoustically-induced arousals from sleep prevented normal increases in ABR and RSA gains during increasing sleep depth and increased low-frequency oscillations of systolic blood pressure.
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