January 1, 2004Psychosomatic Medicine
Acute Stress Affects Heart Rate Variability During Sleep
Key result
Acute presleep stress decreased parasympathetic modulation during NREM and REM sleep and increased sympathovagal balance during NREM sleep compared to control.
Why the study?
Does acute presleep stress alter heart rate variability during sleep in healthy adults?
Population
59 healthy men and women
Comparison
Acute stress condition vs Control condition
Design
RCT, randomly assigned
Follow-up
throughout the night
Authors
Discussion
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Implication
Presleep stress may disrupt sleep via autonomic imbalance; extends RCT evidence linking acute stress to nocturnal HRV changes in healthy adults.
Study Design
Type
RCT (n=59)
Randomization
Randomized
Structured PICO
Does acute presleep stress alter heart rate variability during sleep in healthy adults?
P
Population
59 healthy men and women
I
Intervention
Acute stress condition (standard speech task paradigm in the immediate presleep period)
C
Comparator
Control condition
O
Outcome
Heart rate variability during sleep (parasympathetic modulation via high frequency component and sympathovagal balance via ratio of low to high frequency power)surrogate
Acute presleep stress alters autonomic balance during sleep by decreasing parasympathetic modulation and increasing sympathovagal balance, which may contribute to sleep disturbances.
Cite This Study
Hall et al. (2004) conducted an RCT in Healthy (n=59). Acute stress (standard speech task) vs. Control condition was evaluated on Heart rate variability (parasympathetic modulation and sympathovagal balance). Acute presleep stress decreased parasympathetic modulation during NREM and REM sleep and increased sympathovagal balance during NREM sleep compared to control.