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Reliability of heart rate variability during stable and disrupted polysomnographic sleep

Kerkering, Emma M ; Greenlund, Ian M ; Bigalke, Jeremy A ; Migliaccio, Gianna C L ; Smoot, Carl A ; Carter, Jason R

American journal of physiology. Heart and circulatory physiology, 2022-07, Vol.323 (1), p.H16-H23 [Periódico revisado por pares]

United States: American Physiological Society

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  • Título:
    Reliability of heart rate variability during stable and disrupted polysomnographic sleep
  • Autor: Kerkering, Emma M ; Greenlund, Ian M ; Bigalke, Jeremy A ; Migliaccio, Gianna C L ; Smoot, Carl A ; Carter, Jason R
  • Assuntos: Autonomic Nervous System - physiology ; Bradycardia ; Cardiovascular diseases ; Female ; Frequency domain analysis ; Health risks ; Heart rate ; Heart Rate - physiology ; Humans ; Male ; Rapid eye movement state ; Reliability ; Reproducibility of Results ; Sleep ; Sleep (REM) ; Sleep - physiology ; Sleep Stages - physiology ; Time domain analysis
  • É parte de: American journal of physiology. Heart and circulatory physiology, 2022-07, Vol.323 (1), p.H16-H23
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Heart rate variability (HRV) is commonly used within sleep and cardiovascular research, yet HRV reliability across various sleep stages remains equivocal. The present study examined the reliability of frequency- and time-domain HRV within stage-2 (N2), slow-wave (SWS), and rapid-eye-movement (REM) sleep during both stable and disrupted sleep. We hypothesized that high-frequency (HF) HRV would be reliable in all three sleep stages, low-frequency (LF) HRV would be reliable during N2 and SWS, and that disrupted sleep via spontaneous cortical arousals would decrease HRV reliability. Twenty-seven participants (11 men, 16 women, 26 ± 1 yr) were equipped with laboratory polysomnography for 1 night. Both frequency- and time-domain HRV were analyzed in two 5- to 10-min blocks during multiple stable and disrupted sleep cycles across N2, SWS, and REM sleep. HF HRV was highly correlated across stable N2 ( = 0.839, < 0.001), SWS ( = 0.765, < 0.001), and REM ( = 0.881, < 0.001). LF HRV was moderate-to-highly correlated during stable cycles of N2 sleep ( = 0.694, < 0.001), SWS, ( = 0.765, < 0.001), and REM ( = 0.699, < 0.001) sleep. When stable sleep was compared with disrupted sleep, both time- and frequency-domain HRV were reliable (α > 0.90, < 0.05) in N2, SWS, and REM, except for LF HRV during SWS (α = 0.62, = 0.089). In conclusion, time- and frequency-domain HRV demonstrated reliability across stable N2, SWS, and REM sleep, and remained reliable during disrupted sleep. These findings support the use of HRV during sleep as a tool for assessing cardiovascular health and risk stratification. Heart rate variability (HRV) is a commonly employed indirect estimate of cardiac autonomic activity during sleep with limited reliability studies. Nocturnal frequency-domain HRV was reliable across differing stable sleep cycles of stage-2 (N2), slow-wave (SWS), and rapid-eye-movement (REM) sleep. Moreover, frequency- and time-domain HRV were reliable during stable and disturbed sleep, except SWS low-frequency HRV. Our finding supports nocturnal HRV as a potential tool for cardiovascular risk stratification.
  • Editor: United States: American Physiological Society
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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