| Power spectral analysis of heart rate in relation to sleep position. | |
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MedLine Citation:
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PMID: 15084809 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We used spectral analysis of heart rate variability, as a measure of autonomic tone, to determine spectral power differences in infants sleeping supine and prone. We studied 29 infants with a birth weight of 1,915 +/- 939 g, at the postconceptional age of 36 +/- 2 weeks. We then calculated total power (TP), low-frequency power (LF, 0.03-0.15 Hz), and high-frequency power (HF, 0.5-1.0 Hz). TP corresponds to overall heart rate variability, LF to both sympathetic and parasympathetic activity, and HF to parasympathetic activity only. Median (25th, 75th percentile) TP (beats/min2) in the supine position was 32.60 (23.12, 59.90), which was significantly higher than the prone position of 25.87 (14.94, 35.57). Similarly, LF (beats/min2) in the supine position of 13.82 (8.63, 23.31) was significantly higher than the prone position of 9.79 (5.46, 14.33). No significant difference was seen in the HF. We conclude that the prone position is associated with decreased heart rate variability and probably decreased sympathetic tone, which imply decreased autonomic stability in this position. |
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Authors:
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Magali Jean-Louis; Mujahid Anwar; Har'el Rosen; William Craelius; Mark Hiatt; Thomas Hegyi |
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Publication Detail:
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Type: Journal Article Date: 2004-04-08 |
Journal Detail:
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Title: Biology of the neonate Volume: 86 ISSN: 0006-3126 ISO Abbreviation: Biol. Neonate Publication Date: 2004 |
Date Detail:
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Created Date: 2004-08-12 Completed Date: 2005-01-25 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0247551 Medline TA: Biol Neonate Country: Switzerland |
Other Details:
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Languages: eng Pagination: 81-4 Citation Subset: IM |
Copyright Information:
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Copyright 2004 S. Karger AG, Basel |
Affiliation:
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Division of Neonatology, UMDNJ-Robert Wood Johnson Medical School and St Peter's University Hospital, New Brunswick, NJ 08903, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Birth Weight Female Gestational Age Heart Rate / physiology* Humans Infant, Newborn Infant, Premature / physiology* Male Posture* Prone Position Sleep* Spectrum Analysis* Supine Position |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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