Changes in fractal structure of heart rate variability during a nap in one case.

Abstract:

:The objective of the present study was to analyze fractal structures of adult heart rate (HR) variability during a nap. Fractal analysis was carried out in one case over consecutive 10-min time series of HR, which were simultaneously recorded with electroencephalogram. Scaling relationships showed cross-over patterns characterized by alphas and alphal (i.e. slopes above and below a cross-over point). The alphas and alphal were black and white noise at Stage 4 of NREM sleep, and black and 1/f noise in REM sleep. Cross-over points changed from the first to second sleep cycle. We demonstrate the multifractal structures of HR variability during a nap in the present case.

authors

Shono H,Shono M,Takasaki M,Iwasaka T,Sugimori H

doi

10.1046/j.1440-1819.2001.00814.x

subject

Has Abstract

pub_date

2001-06-01 00:00:00

pages

175-6

issue

3

eissn

1323-1316

issn

1440-1819

pii

814

journal_volume

55

pub_type

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