Circadian Rhythms of Spectral Components of Heart Rate Variability

Author

Wu, G.Q. ; Shen, L.L. ; Tang, D.K. ; Zheng, D.A. ; Poon, C.-S.

Author_Institution

Dept. of Mech. & Eng. Sci., Fudan Univ., Shanghai

fYear

2006

fDate

Aug. 30 2006-Sept. 3 2006

Firstpage

3557

Lastpage

3560

Abstract

Circadian rhythms of heart rate variability have been widely studied in recent years. However, most previous reports described such rhythms in terms of normalized units of the low- and high-frequency (LF and HF) spectral components. In this study, we analyzed circadian rhythms of spectral components in absolute units and found unexpected results in normal subjects as well as coronary heart disease (CHD) and congestive heart failure (CHF) patient groups. The results indicate that the notion of sympathovagal balance needs to be re-evaluated

Keywords

cardiovascular system; circadian rhythms; diseases; spectral analysis; absolute units; circadian rhythms; congestive heart failure patients; coronary heart disease subjects; heart rate variability; normal subjects; spectral components; sympathovagal balance; Cardiac disease; Circadian rhythm; Cities and towns; Failure analysis; Hafnium; Heart beat; Heart rate variability; Parasympathetic nervous system; Spectral analysis; USA Councils;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE

Conference_Location

New York, NY

ISSN

1557-170X

Print_ISBN

1-4244-0032-5

Electronic_ISBN

1557-170X

Type

conf

DOI

10.1109/IEMBS.2006.260595

Filename

4462565