Circadian rhythm of spectral indices of heart rate variability in healthy subjects

被引:60
作者
Bilan, A [1 ]
Witczak, A [1 ]
Palusinski, R [1 ]
Myslinski, W [1 ]
Hanzlik, J [1 ]
机构
[1] Tech Univ Lublin, Sch Med, Dept Internal Med, PL-20081 Lublin, Poland
关键词
heart rate variability; circadian pattern;
D O I
10.1016/j.jelectrocard.2005.01.012
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Circadian pattern of heart rate variability spectral indices, including hourly, 24-hour, night, day, morning, and sex-adjusted measures of low frequency (U), high frequency (HF), and LF/HF, was evaluated in healthy persons in 24-hour 3-lead electrocardiogram. HF showed circadian pattern with the greatest night values and LF/HF with the smallest night values. Peaks of hourly LF were found between 5 and 9 AM and between 4 and 6 PM. The smallest LF was between 11 Pm and 3 AM. Hourly HF peaked between 11 PM and 5 AM. The smallest HF was observed between midday and 2 PM. LF/HF peaked between 6 and 9 Am as well as between 4 and 6 PM with the smallest values between midnight and 5 AM. Sex adjustment was of no significance. In healthy subjects, HF and LF/HF have circadian pattern. Evaluation of all 5-minute intervals of 24-hour period seems to be a precise method of heart rate variability analysis. (c) 2005 Elsevier Inc. All rights reserved.
引用
收藏
页码:239 / 243
页数:5
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