A NEW METHOD FOR ANALYSIS OF HEART-RATE-VARIABILITY - COUNTING STATISTICS OF 1/F FLUCTUATIONS

被引:21
作者
MEESMANN, M
GRUNEIS, F
FLACHENECKER, P
KNIFFKI, KD
机构
[1] FACHHSCH MUNICH,W-8000 MUNICH 2,GERMANY
[2] UNIV WURZBURG,NEUROL KLIN,W-8700 WURZBURG,GERMANY
[3] UNIV WURZBURG,INST PHYSIOL,W-8700 WURZBURG,GERMANY
关键词
D O I
10.1007/BF00201855
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
1/f fluctuations in heart rate are usually measured by spectral analysis using Fast Fourier Transform. Here, we introduce a new method based on counting the number of QRS complexes in time intervals DELTAt of various length. For a 1/f(b) spectrum the variance of counts in DELTAt follows a power-law as DELTAt1+b. This method is applied to analyze long term fluctuations in heart rate variability in 10 healthy men. The results show periods of 1/f fluctuations with interpolated periods of white noise during night hours.
引用
收藏
页码:299 / 306
页数:8
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