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A new method for analysis of heart rate variability: counting statistics of 1/ffluctuations

✍ Scribed by Malte Meesmann; Ferdinand Grüneis; Peter Flachenecker; Klaus-Dietrich Kniffki

Publisher
Springer-Verlag
Year
1993
Tongue
English
Weight
674 KB
Volume
68
Category
Article
ISSN
0340-1200

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✦ Synopsis

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 At of various length. For a l/J* spectrum the variance of counts in A t follows a power-law as A t 1 + b. This method is applied to analyze long term fluctuations in heart rate variability in 10 healthy men. The results show periods of 1If fluctuations with interpolated periods of white noise during night hours.

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