Gender related differences in scaling structure of heart-rate and blood-pressure variability as assessed by detrended fluctuation analysis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Women, which have lower risks of cardiovascular events, are characterized by higher heart rate entropy. Aim of this study is to evaluate whether also the fractal structure of heart rate and blood pressure, as quantified by DFA, differs between men and women. In 33 male and 23 female volunteers, we recorded R-R intervals (RRI) and systolic (S) and diastolic (D) blood pressure (BP) for 10' in 3 conditions: supine rest, sitting at rest and sitting during exercise. We calculated a spectrum of scale exponent α(t) as function of the time scale t, by DFA. We also calculated traditional spectral indexes for assessing cardiac and vascular autonomic tone. We found gender related differences in α(t) only during supine rest. Women had significantly lower α(t) of RRI at scales 60s. Results may in part be explained by gender differences in cardiac autonomic tone at rest.

Original languageEnglish
Title of host publicationComputing in Cardiology
Pages137-140
Number of pages4
Volume37
Publication statusPublished - 2010
EventComputing in Cardiology 2010, CinC 2010 - Belfast, United Kingdom
Duration: Sep 26 2010Sep 29 2010

Other

OtherComputing in Cardiology 2010, CinC 2010
CountryUnited Kingdom
CityBelfast
Period9/26/109/29/10

ASJC Scopus subject areas

  • Computer Science Applications
  • Cardiology and Cardiovascular Medicine

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