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Spectral Statistics of RR Intervals in ECG


Martinis, Mladen; Mikuta-Martinis, Vesna; Knežević, Andrea; Črnugelj, Josip
Spectral Statistics of RR Intervals in ECG // Progress of Theoretical Physics Supplement, 150 (2003), 381-387 (međunarodna recenzija, članak, znanstveni)


Naslov
Spectral Statistics of RR Intervals in ECG

Autori
Martinis, Mladen ; Mikuta-Martinis, Vesna ; Knežević, Andrea ; Črnugelj, Josip

Izvornik
Progress of Theoretical Physics Supplement (0375-9687) 150 (2003); 381-387

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
heartbeat intervals; fluctuations; distributions

Sažetak
The statistical properties (fluctuations) of heartbeat intervals (RR intervals) in ECG are studied and compared with the predictions of Random Matrix Theory (RMT). It is found that heartbeat intervals only locally exhibit the fluctuation patterns (universality) predicted by the RMT. This finding shows that heartbeat dynamics is of the mixed type where regular and irregular (chaotic) regimes coexist and the Berry-Robnik theory can be applied. It is also observed that the distribution of heartbeat intervals is well described by the one-parameter Brody distribution. The parameter $\beta$ of the Brody distribution is seen to be connected with the dynamical state of the heart.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
0098004

Ustanove
Institut "Ruđer Bošković", Zagreb

Citiraj ovu publikaciju

Martinis, Mladen; Mikuta-Martinis, Vesna; Knežević, Andrea; Črnugelj, Josip
Spectral Statistics of RR Intervals in ECG // Progress of Theoretical Physics Supplement, 150 (2003), 381-387 (međunarodna recenzija, članak, znanstveni)
Martinis, M., Mikuta-Martinis, V., Knežević, A. & Črnugelj, J. (2003) Spectral Statistics of RR Intervals in ECG. Progress of Theoretical Physics Supplement, 150, 381-387.
@article{article, year = {2003}, pages = {381-387}, keywords = {heartbeat intervals, fluctuations, distributions}, journal = {Progress of Theoretical Physics Supplement}, volume = {150}, issn = {0375-9687}, title = {Spectral Statistics of RR Intervals in ECG}, keyword = {heartbeat intervals, fluctuations, distributions} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus