2 citations · 4 across the 3 of their papers we have counts for
3 papers
physics.med-ph2003★ 1 cited
Spectral Statistics of RR Intervals in ECG
M. Martinis, V. Mikuta-Martinis, A. Knezevic +1
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…
physics.med-ph2002★ 1 cited
Changes in the Hurst exponent of heartbeat intervals during physical activities
M. Martinis, A. Knežević, G. Krstačić +1
The fractal scaling properties of the heartbeat time series are studied in a controlled ergometric regime using the Hurst rescaled range R/S analysis. The long-time "memory effect"…
physics.med-ph2001★ 2 cited
Non-Linear Dynamics In Patients With Stable Angina Pectoris
G. Krstacic, M. Martinis, E. Vargovic +2
We investigate the clinical and prognostic significance of fractal dimension and detrended fluctuation analysis by comparing the group of patients with stable angina pectoris witho…