Figure 2.

Effects of the artificial premature beats on fractal scaling analysis in post‐AMI patients and healthy subjects. Mean values of the α₁ and α₂ analyses are in function of the amount of the premature beats. α₁ and α₂ indicate the scaling exponents analyzed by detrended fluctuation analysis from short and intermediate time windows respectively. The symbols indicate following prematurity: ——= original (0% premature beats), ––= 30% prematurity, ‐ ‐ ‐‐ ‐ ‐ = 20% prematurity, and ‐ ‐ ‐‐ ‐ ‐ = 10% prematurity.