Unexpected Course of Nonlinear Cardiac Interbeat Interval Dynamics during Childhood and Adolescence
Figure 4
Course of the fractal and complexity measures during childhood and adolescence.
Slope β – long-term fractal scaling properties, DFA α2 – intermediate-term fractal scaling properties, DFA α1 – short-term fractal scaling properties, ApEn - complexity. The dots represent 24 hour averages. Solid and dashed lines show moving average and the fitted polynomial model of order 3, respectively.
