The Scaling Exponent Calculated by the Detrended Fluctuation Analysis, Distinguishes the Injured Sick Hearts Against Normal Healthy Hearts

We analyzed heartbeat-intervals with our own program of detrended fluctuation analysis (DFA) to quantify the irregularity of the heartbeat. The present analysis revealed that normal healthy subjects have the scaling exponent of 1.0, and ischemic heart disease pushes the scaling exponent up to 1.2 1.<br />5. We conclude that the scaling exponent, calc..