Introduction In recent times, an upsurge in the investigation related to the effects of
meditation in reconditioning various cardiovascular and psychological disorders is seen. In …

The Poincaré plot is a visual representation of the RR time series within a Cartesian plane
constructed by plotting each RR interval as a function of the previous one. The plot can be …

Interest in human emotion recognition, regarding physiological signals, has recently risen. In
this study, an efficient emotion recognition system, based on geometrical analysis of …

Heart rate variability (HRV) analysis has become a widely used tool for monitoring
pathological and psychological states in medical applications. In a typical classification …

Meditation and yoga have growing popularity in recent times due to its effectiveness in
reducing stress, anxiety, and elevating overall well-being. To study its exertion on human …

Background and aim Heart rate variability (HRV) quantifies the variability in the heart's beat-
to-beat intervals. This signal is a potential marker of cardiac function in normal, pathological …

Purpose The heart is a complex system and many researchers have been recently studying
cardiac behavior using the theory of nonlinear dynamical systems. One of the most …

Recording, monitoring, and analyzing biological signals has received significant attention in
medicine. A fundamental phase for understanding a bio-system under various conditions is …

The aim of this study was to analyze the recovery of heart rate variability (HRV) after
treadmill exercise and to investigate the autonomic nervous system response after exercise …

Background: Physical and mathematical theories have made it possible to generate
methods for the characterization and diagnosis of physiological variables such as cardiac …