Adequate sympathetic nervous system activation is essential for the compensatory
mechanisms of blood pressure maintenance during the hemodialysis (HD) procedure …

Diseases caused by alterations of ionic concentrations are frequently observed challenges
and play an important role in clinical practice. The clinically established method for the …

This article provides an accessible introduction to recurrence analysis—an analytical
approach that has great promise for helping researchers understand group dynamics …

Background Intradialytic hypotension (IDH) carries adverse impact. Heart rate variability
(HRV) represents autonomic cardiac regulation which influences intradialytic blood …

Exploring the presence of nonlinearity through surrogate data testing provides insights into
the nature of physical and biological systems like those obtained from heart rate variability …

The scaling properties of heart rate variability data are reliable dynamical features to predict
mortality and for the assessment of cardiovascular risk. The aim of this manuscript was to …

Linear heart rate variability (HRV) indices are dependent on the mean heart rate, which has
been demonstrated in different models (from sinoatrial cells to humans). The association …

Recurrence quantitative analysis (RQA) indices of heart rate variability (HRV) have shown a
different adjustment in the sympathetic-driven dynamical response to active standing (AS) …

Recurrence quantitative analysis (RQA) of heart rate variability (HRV) is helpful for the non-
invasive study of the regulation of the cardiovascular system by the autonomic nervous …

Heart rate variability (HRV) is a noninvasive approach to studying the autonomic modulation
of heart rate in experimental settings, such as active standing sympathetic stimulation. It is …