Metrics of heart period variability are widely used in the behavioral and biomedical sciences,
although somewhat confusingly labeled as heart rate variability (HRV). Despite their wide …

The autonomic nervous system as operating system of the human organism permeats all
organ systems with its pathways permeating that it is involved with virtually all diseases …

In this work we study the characteristics of heart rate variability (HRV) as a function of age
and gender. Our analysis covers a wider age range than that studied so far. It includes …

Heart rate (HR) variability (HRV; beat-to-beat changes in the R-wave to R-wave interval) has
attracted considerable attention during the past 30+ years (PubMed currently lists> 17 000 …

The neural regulation of circulatory function is mainly effected through the interplay of the
sympathetic and vagal outflows. This interaction can be explored by assessing …

This consensus statement has been compiled on behalf of the International Society for
Holter and Noninvasive Electrophysiology. It reviews the topic of heart rate turbulence (HRT) …

Heart rate variability (HRV) is significantly associated with average heart rate (HR),
therefore, HRV actually provides information on two quantities, that is, on HR and its …

The arterial baroreflex contributes importantly to the short-term regulation of blood pressure
and cardiovascular variability. A number of factors (including reflex, humoral, behavioral …

Objectives: This study was designed to evaluate autonomic changes preceding atrial
fibrillation/flutter (AF) after thoracotomy. Background: Autonomic fluctuations before the …

Hyperpolarization-activated, cyclic nucleotide–gated (HCN) channels are important
members of the voltage-gated pore loop channels family. They show unique features: they …