Respiratory sinus arrhythmia (RSA) of healthy humans is dependent on multiple factors like
heart rate itself, blood pressure, stroke volume and sympatho-vagal tone. Respiration is a …

Respiratory sinus arrhythmia (RSA) is often quantified by computing the spectra of heart
period (HP) or of its reciprocal heart rate (HR) at the respiratory frequency. This study was …

Background: Respiratory modulation of autonomic input to the sinus node results in cyclical
modulation of heart rate, known as respiratory sinus arrhythmia (RSA). We hypothesized that …

1. Respiratory modulation of cardiac parasympathetic activity and the relationship between
respiratory sinus arrhythmia and parasympathetic control has been studied in twenty‐nine …

The aim of this study was to test our hypothesis that both phasic cardiac vagal activity and
tonic pulmonary vagal activity, estimated as respiratory sinus arrhythmia (RSA) and …

Ventilation related heart rate oscillations–respiratory sinus arrhythmia (RSA)–originate in
human from several mechanisms. Two most important of them–the central mechanism …

During inspiration the heart rate (HR) increases and during expiration it decreases.
Contribution of respiratory sinus arrhythmia (RSA) to spontaneous heart rate variability …

The effect of tidal volume (VT) and of the intrathoracic pressure (Poes) on the respiratory
sinus arrhythmia (RSA) was studied in healthy subjects. They breathed into a spirometer …

Respiratory sinus arrhythmia (RSA) is an acceleration of heart rate during inspiration and
deceleration with expiration. We asked whether or not in humans some of the volume …

Respiratory sinus arrhythmia (RSA) is frequently employed as an intra‐and interindividual
index of cardiac parasympathetic tone, although the relationship of RSA to interindividual …