Recent research has defined the concept of cardiac coherence, which describes an ideal sympathovagal balance, i.e. respiratory sinus arrhythmia.

In measuring heart rate variability, researchers computed what is known to cardiologists as respiratory sinus arrhythmia (RSA).

In measuring heart rate variability, researchers calculated what is known to cardiologists as respiratory sinus arrhythmia (RSA).

The pulse waveform is induced by a combination of the pressure wave and respiratory sinus arrhythmia produced by controlled breathing exercises.

On a tachogram, cardiac coherence corresponds to respiratory sinus arrhythmia, and it appears as a sinusoid-shaped curve which reflects the influence of vagal tone.

Respiratory system irritation; heart arrhythmia at high concentrations

Respiratory bradycardia is not considered a true arrhythmia.

Respiratory sinus arrhythmia: autonomic origins, physiological mechanisms, and psychophysiological implications.

Respiratory sinus arrhythmia: Autonomic origins, physiological mechanisms, and psychophysiological implications.

These rythmic oscillations, which are caused by breathing, are called respiratory sinus arryhtmia (RSA).

Cardiac arrhythmia or respiratory insufficiency usually does not occur during attacks.

If not treated, these can progress into seizures, cardiac arrhythmia, shock, and respiratory distress.

In homeostasis condition, the HRV modulation is mainly due to the respiration, generating a known Respiratory Sinus Arrhythmia (RSA).

Higher exposures produce unconsciousness leading to death from respiratory failure or severe cardiac arrhythmia.

Recent research has defined the concept of cardiac coherence, which describes an ideal sympathovagal balance, i.e. respiratory sinus arrhythmia.