Heart rate variability (HRV) is a function of cardiac autonomic tone that is widely used in both
clinical and animal studies. In preclinical studies, HRV measures are frequently derived …

The measurement and analysis of heart rate variability (HRV), which is based on the
variation between consecutive NN intervals, has become an established procedure over the …

The human heart generates the quintessential biological signal: the heartbeat. A recording
of the cardiac-induced skin potentials at the body's surface, an electrocardiogram (ECG) …

CONCLUSION In the 2nd century AD, Wang Shu Ho stated,“If the heartbeat gets as regular
as the knocking of the woodpecker or the dripping of the rain on the roof, the patient will die …

Analysis of heart rate variability (HRV) is a non-invasive technique useful for investigating
autonomic function in both humans and animals. It has been used for research into both …

Short-term assessment of heart rate variability (HRV) is a non-invasive technique to examine
ANS function. Within the literature, HRV is commonly referred to as a reliable measurement …

Heart rate variability (HRV) is an indicator of the autonomic nervous system to the heart,
especially reflecting sympathetic and parasympathetic system activities. HRV become …

To investigate heart rate and its variability, a telemetry device was affixed to 16 healthy,
young cats. Prior to inclusion in the study, cats were subject to echocardiographic …

Heart rate variability (HRV) is often analysed using short-term studies. Our objective was to
compare two of them in a group of diabetic patients (reduced HRV) and in a control group …

There are various factors affecting autonomic regulation of the heart, including but not
limited to respiration, thermoregulation, humoral regulation (renin-angiotensin system) …