Heart rate variability, the change in the time intervals between adjacent heartbeats, is an
emergent property of interdependent regulatory systems that operates on different time …

Sudden cardiac death (SCD) represents about 25% of deaths in clinical cardiology. The
identification of risk factors for SCD is the philosopher's stone of cardiology and the …

Background Experimental evidence suggests that autonomic markers such as heart-rate
variability and baroreflex sensitivity (BRS) may contribute to post-infarction risk stratification …

Measurement of heart rate variability (HRV) is a non-invasive technique that can be used to
investigate the functioning of the autonomic nervous system, especially the balance …

The autonomic nervous system dynamically controls the response of the body to a range of
external and internal stimuli, providing physiological stability in the individual. With the …

Heart rate variability (HRV) has been associated with various diseases and reflects
autonomic cardiac control sensitive to central nervous system function. Examples of the …

This long-term study examined relationships between solar and magnetic factors and the
time course and lags of autonomic nervous system (ANS) responses to changes in solar and …

The adaptability of heart to external and internal stimuli is reflected by the heart rate
variability (HRV). Reduced HRV can be a predictor of negative cardiovascular outcomes …

Dysfunction of the peripheral and central autonomic nervous system is common in many
neurological and general medical diseases. The quantitative assessment of sympathetic …

Heart rate variability (HRV) is a useful tool for the detection of sympathetic-parasympathetic
balance in the autonomic nervous system. Autonomic nervous system involvement in …