Blood pressure variability includes rhythmic and nonrhythmic fluctuations that, with the use
of spectral analysis, appear as clear peaks or broadband power, respectively. This review …

Beat-to-beat fluctuations in heart rate (HR) or instantaneous HR is mainly determined by
activity of the cardiac sympathetic and parasympathetic systems. Despite the need for …

The last two decades have witnessed the recognition of a significant relationship between
the autonomic nervous system and cardiovascular mortality, including sudden cardiac …

Background The clinical relevance of HRV was first appreciated in 1965 when Hon and Lee
6 noted that fetal distress was preceded by alterations in interbeat intervals before any …

Heart rate is a vital sign, whereas heart rate variability is an important quantitative measure
of cardiovascular regulation by the autonomic nervous system. Although the design of …

We describe a system for the evaluation of the sleep macrostructure on the basis of Emfit
sensor foils placed into bed mattress and of advanced signal processing. The signals on …

Although paying taxes is a key element of a well-functioning society, there is still limited
understanding as to why people actually pay their taxes. Models emphasizing that taxpayers …

The autonomic regulation is non-invasively estimated from heart rate variability (HRV). Many
methods utilized to assess autonomic regulation require stationarity of HRV recordings …

There are numerous methods and approaches available for time-series analysis. This
chapter presents selected methods, which are or at least could be useful when analyzing …

This paper presents a method for obstructive sleep apnea (OSA) screening based on the
electrocardiogram (ECG) recording during sleep. OSA is a common sleep disorder …