Abstract
The role of heart rate (HR) variability as advanced sensoring method allowing to assess human functional state is presented. HR being derived from a single bio-signal (measured from RR intervals of one electrocardiogram lead) during different functional tests such as active orthostatic test, physical and mental loads, day-time activity or sleep stages offers a numerous physiologically relevant parameters. HR analysis methods are ascribed in time and frequency domains. Advanced sensoring using HR variability patterns represents a patient-friendly monitoring method which in some cases may substitute multichannel obtrusive recordings of numerous physiological signals.
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