heart rate variability


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Related to heart rate variability: heart rate range

heart rate variability

Abbreviation: HRV
Spontaneous fluctuations above and below the mean heart rate. A reduced HRV is associated with an increased incidence of total mortality and cardiac events in post-myocardial infarction patients, as well as in apparently healthy individuals, esp. older persons.
See also: variability
References in periodicals archive ?
2009) Time-frequency analysis of heart rate variability reveals cardiolocomotor coupling during dynamic cycling exercise in humans.
Heart rate variability which is evaluated as a determinant of autonomous nervous system has gained significance as a research method in adults and children and limited number of studies have been performed in newborns related with this matter (26,27).
The circadian rhythm of selected parameters of heart rate variability.
Chronic high dose captopril decreases total heart rate variability and increases heart rate in C57BL/6J mice.
Furthermore, there are no studies available to address a racial difference in post-exercise HRV The primary aim of this investigation was to determine the difference in heart rate recovery (HRR) and heart rate variability (HRV) after a maximal treadmill test between white and black college-age men.
Some authors propose altered heart rate variability in ADHD children (16) or changes in autonomic profiles in behaviour-disorder in preschool children (17).
The spa requires that all guests undergo an 80-minute comprehensive head-to-toe assessment; a variety of tests such as the cardiometabolic stress test, heart rate variability, lipid analysis, and insulin sensitivity; and a profile of major organ systems.
When this function, known as heart rate variability (HRV) is reduced, a person is more at risk of heart disease and death.
Previous studies have shown that people with depression exhibit decreased heart rate variability, as well as lower circulating levels of omega-3 fatty acids.
After comparing twins, researchers found a connection between depression and decreased heart rate variability.
A check of heart rate variability shows how the heart responds to deep breathing and to changes in blood pressure and posture.