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Interaction between Heart Rate and Heart Rate Variability [PDF]

open access: yesAnnals of Noninvasive Electrocardiology, 2014
Heart rate variability (HRV) is significantly associated with average heart rate (HR), therefore, HRV actually provides information on two quantities, that is, on HR and its variability. It is difficult to conclude which of these two plays a principal role in the HRV clinical value, or in other words, what is the HR contribution to the clinical ...
Jerzy Sacha
exaly   +3 more sources
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Heart Rate Variability

Annals of Internal Medicine, 1993
To present an overview of the applicability of heart rate variability measurements in medicine.During a 4-year period all new papers concerning heart rate variability were collected. A selection of the most recent publications in the presented research area was used for this review.The amount of short- and long-term variability in heart rate reflects ...
C M, van Ravenswaaij-Arts   +4 more
openaire   +2 more sources

Analysis of Heart Rate Variability and Implication of Different Factors on Heart Rate Variability

open access: yesCurrent Cardiology Reviews, 2021
Background: The heart is the central organ of the circulatory system which maintains the flow of blood along with the transport of nutrients to different cells and tissues. A well-functioning cardiac state is a complicated mode of changeability. A healthy heart is not only about oscillation as the rhythmometer is not the same in every circumstance ...
Tiwari, Reena   +4 more
exaly   +3 more sources

Heart rate and heart rate variability in emergency medicine

The American Journal of Emergency Medicine, 2020
Tachycardia may be indicative of mental stress, which in turn can decrease performance, reduce information processing capacity, and hinder memory recall. The objective of this study is to examine heart rate trends present among emergency medicine trainees over a standard emergency room shift to measure the frequency and severity of stress experienced ...
Shane, Jenks   +5 more
openaire   +2 more sources

Heart Rate Variability

Veterinary Clinics of North America: Small Animal Practice, 1998
Heart rate variability (HRV), usually performed from 24 hour ambulatory ECG recordings, measures the variability of the heart rate. Alterations in autonomic balance and baroreceptor function, increased plasma norepinephrine levels, and reduced HRV have been associated with progressive myocardial failure.
openaire   +4 more sources

Heart Rate Variability Today

Progress in Cardiovascular Diseases, 2012
Heart rate variability (HRV) non-invasively assesses the activity of the autonomic nervous system. During the past 30 years, an increasing number of studies have related the imbalance of the autonomic nervous system (as assessed by HRV) to several pathophysiogical conditions, particularly in the setting of cardiovascular disease. Sudden death, coronary
B. Xhyheri   +4 more
openaire   +2 more sources

Heart rate variability

2013
Heart rate variability (HRV) provides indirect insight into autonomic nervous system tone, and has a well-established role as a marker of cardiovascular risk. Recent decades brought an increasing interest in HRV assessment as a diagnostic tool in detection of autonomic impairment, and prediction of prognosis in several neurological disorders.
Iwona, Cygankiewicz, Wojciech, Zareba
openaire   +2 more sources

Heart Rate and Heart-Rate Variability: An Attempt to Clarify

Perceptual and Motor Skills, 1968
2 experiments were conducted to investigate a possible relationship of heart rate among and within individuals and to investigate the relationship between HR level and two temporal measures of HR variability. In Exp. 1 records for 18 normal male volunteers yielded a linear relationship between the autocorrelation and HR level which
J A, Burdick, J T, Scarbrough
openaire   +2 more sources

Pulse rate variability is not a surrogate for heart rate variability

Clinical Science, 1999
To investigate the differences between heart rate (HR) variability and pulse rate (PR) variability, short-term variability of finger pulse wave and ECG signals were studied in 10 children with a fixed ventricular pacemaker rhythm (80 beats/min). Ten healthy children in sinus rhythm served as a reference population.
I, Constant   +3 more
openaire   +2 more sources

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