Results 11 to 20 of about 1,485,561 (395)

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

open access: yesCurrent Cardiology Reviews, 2020
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.
Reena Tiwari   +4 more
semanticscholar   +3 more sources

Heart Rate Variability - A Historical Perspective [PDF]

open access: yesFrontiers in Physiology, 2011
Heart rate variability (HRV), the beat-to-beat variation in either heart rate or the duration of the R-R interval – the heart period, has become a popular clinical and investigational tool.
George E Billman
doaj   +3 more sources

Circadian rhythm of heart rate and heart rate variability [PDF]

open access: yesArchives of Disease in Childhood, 2000
Measurements of heart rate variability (HRV) are increasingly used as markers of cardiac autonomic activity.To examine circadian variation in heart rate and HRV in children.A total of 57 healthy infants and children, aged 2 months to 15 years, underwent ambulatory 24 hour Holter recording.
Massin, M. M.   +4 more
openaire   +2 more sources

Heart Rate Variability and Pain: A Systematic Review

open access: yesBrain Science, 2022
Background and Objective: Heart rate variability (HRV) as an index of the autonomic nervous system appears to be related to reactivity to experimental pain stimuli.
G. Forte   +4 more
semanticscholar   +1 more source

Heart rate variability in patients with anxiety disorders: A systematic review and meta‐analysis

open access: yesPsychiatry and Clinical Neurosciences, 2022
Patients with anxiety disorders (AD) have been found to have lower heart rate variability (HRV) than healthy individuals in some studies, but this was inconsistent.
Ying-Chih Cheng   +4 more
semanticscholar   +1 more source

Heart Rate Variability Modulates Interoceptive Accuracy

open access: yesFrontiers in Neuroscience, 2021
Our emotional experiences depend on our interoceptive ability to perceive and interpret changes in our autonomous nervous system. An inaccurate perception and interpretation of autonomic changes impairs our ability to understand and regulate our ...
Alexander Lischke   +3 more
doaj   +1 more source

Practices and Applications of Heart Rate Variability Monitoring in Endurance Athletes

open access: yesInternational Journal of Sports Medicine, 2022
Heart rate variability reflects fluctuations in the changes in consecutive heartbeats, providing insight into cardiac autonomic function and overall physiological state.
C. Lundstrom   +2 more
semanticscholar   +1 more source

Addition of 24‐Hour Heart Rate Variability Parameters to the Cardiovascular Health Study Stroke Risk Score and Prediction of Incident Stroke: The Cardiovascular Health Study

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2017
BackgroundHeart rate variability (HRV) characterizes cardiac autonomic functioning. The association of HRV with stroke is uncertain. We examined whether 24‐hour HRV added predictive value to the Cardiovascular Health Study clinical stroke risk score (CHS‐
Rohan K. Bodapati   +4 more
doaj   +1 more source

MENTAL STATUS AND HEART RATE VARIABILITY [PDF]

open access: yes, 2008
The results let us suppose that there are at least three periodical phenomena of HRV in frequency range related with mental status. Two of them have not been discovered and physiologically explained yet.
Mukhin, Dr Valery
core   +1 more source

An Overview of Heart Rate Variability Metrics and Norms

open access: yesFrontiers in Public Health, 2017
Healthy biological systems exhibit complex patterns of variability that can be described by mathematical chaos. Heart rate variability (HRV) consists of changes in the time intervals between consecutive heartbeats called interbeat intervals (IBIs).
F. Shaffer, J. Ginsberg
semanticscholar   +1 more source

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