Results 11 to 20 of about 1,485,561 (395)
Analysis of Heart Rate Variability and Implication of Different Factors on Heart Rate Variability
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]
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]
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
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
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
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
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
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]
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
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

