Results 41 to 50 of about 1,424,468 (388)

Heart rate variability analysis [PDF]

open access: yesActa Physiologica Hungarica, 2001
The expansion of heart rate variability analysis has been facilitated by the remarkable development of computer sciences and digital signal processing during the last thirty years. The beat-to-beat fluctuation of the heart rate originates from the momentary summing of sympathetic and parasympathetic influences on the sinus node.
Hejjel, L., Gál, I.
openaire   +4 more sources

Analysis of heart rate variability

open access: yesBangabandhu Sheikh Mujib Medical University Journal, 2016
No abstract is ...
Noorzahan Begum
doaj   +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

Changes in heart rate and heart rate variability as a function of age in Thoroughbred horses. [PDF]

open access: yes, 2017
We investigated changes in heart rate (HR) and HR variability as a function of age in newborn foals to old Thoroughbred horses. Experiments were performed on a total of 83 healthy and clinically normal Thoroughbred horses.
Jones, James H, Ohmura, Hajime
core   +1 more source

RapidHRV: an open-source toolbox for extracting heart rate and heart rate variability [PDF]

open access: yesPeerJ, 2022
Heart rate and heart rate variability have enabled insight into a myriad of psychophysiological phenomena. There is now an influx of research attempting using these metrics within both laboratory settings (typically derived through electrocardiography or
Peter A. Kirk   +3 more
doaj   +2 more sources

Artificial intelligence for heart rate variability analyzing with arrhythmias [PDF]

open access: yes, 2019
Introduction. Existing standards of Heart Rate Variability (HRV) technology limit its use to sinus rhythm. A small number of extrasystoles is allowed, if the device used has special procedures for the detection and replacement of ectopic complexes ...
Marchitto, N.   +3 more
core   +1 more source

A healthy heart is not a metronome: an integrative review of the heart's anatomy and heart rate variability

open access: yesFrontiers in Psychology, 2014
Heart rate variability (HRV), the change in the time intervals between adjacent heartbeats, is an emergent property of interdependent regulatory systems that operate on different time scales to adapt to challenges and achieve optimal performance.
F. Shaffer   +2 more
semanticscholar   +1 more source

Obesity, Nutrition and Heart Rate Variability

open access: yesInternational Journal of Molecular Sciences, 2021
Heart rate variability (HRV) represents the activity and balance of the autonomic nervous system and its capability to react to internal and external stimuli.
Anna Strüven   +3 more
semanticscholar   +1 more source

Determinants of heart rate variability

open access: yesJournal of the American College of Cardiology, 1996
This study sought to examine clinical determinants of heart rate variability and to report normative reference values for eight heart rate variability measures.Although the clinical implications of heart rate variability have been described, clinical determinants and normative values of heart rate variability measures have not been studied ...
Hisako Tsuji   +6 more
openaire   +3 more sources

Case study: Monitoring the effectiveness of aromatherapeutic breathing with heart rate variability biofeedback

open access: yesHeart and Mind, 2021
Heart rate variability (HRV) can be used as an objective measure of mental health and workplace stress. Workplace stress is associated with poor performance and organizations desire optimal performance from employees.
Adrian Low, Stella Chan
doaj   +1 more source

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