Results 41 to 50 of about 1,713,582 (410)

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

Stress and Heart Rate Variability: A Meta-Analysis and Review of the Literature

open access: yesPsychiatry Investigation, 2018
Objective Physical or mental imbalance caused by harmful stimuli can induce stress to maintain homeostasis. During chronic stress, the sympathetic nervous system is hyperactivated, causing physical, psychological, and behavioral abnormalities. At present,
Hye-Geum Kim   +4 more
semanticscholar   +1 more source

Influence of blood glucose on heart rate and cardiac autonomic function. The DESIR study. [PDF]

open access: yes, 2011
International audienceOBJECTIVES:   To evaluate in a general population, the relationships between dysglycaemia, insulin resistance and metabolic variables, and heart rate, heart rate recovery and heart rate variability. METHODS:   Four hundred and forty-
A. Haggui   +8 more
core   +4 more sources

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

A Critical Review of Ultra-Short-Term Heart Rate Variability Norms Research

open access: yesFrontiers in Neuroscience, 2020
Heart rate variability (HRV) is the fluctuation in time between successive heartbeats and is defined by interbeat intervals. Researchers have shown that short-term (∼5-min) and long-term (≥24-h) HRV measurements are associated with adaptability, health ...
F. Shaffer   +2 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

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

Heart rate variability in male rats

open access: yesPhysiological Reports, 2023
The cardiovascular system is primarily controlled by the autonomic nervous system, and any changes in sympathetic or parasympathetic activity also have an impact on myocardial activity.
Pavol Švorc Jr   +2 more
doaj   +1 more source

Interaction between heart rate variability and heart rate in pediatric population.

open access: yesFrontiers in Physiology, 2015
Background: Heart rate variability (HRV) is primarily heart rate (HR) dependent, and therefore, different HR may exert different impact on HRV. The objectives of the study were to evaluate the effect of HR on HRV in children and to determine whether HRV ...
Jakub Sławomir Gąsior   +5 more
doaj   +1 more source

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

Home - About - Disclaimer - Privacy