Results 31 to 40 of about 1,464,866 (395)
Heart rate variability analysis [PDF]
Acta 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
Heart rate variability in male rats
Physiological 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
A pilot study of patch Holter electrocardiograph recordings in healthy cats [PDF]
Open Veterinary Journal, 2022 Background: A patch Holter electrocardiograph (P-Holter) is cordless, making it lightweight unlike the conventional Holter electrocardiograph (C-Holter). A P-Holter can also take continuous measurements. For up to 14 days without replacing the battery or
Mizuki Ogawa +5 more
doaj +1 more source
Artificial intelligence for heart rate variability analyzing with arrhythmias [PDF]
, 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
The effect of age on the heart rate variability of healthy subjects
PLoS ONE, 2021 In this work we study the characteristics of heart rate variability (HRV) as a function of age and gender. Our analysis covers a wider age range than that studied so far.
Leopoldo Garavaglia +4 more
semanticscholar +1 more source
Stress and Heart Rate Variability: A Meta-Analysis and Review of the Literature
Psychiatry 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
Analysis of heart rate variability
Bangabandhu Sheikh Mujib Medical University Journal, 2016 No abstract is ...
Noorzahan Begum
doaj +1 more source
Frontiers 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
Interaction between heart rate variability and heart rate in pediatric population.
Frontiers 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
Determinants of heart rate variability
Journal 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