Results 51 to 60 of about 1,424,468 (388)

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

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

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

Heart rate and heart rate variability in infants during olfactory stimulation

open access: yesAnnals of Human Biology, 2019
Background: Various plant odours have been shown to decrease heart rate and increase parasympathetic nervous activity. However, ‘innate’ autonomic responses without the influences of experience, assumptions and prejudices of odours remains unclear.
Yuko Tsunetsugu, Keita Ishibashi
doaj   +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

Heart Rate Variability and Coronary Artery Bypass Grafting: A Systematic Review

open access: yesReviews in Cardiovascular Medicine
Background: Coronary artery bypass grafting (CABG) is a well-established surgical procedure used to treat significant coronary artery disease. Nevertheless, unfavorable cardiovascular events and complications, including cardiac arrhythmias may be ...
Patrycja S. Matusik   +7 more
doaj   +1 more source

Heart Rate Variability in Insulo-Opercular Epilepsy

open access: yesBrain Sciences, 2021
Background: We aimed to evaluate heart rate variability (HRV) changes in insulo-opercular epilepsy (IOE) and after insulo-opercular surgery. Methods: We analyzed 5-min resting HRV of IOE patients before and after surgery. Patients’ SUDEP-7 risk inventory
Thi Phuoc Yen Tran   +8 more
doaj   +1 more source

Heart Rate Variability: New Perspectives on Physiological Mechanisms, Assessment of Self-regulatory Capacity, and Health risk

open access: yesGlobal Advances in Health and Medicine, 2015
Heart rate variability, the change in the time intervals between adjacent heartbeats, is an emergent property of interdependent regulatory systems that operates on different time scales to adapt to environmental and psychological challenges. This article
R. McCraty, F. Shaffer
semanticscholar   +1 more source

Assessment of fetal heart rate variability and velocity variability by Doppler velocimetry of the descending aorta at 10-20 weeks of gestation [PDF]

open access: yes, 1999
Objectives: Determination of gestational age-related modulations in fetal heart rate and descending aorta blood flow velocity in the early human fetus and comparison of aortic variability data with data obtained from the umbilical artery.
Clark, E.B.   +4 more
core   +3 more sources

Heart Rate Variability and Cognitive Function: A Systematic Review

open access: yesFrontiers in Neuroscience, 2019
Background: Autonomic dysfunctions may precede the development of cognitive impairment, but the connection between these dimensions is unclear. This systematic review aims to analyze the relationship between heart rate variability (HRV) and cognitive ...
G. Forte, F. Favieri, M. Casagrande
semanticscholar   +1 more source

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