vagal tone


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vagal tone

Etymology: L, vagus, wandering; Gk, tonos, stretching
1 the level of activity in the parasympathetic nervous system.
2 the inhibitory control of the vagus nerve over heart rate and atrioventricular conduction.
References in periodicals archive ?
Given the literature on the relationship between low vagal tone and low developmental scores later in infancy, this group may be at risk for delays in cognitive development.
1,2,4,12] This central effect results in decreased sympathetic outflow and enhanced vagal tone, lowering blood pressure and heart rate.
Food and Drug Administration approval to begin the second phase of INOVATE-HF (INcrease Of VAgal TonE in Heart Failure), a global, multi-center, investigational device exemption (IDE) clinical study of the company's CardioFit[R] system for heart failure.
17,18] Statistically significant reduction in pulse rate after regular practice of yoga is attributed to increased vagal tone.
8] Increased vagal tone has been implicated in the development of Brugada ECG changes.
We have the opportunity to directly influence vagal tone from the moment a child is born.
Patients with uncomplicated coronary artery disease have reduced heart rate variability mainly affecting vagal tone.
Increased sympathetic and decreased vagal tone can interact with all of the electro-physiological mechanisms underlying arrhythmogenesis.
The physiological data were quantified by playing the tape-recorded EKG into a vagal tone monitor developed by Porges (1985), a procedure that revealed the heart period variability within the frequency band associated with spontaneous breathing.
BioControl Medical,a medical technology company that develops and markets advanced implantable devices for the treatment of autonomic disorders, has announced first patient enrollment in the INOVATE-HF (INcrease Of VAgal TonE in Heart Failure) clinical study at Northwest Texas Heart Hospital, Amarillo, Texas, by study investigator Suresh Neelagaru, M.
Athletes show a better cardiac functioning attributed to their enhanced vagal tone, which in turn causes a resting bradycardia.
At rest, heart rate is controlled predominantly by parasympathetic nerves travelling in the Vagus and there is high baseline vagal tone.