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Interaction between Heart Rate and Heart Rate Variability [PDF]

Annals of Noninvasive Electrocardiology, 2014
Heart rate variability (HRV) is significantly associated with average heart rate (HR), therefore, HRV actually provides information on two quantities, that is, on HR and its variability. It is difficult to conclude which of these two plays a principal role in the HRV clinical value, or in other words, what is the HR contribution to the clinical ...
openaire   +2 more sources

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

Reviews 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, Omar Alomar, Maryam Rafaqat Hussain, Muhammad Akrmah, Paweł T. Matusik, Daniel M. Chen, Muhammed Alomar, Phyllis K. Stein   +7 more
doaj   +1 more source

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

Heart 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

Heart rate and heart rate variability in infants during olfactory stimulation

Annals 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 isolated rabbit heart

Journal of the American College of Cardiology, 1996
The presence of heart rate variability (HRV) in patients with cardiac denervation after heart transplantation raised our interest in HRV of isolated, denervated hearts. Hearts from seven adult white ELCO rabbits were transferred to a perfusion apparatus. All hearts were perfused in the working mode and in the Langendorff mode for 20 minutes each.
Frey, Bernhard, Heger, Georg, Kriegler, Bert, Kos, Thomas, Mayer, Christian, Steurer, Günter   +5 more
openaire   +2 more sources

HEART RATE VARIABILITY IN HEMODIALYSIS PATIENTS

Український Журнал Нефрології та Діалізу, 2017
There are a small number of works that have studied heart rhythm variability parameters in patients treated with hemodialysis. Aim. To investigate the peculiarities of heart rhythm variability parameters in patients treated with hemodialysis ...
O. M. Loboda, I. O. Dudar, Y. I. Gonchar
doaj   +1 more source

Heart Rate Variability and Exceptional Longevity

Frontiers in Physiology, 2020
Centenarians are the paradigm of human extreme longevity and healthy aging, because they have postponed, if not avoided, mayor age-related diseases. The purpose of this study was to investigate potential differences in resting heart rate variability (HRV)
Adrián Hernández-Vicente, Adrián Hernández-Vicente, David Hernando, David Hernando, Alejandro Santos-Lozano, Alejandro Santos-Lozano, Gabriel Rodríguez-Romo, Gabriel Rodríguez-Romo, Germán Vicente-Rodríguez, Germán Vicente-Rodríguez, Germán Vicente-Rodríguez, Germán Vicente-Rodríguez, Esther Pueyo, Esther Pueyo, Raquel Bailón, Raquel Bailón, Nuria Garatachea, Nuria Garatachea, Nuria Garatachea, Nuria Garatachea   +19 more
doaj   +1 more source

Heart Rate Variability in Insulo-Opercular Epilepsy

Brain 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, Philippe Pouliot, Elie Bou Assi, Pierre Rainville, Kenneth A. Myers, Manon Robert, Alain Bouthillier, Mark R. Keezer, Dang Khoa Nguyen   +8 more
doaj   +1 more source

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

FEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source