Heart rate variability–a historical perspective
GE Billman - Frontiers in physiology, 2011 - frontiersin.org
Heart rate variability (HRV), the beat-to-beat variation in either heart rate or the duration of
the R–R interval–the heart period, has become a popular clinical and investigational tool …
the R–R interval–the heart period, has become a popular clinical and investigational tool …
Photoplethysmographic derivation of respiratory rate: a review of relevant physiology
DJ Meredith, D Clifton, P Charlton… - Journal of medical …, 2012 - Taylor & Francis
An abnormal respiratory rate is often the earliest sign of critical illness. A reliable estimate of
respiratory rate is vital in the application of remote telemonitoring systems, which may …
respiratory rate is vital in the application of remote telemonitoring systems, which may …
Cardiorespiratory interactions in humans and animals: rhythms for life
M Elstad, EL O'Callaghan, AJ Smith… - American Journal …, 2018 - journals.physiology.org
The cardiorespiratory system exhibits oscillations from a range of sources. One of the most
studied oscillations is heart rate variability, which is thought to be beneficial and can serve …
studied oscillations is heart rate variability, which is thought to be beneficial and can serve …
Cardiorespiratory coupling: common rhythms in cardiac, sympathetic, and respiratory activities
Cardiorespiratory coupling is an encompassing term describing more than the well-
recognized influences of respiration on heart rate and blood pressure. Our data indicate that …
recognized influences of respiration on heart rate and blood pressure. Our data indicate that …
Evaluating the physiological significance of respiratory sinus arrhythmia: looking beyond ventilation–perfusion efficiency
A Ben‐Tal, SS Shamailov… - The Journal of physiology, 2012 - Wiley Online Library
Key points• Respiratory sinus arrhythmia (RSA) is the variation of heart rate with breathing:
heart rate increases during inspiration and decreases during expiration.• RSA is seen in …
heart rate increases during inspiration and decreases during expiration.• RSA is seen in …
Brainstem sources of cardiac vagal tone and respiratory sinus arrhythmia
Key points Cardiac vagal tone is a strong predictor of health, although its central origins are
unknown. Respiratory‐linked fluctuations in cardiac vagal tone give rise to respiratory sinus …
unknown. Respiratory‐linked fluctuations in cardiac vagal tone give rise to respiratory sinus …
Resting state connectivity of the medial prefrontal cortex covaries with individual differences in high‐frequency heart rate variability
JR Jennings, LK Sheu, DCH Kuan… - …, 2016 - Wiley Online Library
Resting high‐frequency heart rate variability (HF‐HRV) relates to cardiac vagal control and
predicts individual differences in health and longevity, but its functional neural correlates are …
predicts individual differences in health and longevity, but its functional neural correlates are …
Respiratory–cardiovascular interactions
Much of biology is rhythmical and comprises oscillators that can couple. These have
optimized energy efficiency and have been preserved during evolution. The respiratory and …
optimized energy efficiency and have been preserved during evolution. The respiratory and …
[HTML][HTML] Respiratory sinus arrhythmia is mainly driven by central feedforward mechanisms in healthy humans
M Skytioti, M Elstad - Frontiers in Physiology, 2022 - frontiersin.org
Heart rate variability (HRV) has prognostic and diagnostic potential, however, the
mechanisms behind respiratory sinus arrhythmia (RSA), a main short-term HRV, are still not …
mechanisms behind respiratory sinus arrhythmia (RSA), a main short-term HRV, are still not …
Processing of central and reflex vagal drives by rat cardiac ganglion neurones: an intracellular analysis
RM McAllen, LM Salo, JFR Paton… - The Journal of …, 2011 - Wiley Online Library
Non‐technical summary The brain controls the heart through parasympathetic (vagal) and
sympathetic nerves. Vagal control is integral to cardiac health and a loss of vagal tone is a …
sympathetic nerves. Vagal control is integral to cardiac health and a loss of vagal tone is a …