Respiratory sinus arrhythmia in humans: how breathing pattern modulates heart rate.

@article{Hirsch1981RespiratorySA,
  title={Respiratory sinus arrhythmia in humans: how breathing pattern modulates heart rate.},
  author={Judith A. Hirsch and Beverly P. Bishop},
  journal={The American journal of physiology},
  year={1981},
  volume={241 4},
  pages={
          H620-9
        }
}
The relationship of respiratory sinus arrhythmia amplitude (RSA) to tidal volume and breathing frequency was quantified during voluntarily controlled tidal volume and breathing frequency and spontaneous quiet breathing. Seventeen seated subjects breathed via mouthpiece and nose-clip, maintaining constant tidal volumes at each of several breathing frequencies. Inspiratory breath hold was zero frequency. Log RSA was plotted vs. log frequency for each tidal volume. The large stable RSA for… 

Figures from this paper

Normalization of respiratory sinus arrhythmia by factoring in tidal volume.

  • H. Kobayashi
  • Medicine
    Applied human science : journal of physiological anthropology
  • 1998
A normalized RSA (RSA amplitude/% Vt) is proposed as a new index of autonomic activity that provides a constant value regardless of Vt, which is a more effective index in normalizing RSA than raw tidal volume.

Human sinus arrhythmia: inconsistencies of a teleological hypothesis.

The hypothesis that RSA optimizes pulmonary gas exchange efficiency via clustering of heart beats in inspiration is not supported and the results of this study do not support the hypothesis.

The respiratory sinus arrhythmia as a function of breathing frequency revisited

In the power spectrum, the area of the RSA as a function of breathing frequency was measured and a non-linear behavior is found which is considerably different to uncorrected spectra.

Improving estimation of cardiac vagal tone during spontaneous breathing using a paced breathing calibration.

This study demonstrates a novel procedure for computing a respiratory unrelated RSA index and tested an adjustment method using transfer function analysis and paced breathing at 3 different respiratory frequencies as the basis for regressing out respiratory related RSA changes in a task where breathing was not controlled.

A MATLAB toolbox for correcting within-individual effects of respiration rate and tidal volume on respiratory sinus arrhythmia during variable breathing

Respiratory sinus arrhythmia (RSA) is a common estimator of vagal outflow to the heart, dependent on parasympathetic activity. During variable breathing, both respiration rate and tidal volume

Respiratory Sinus Arrhythmia as an Index of Vagal Activity during Stress in Infants: Respiratory Influences and Their Control

It is concluded that stress-induced changes of peak-valley RSA and effects of variations in breathing patterns on RSA can be determined for a representative percentage of infant breaths and needs to be considered in studies of infant psychophysiology.

Influence of breathing frequency on the pattern of respiratory sinus arrhythmia and blood pressure: old questions revisited.

The results illustrate nonlinear respiration-RSA-blood pressure relationships that may yield new insights to the fundamental mechanism of RSA in humans and suggest that temporal dependencies associated with alterations in breathing frequency are unrelated to cardiac sympathetic modulation.

Respiratory sinus arrhythmia in young men and women at different chest wall configurations.

The results, globally taken, are compatible with the notion that in humans changes in lung volume are detected by lung mechanoreceptors, whereas chest wall reflexes play no role in RSA.

The relationships between heart rate deceleration capacity and spectral indices of heart rate variability during different breathing frequencies

DC is strongly correlated with the spectral index of the LHF band, indicating that they are controlled by similar influences under the conditions used in this study.
...

References

SHOWING 1-10 OF 57 REFERENCES

Effects of Respiratory Center Activity on the Heart

Rhythmic fluctuations in heart rate and ventricular contractility at the frequency of the respiratory movements were observed in innervated, isovolumetric, canine, left ventricle preparations and sympathetic influences appear to predominate in the mediation of the contractility waves.

Baroreceptor and chemoreceptor influences on heart rate during the respiratory cycle in the dog.

Brief chemoreceptor or baroreceptor stimuli remained effective in evoking prompt decreases in heart rate during periods of apnoea in the end‐inspiratory position (Hering‐Breuer inflation reflex), but were sometimes ineffective at first, but were always effective late in the period of apNoea, again producing prompt cardiac slowing.

Spectral analysis of sinus arrhythmia during mental loading.

A technique is presented for digitally processing cardiac intervals to produce the low-pass filtered cardiac event sequence (LPFCES), a regularly sampled (in time) band-limited signal, representing

Reflex bradycardia occurring in response to diving, nasopharyngeal stimulation and ocular pressure, and its modification by respiration and swallowing.

Bradycardia occurs in normal human subjects during immersion of the face in water ('diving') and in human subjects it is reduced when inspiratory efforts are made against a closed glottis, and during diving or the application of ocular pressure, swallowing reduces the reflex bradycardsia which these evoke.

Circulatory responses from lung inflation in anesthetized dogs.

  • R. Hainsworth
  • Biology, Medicine
    The American journal of physiology
  • 1974
Three experiments define the conditions favoring different responses from inflation of one lung with different pressures and help to explain the differing reports of previous investigators.

RESPIRATORY SINUS ARRHYTHEMIA: A FREQUENCY DEPENDENT PHENOMENON.

An examination of respiratory sinus arrhythmia is presented. Sinusoidal breathing was varied over a wide frequency range and the amplitude and phase of the accompanying fluctuations of heart rate w...

The activity of the medullary centres in diffusion respiration

This study has examined the activity of the medullary centres during diffusion respiration in animals in which natural breathing had been abolished by deep thiopentone anaesthesia which directly depresses the respiratory centre or by succinylcholine (Scoline) which blocks neuromuscular transmission.

Reflexogenic Areas of the Cardiovascular System

  • C. Heymans
  • Medicine
    Perspectives in biology and medicine
  • 1960
Experiments done between 1877 and 1926 showed that a rise of blood pressure in the carotid-cephalic circulation induces bradycardia and a fall of the systemic arterial pressure, while a drop in the vehicle pressure provokes acceleration of the heart rate and a rise in the systemicarterial pressure.

Cardiac Denervation in Diabetes

Measurement of beat-to-beat variation provides a simple test whereby cases of autonomic neuropathy can be screened for cardiac involvement and suggests that spontaneous vagal denervation of the heart was present in the cases studied.

Respiratory sinus arrhythmia: laws derived from computer simulation.

  • M. Clynes
  • Medicine
    Journal of applied physiology
  • 1960
Dynamic mathematical relations describing respiratory sinus arrhythmia were derived through analogue computer simulation. If a signal proportional to thorax circumference is fed into the analogue c...
...