Results 241 to 250 of about 2,866,241 (276)
Some of the next articles are maybe not open access.
Cardiorespiratory interactions in patients with atrial flutter
Journal of Applied Physiology, 2009Respiratory sinus arrhythmia (RSA) is generally known as the autonomically mediated modulation of the sinus node pacemaker frequency in synchrony with respiration. Cardiorespiratory interactions have been largely investigated during sinus rhythm, whereas little is known about interactions during reentrant arrhythmias.
Masè, Michela +2 more
openaire +2 more sources
Cardiorespiratory interaction in vasovagal syncope
Heart, 2008A fall in cerebral perfusion is the final common pathway leading to syncope. While we commonly investigate syncope as though the only cause of loss of perfusion is loss of arterial pressure, there is another possible contributing factor: failure of cerebral autoregulation.1 Cerebral autoregulation is the intrinsic ability of cerebral vasculature to ...
R. Baruah, D. P Francis, R. Sutton
openaire +1 more source
Cardiorespiratory Interactions in Neural Circulatory Control in Humans
Annals of the New York Academy of Sciences, 2001Abstract: The reflex mechanisms and interactions described in this overview provide some explanation for the range of neural circulatory responses evident during changes in breathing. The effects described represent the integrated responses to activation of several reflex mechanisms, including peripheral and central chemoreflexes, arterial ...
A S, Shamsuzzaman, V K, Somers
openaire +2 more sources
Cardiorespiratory interactions during resistive load breathing
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 2000The addition to the respiratory system of a resistive load results in breathing pattern changes and in negative intrathoracic pressure increases. The aim of this study was to use resistive load breathing as a stimulus to the cardiorespiratory interaction and to examine the extent of the changes in heart rate variability (HRV) and respiratory sinus ...
P, Calabrese +4 more
openaire +2 more sources
Identification of coupling direction: Application to cardiorespiratory interaction
Physical Review E, 2002We consider the problem of experimental detection of directionality of weak coupling between two self-sustained oscillators from bivariate data. We further develop the method introduced by Rosenblum and Pikovsky [Phys. Rev. E 64, 045202 (2001)], suggesting an alternative approach. Next, we consider another framework for identification of directionality,
Michael G, Rosenblum +4 more
openaire +2 more sources
Impact of eurythmy therapy on cardiorespiratory interaction
European Journal of Integrative Medicine, 2009Objectives Mind–body therapies combine body movements and accompanying guided imagery. Eurythmy therapy (harmonious rhythm, EYT) is a mind–body therapy that is based on the principles of Anthroposophic Medicine. It uses harmonious body movements and guided imagery according to the state of movement.
F. Edelhäuser +3 more
openaire +1 more source
Cardiorespiratory interactions to external stimuli.
Archives italiennes de biologie, 2005Respiration is a powerful modulator of heart rate variability, and of baro- or chemo-reflex sensitivity. This occurs via a mechanical effect of breathing that synchronizes all cardiovascular variables at the respiratory rhythm, particularly when this occurs at a particular slow rate coincident with the Mayer waves in arterial pressure (approximately 6 ...
Bernardi, L +3 more
openaire +2 more sources
Coupled oscillators approach to identification of directionality in cardiorespiratory interaction
2002 14th International Conference on Digital Signal Processing Proceedings. DSP 2002 (Cat. No.02TH8628), 2003A previously proposed method aimed to identify the directionality of interaction in weakly coupled oscillator systems is presented, tested on simulated data and applied to the problem of experimental detection of directionality of cardiorespiratory interaction in healthy newborns.
Laura Cimponeriu +4 more
openaire +2 more sources
Cardiorespiratory interactions during fixed-pace resistive breathing
Journal of Applied Physiology, 1996We tested the hypothesis that the arterial baroreflex was important in the origin of respiratory sinus arrhythmia (RSA) under conditions of normal and resistive breathing. That is, mechanical effects of breathing [indicated by instantaneous lung volume (ILV)] would directly influence left ventricular stroke volume (LVSV), which in turn would influence
A P, Blaber, R L, Hughson
openaire +2 more sources
Control of the Heart and of Cardiorespiratory Interactions in Ectothermic Vertebrates
2009The functional anatomy of the respiratory and cardiovascular systems and the neuro-anatomy and neuro-physiology of the systems that are implicated in the co-ordination of cardiac output with ventilation are reviewed in fish, including air-breathing fish, amphibians and reptiles. Recent data is reviewed in the light of previous studies on mammals.
Taylor, E.W., Wang, Tobias
openaire +1 more source