Results 231 to 240 of about 36,230 (266)

Respiratory Sinus Arrhythmia

Chest, 2004
Fumihiko Yasuma, Jun-ichiro Hayano
openaire   +1 more source

[Determination of respiratory frequency from respiratory sinus arrhythmia].

Biomedizinische Technik. Biomedical engineering, 1997
In the clinical setting, the observation of undisturbed spontaneous respiration and direct measurement of an "unbiased" respiratory rate is not a practical option. However, the respiratory modulation of the heart rate (respiratory sinus arrhythmia, RSA) offers a possibility of recording the respiratory rate indirectly.
H, Bettermann, P, Engelke, P, van Leeuwen, C, Heckmann   +3 more
openaire   +1 more source

Postural Effect on Respiratory Sinus Arrhythmia with Various Respiratory Frequencies.

APPLIED HUMAN SCIENCE Journal of Physiological Anthropology, 1996
Heart rate variations during steady state respiration with various frequencies were studied on seven healthy male students at two different body positions. Respiration was controlled at four different frequencies (0.083, 0.100, 0.200, 0.250Hz), and the tidal volume was simultaneously controlled at 1500ml (0.083, 0.100Hz) or 1000ml (0.200, 0.250Hz).
openaire   +2 more sources

RESPIRATORY SINUS ARRHYTHMIA

Anesthesia & Analgesia, 1988
B L Pfeifer, H L Sernaker, S W Porges
openaire   +1 more source

[Mathematical model of "respiratory sinus arrhythmia"].

Wiener medizinische Wochenschrift (1946), 1996
We developed a mathematical model of "respiratory" sinus arrhythmia. The model combines a representation continuous in time of the parasympathetic and sympathetic innervation and the membrane potential of the pace maker cell of the heart with a beat-by-beat representation of the cardiovascular variables like diastolic and systolic blood pressure, pulse
M, Schiek, F R, Drepper, H H, Abel
openaire   +1 more source

The contemporary management of cancers of the sinonasal tract in adults

Ca-A Cancer Journal for Clinicians, 2023
Rajat Thawani
exaly  

Respiratory Sinus Arrhythmia

2021
openaire   +1 more source

Respiratory Sinus Arrhythmia

2013
Kristine M. Molina, Kristine M. Molina, Heather Honoré Goltz, Marc A. Kowalkouski, Stacey L. Hart, David Latini, J. Rick Turner, J. Rick Turner, Leah Rosenberg, Sarah Piper, Leah Rosenberg, Sarah Piper, Timothy Wolf, Paul A. Estabrooks, Samantha M. Harden, Kacie C. Allen, Laura Rodriguez-Murillo, Rany M. Salem, J. Rick Turner, Jennifer Wessel, J. Rick Turner, Bengt H. Sjölund, M. Kathleen B. Lustyk, J. Rick Turner, Hiroe Kikuchi, Yori Gidron, Stephen Gallagher, Warren Tierney, Jennifer Wortmann, Login S. George, Crystal L. Park, Chad Barrett, Stephen Gallagher, Warren Tierney, Salvatore Insana, George J. Trachte, Ulrike Ehlert, Simona Fischbacher, J. Rick Turner, Marianne Shaughnessy, Bonnie Spring, Alex Pictor, Andrew DeMott, Molly Ferguson, Arlen C. Moller, Judith Carroll, Chris Dunkel Schetter, Susanne Fischer, Roland Thomeé, Randall Steven Jorgensen, Jane Monaco, Toshihide Hashimoto, Alexandra Martin, Bernt Lindahl, Catherine Darker, Tereza Killianova, Jana Strahler, Stephanie Ann Hooker, Yori Gidron   +58 more
openaire   +1 more source

Respiratory Sinus Arrhythmia: A literature review

World Journal of Biology Pharmacy and Health Sciences
Respiratory sinus arrhythmia (RSA) is a natural variation in heart rate that occurs in synchrony with breathing and serves as a noninvasive indicator of vagal tone. This literature review summarizes current knowledge of RSA and its relevance in physiological and psychological contexts.
openaire   +1 more source

Electroimmunology and cardiac arrhythmia

Nature Reviews Cardiology, 2021
Jana Grune, Matthias Nahrendorf
exaly