Results 51 to 60 of about 892,215 (229)

Respiratory sinus arrhythmia in freely moving and anesthetized rats.

open access: yes, 2004
Heart rate increases during inspiration and slows during postinspiration; this respiratory sinus arrhythmia helps match pulmonary blood flow to lung inflation and maintain an appropriate diffusion gradient of oxygen in the lungs.
Andresen, M. C.   +16 more
core   +1 more source

Human biomarker navigator

open access: yesiMeta, EarlyView.
The Human Biomarker Navigator integrates the disease continuum, biomarker dynamics, cross‐organ biomarker networks, biomarker classification, and technology‐driven paradigms. It maps how biomarkers link multi‐system physiology and pathology across the nervous, respiratory, endocrine, circulatory, immune, digestive, urinary, reproductive, and ...
Meng‐Yao Li   +29 more
wiley   +1 more source

Early behavioral and physiological markers of social anxiety in infants with fragile X syndrome

open access: yesJournal of Neurodevelopmental Disorders, 2021
Background Social anxiety is highly prevalent in neurotypical children and children with fragile X syndrome (FXS). FXS is a genetic syndrome that is characterized by intellectual disability and an increased risk for autism spectrum disorder.
Conner J. Black   +3 more
doaj   +1 more source

Acute Effects of Smoking and Vaping on Markers of Vascular Function via Quantitative MRI

open access: yesJournal of Magnetic Resonance Imaging, EarlyView.
ABSTRACT Background E‐cigarettes contribute to endothelial dysfunction, a known cause of systemic atherosclerotic disease that cannot be adequately characterized by a single physiological parameter measured at a single vascular bed. Purpose/Hypothesis Quantify and compare acute effects of smoking or vaping with tobacco cigarettes (t‐cigs), nicotinized ...
Marianne Nabbout   +9 more
wiley   +1 more source

Respiratory Sinus Arrhythmia and Emotional Reactions

open access: yesPsychological Topics, 2015
Respiratory sinus arrhythmia (RSA), which is considered to reflect parasympathetic activity, has received an increased scientific interest during the last several decades.
Asmir Gračanin
doaj  

Investigação dos efeitos de anestesia sobre a variabilidade cardíaca [PDF]

open access: yes, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2012Dada a grande variabilidade da resposta fisiológica, um determinado volume de anestésico pode ser ...
Okida, Sérgio
core  

Emergencies in Amyotrophic Lateral Sclerosis

open access: yesMuscle &Nerve, EarlyView.
ABSTRACT Emergencies are frequent in people living with amyotrophic lateral sclerosis (pALS), especially as the disease progresses, and can necessitate urgent evaluation and intervention. Progressive weakness in ALS inevitably increases fall risk, making discussion of fall prevention strategies integral to caring for pALS.
S. Pinar Uysal   +9 more
wiley   +1 more source

Respiratory Sinus Arrhythmia During Speech Production [PDF]

open access: yesJournal of Speech, Language, and Hearing Research, 2003
The amplitude of the respiratory sinus arrhythmia (RSA) was investigated during a reading aloud task to determine whether alterations in respiratory control during speech production affect the amplitude of RSA. Changes in RSA amplitude associated with speech were evaluated by comparing RSA amplitudes during reading aloud with those obtained during rest
Kevin J, Reilly, Christopher A, Moore
openaire   +2 more sources

Respiratory sinus arrhythmia: a frequency dependent phenomenon

open access: yes, 1964
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 were observed.
Alfonso Angelone, Norman A. Coulter
core   +1 more source

Perianesthetic Complications in Genetic Mitochondrial Disease: A Review of Case Reports

open access: yesPediatric Anesthesia, EarlyView.
ABSTRACT Background Genetic mitochondrial diseases (GMDs) are a large group of genetically and clinically heterogeneous disorders caused by defects in genes encoding mitochondrial components. GMDs are grouped into named syndromes based on clinical presentation, for example, Leigh syndrome (LS).
Brittany M. Johnson, Simon C. Johnson
wiley   +1 more source

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