Results 101 to 110 of about 25,281 (243)

Vascular Dynamics During Respiratory Arousal From Sleep Assessed by Oximeter‐Based Vascular Stiffness Measures

Journal of Sleep Research, EarlyView.
ABSTRACT Cortical arousals significantly impact obstructive sleep apnoea (OSA) pathophysiology and cardiovascular consequences, often mediated by sympathetic activation. While pulse oximetry (PPG) provides an accessible reflection of autonomic responses such as changes in pulse rate (PR) and pulse wave amplitude (PWA), the dynamic influence on other ...
Christian Strassberger, Ding Zou, Jan Hedner, Ludger Grote   +3 more
wiley   +1 more source

Psychophysiological indicators of emotional arousal in sexual assault survivors: Evaluating ANS reactivity to therapeutic COPE cards within the SEE FAR CBT framework for PTSD treatment

Psychology and Psychotherapy: Theory, Research and Practice, EarlyView.
Abstract Objective SEE FAR CBT is an integrative treatment protocol for PTSD and anxiety disorders, utilizing imagery‐based (fantastic reality) methods through associative therapeutic COPE cards. Although preliminary evidence suggests potential impacts, further validation is necessary to confirm their efficacy in eliciting specific arousal‐affective ...
Sivan Raz, Noa Burchis, Mooli Lahad
wiley   +1 more source

ECG study in practical labs for biomedical engineering training [PDF]

, 2018
Non-invasive biomedical measurements are one of the most important technological contributions whitin the biomedical engineering field. On this paper, a dual laboratory session student oriented is designed to simulate and implement a cardial signal ...
Albelo Jorge, Néstor (Coordinador), Ayala Alfonso, Alejandro José (Coordinador), Estévez Damas, José Ignacio (Coordinador), González González, Carina Soledad (Coordinador), González Hernández, Oswaldo Bernabé (Coordinador), Gutiérrez Rodríguez, Virginia (Coordinador), Magdaleno Castelló, Eduardo (Coordinador), Olmo Fernández, Alberto, Peña Fabiani, María de la (Coordinador), Pérez García, Pablo, Pérez Navas, Fernando Andrés (Coordinador), Rodríguez Mendoza, Beatriz (Coordinador), Rodríguez Pérez, Silvestre (Coordinador), Rodríguez Valido, Manuel (Coordinador), Sánchez Berriel, Isabel (Coordinador), Yúfera García, Alberto   +15 more
core  

Effects of the angle of head‐down tilt on dynamic cerebral autoregulation during combined exposure to cephalad fluid shift and mild hypercapnia

Experimental Physiology, EarlyView.
Abstract Astronauts experience combined exposure to a cephalad fluid shift and mild hypercapnia during space missions, potentially contributing to health problems. Such combined exposure may weaken dynamic cerebral autoregulation. The magnitude of cephalad fluid shift varies between individuals, and dynamic cerebral autoregulation may be affected more ...
Tomokazu Kato, Yojiro Ogawa, Ken‐ichi Iwasaki   +2 more
wiley   +1 more source

Blood flow restriction: The acute effects of body tilting and reduced gravity analogues on limb occlusion pressure

Experimental Physiology, EarlyView.
Abstract Blood flow restriction (BFR) has been identified as a potential countermeasure to mitigate physiological deconditioning during spaceflight. Guidelines recommend that tourniquet pressure be prescribed relative to limb occlusion pressure (LOP); however, it is unclear whether body tilting or reduced gravity analogues influence LOP.
Patrick Swain, Nick Caplan, Luke Hughes
wiley   +1 more source

Individuals with persisting post‐concussion symptoms with physiological subtype demonstrate altered cardiovascular and autonomic responses to face cooling

Experimental Physiology, EarlyView.
Abstract Individuals with persisting post‐concussion symptoms with physiological subtype (PPCS‐P) demonstrate exercise intolerance due to exacerbation of concussion‐like symptoms during incremental exercise. We tested the hypothesis that individuals with PPCS‐P (n = 12) would have a blunted cardiac autonomic response to face cooling compared to healthy
Phillip J. Wallace, Steve Lidstone, Josh G. Nowlan, Johnathan Ljubanovich, Brandon J. McKinlay, Stephen A. Klassen, Stephen S. Cheung   +6 more
wiley   +1 more source

Optimizing cerebrovascular endothelial health through shear stress modulation

Experimental Physiology, EarlyView.
Abstract The endothelium plays a pivotal role in regulating cerebrovascular blood flow, and its dysfunction increases the risk of cerebrovascular disease. Endothelial shear stress, a primary mechanical stimulus for endothelial nitric oxide production, is a key modulator of vascular adaptation.
Erika Iwamoto, Rintaro Sakamoto, Darren P. Casey   +2 more
wiley   +1 more source

Piloting Photoplethysmographic Smartphone- Based Atrial Fibrillation Screening in Austria

Current Directions in Biomedical Engineering
Atrial fibrillation (AF), the most common sustained arrhythmia, affects over 59 million people worldwide and carries a high risk of serious complications such as stroke.
Hayn Dieter, Baumgartner Martin, Hofhansel Lena, Aumayer Helen, Woodford Melanie, Müllner-Rieder Markus, Edegger Kurt, Schreinlechner Michael, Pavluk Daniel, Scherr Daniel, Manninger-Wünscher Martin, Reinstadler Sebastian, Bauer Axel, Schreier Günter   +13 more
doaj   +1 more source

Functional state of terminal muscular arteries and distributing arterioles in men with different levels of psychosocial stress

Рациональная фармакотерапия в кардиологии
Aim. To study the functional state of terminal muscular arteries and distributing arterioles using transmission photoplethysmography (PPG) in men of working age with different levels of psychosocial stress (PS).Material and methods.
O. Yu. Isaykina, A. I. Korolev, M. B. Kotova, M. G. Chashchin, P. A. Chernousov, S. A. Maksimov, A. A. Fedorovich, A. Yu. Gorshkov, V. M. Gorbunov   +8 more
doaj   +1 more source

Time‐course analysis of cerebral circulation and cardiorespiratory responses to acute central blood volume reduction in healthy young males

Experimental Physiology, EarlyView.
Abstract Central blood volume (CBV) reduction challenges circulatory and respiratory homeostasis, particularly during the initial compensatory phase (0–2 min), when rapid physiological adaptations occur. In this study, we examined dynamic cardiorespiratory responses to CBV reduction using lower‐body negative pressure (LBNP) in 11 healthy young males ...
Marina Feeley, Tomoki Watada, Go Ito, Ai Shimada, Toru Sawai, Hideomi Nakata, Shingo Otsuki, Tadayoshi Miyamoto   +7 more
wiley   +1 more source