Results 101 to 110 of about 7,515 (209)
Experimental Physiology, EarlyView.Abstract Passive hyperthermia increases net peripheral and systemic blood flow in humans and other animals, yet the underlying haemodynamic forces that selectively accelerate blood movement remain incompletely characterized. Wave intensity analysis offers insight into the respective contributions of the heart and the vascular system to changes in blood
Nuno Koch Esteves +4 more
wiley +1 more source
Experimental Physiology, EarlyView.Abstract The clinical assessment of cardiovascular function during exercise using stress echocardiography is essential for accurate cardiac diagnosis. However, normal limitations of cardiac deformation responses to increasing physical exertion remain poorly understood.
Fabian Spahiu +4 more
wiley +1 more source
Experimental Physiology, EarlyView.Abstract Sympathetic nervous system activation is a hallmark of high‐altitude hypoxia, yet the afferent mechanisms remain incompletely defined. We examined the relative contributions of pulmonary arterial mechanoreceptors and carotid chemoreceptors – two excitatory pathways co‐activated by hypoxia – to sustained sympathoexcitation at altitude.
Michiel T. Ewalts +13 more
wiley +1 more source
Nose Heat: Exploring Stress-induced Nasal Thermal Variability through Mobile Thermal Imaging
, 2019 Automatically monitoring and quantifying stress-induced thermal dynamic information in real-world settings is an extremely important but challenging problem.
Bianchi-Berthouze, Nadia +4 more
core +1 more source
Experimental Physiology, EarlyView.Abstract Regulation of respiratory muscle blood flow during acute systemic hypotension remains poorly understood in humans because continuous assessment of microvascular perfusion during rapid haemodynamic transients has been technically challenging. Using diffuse correlation spectroscopy, we investigated second‐by‐second coupling between mean arterial
Masashi Ichinose +2 more
wiley +1 more source
A Novel Real-Time Non-invasive Hemoglobin Level Detection Using Video Images from Smartphone Camera [PDF]
, 2017 Hemoglobin level detection is necessary for evaluating health condition in the human. In the laboratory setting, it is detected by shining light through a small volume of blood and using a colorimetric electronic particle counting algorithm.
Adibuzzaman, Mohammad +6 more
core +1 more source
Advances in cardiac devices and bioelectronics augmented with artificial intelligence
The Journal of Physiology, EarlyView.Abstract figure legend Interfaces between the human heart, diagnostic bioelectronics, artificial intelligence, and clinical care. From left to right: Human heart and biosensor interface; representative waveforms of common diagnostic bioelectronic sensing modalities.
Charles Stark +3 more
wiley +1 more source
Applied SciencesReliable analysis of remote photoplethysmography (rPPG) signals depends on identifying physiologically plausible pulses. Traditional approaches rely on clustering self-similar pulses, which can discard valid variability.
Lieke Dorine van Putten +2 more
doaj +1 more source
Acute intermittent hypercapnic hypoxia augments left ventricular contractility
The Journal of Physiology, EarlyView.Abstract figure legend Twenty‐four healthy adults were studied to determine the effects of an acute session of 40 min of intermittent hypercapnic hypoxia on cardiac performance. Cardiac function was assessed via echocardiography at rest and during graded stages of lower‐body negative pressure before and after the intervention to quantify load ...
Scott F. Thrall +8 more
wiley +1 more source
Burn wound classification model using spatial frequency-domain imaging and machine learning. [PDF]
, 2019 Accurate assessment of burn severity is critical for wound care and the course of treatment. Delays in classification translate to delays in burn management, increasing the risk of scarring and infection.
Baldado, Melissa +7 more
core +1 more source