Results 131 to 140 of about 6,013,910 (239)

End-tidal carbon dioxide tension is a reliable surrogate of arterial carbon dioxide tension across different oxygen, carbon dioxide and barometric pressures

ERJ Open Research, 2023
Giorgio Manferdelli, Benjamin J. Narang, Nicolas Bourdillon, Tadej Debevec, Grégoire P. Millet   +4 more
doaj   +1 more source

Effect of repeated hot water immersion on cognitive performance, cerebrovascular function, sleep and biomarkers of neurodegeneration in older adults

Experimental Physiology, EarlyView.
Abstract Ageing is associated with cognitive decline and increased risk of developing neurodegenerative disease. Repeated passive heating, using hot water immersion (HWI), may improve cognitive performance via improved cerebral oxygenation, but this is yet to be examined in older adults.
Daniel D. Piccolo, Jo Corbett, Joseph T. Costello, Thomas B. Williams, Thomas J. James, Janis K. Shute, Mohammad G. A. Alnajjar, Luke C. Hudson, Poppy A. Marsh, Veronika Praskacova, Harry S. Mayes, Michael Tipton, Maria Perissiou, Melitta A. McNarry, Kelly A. Mackintosh, Zoe L. Saynor, Anthony I. Shepherd   +16 more
wiley   +1 more source

Brain tissue pulsation responses to a low‐level expiratory resistance manoeuvre: A pilot healthy volunteer study

Experimental Physiology, EarlyView.
Abstract Pulsatility of the brain has been hypothesised to be linked to intracranial pressure (ICP), although the nature of this relationship remains poorly understood. We used a low‐level expiratory resistance manoeuvre to characterise brain tissue pulsation (BTP) responses in a pilot healthy volunteer study.
Jennifer K. Nicholls, Emma M. L. Chung, Jonathan Ince, Edward Pallett, Jatinder S. Minhas, Andrea Lecchini‐Visintini   +5 more
wiley   +1 more source

Stroke neurovascular responses to exercise: A novel rehabilitation paradigm

Experimental Physiology, EarlyView.
Abstract Stroke is a leading cause of long‐term disability, impacting the cerebrovascular, peripheral vascular and neuromotor systems. Characterising vascular responses to exercise post‐stroke offers valuable insights into the impairments that might influence outcomes during neurorehabilitation.
Alicen A. Whitaker‐Hilbig, Allison S. Hyngstrom, Matthew J. Durand   +2 more
wiley   +1 more source

Cerebral and peripheral haemodynamics at rest and in response to orthostasis during 3 days of simulated heatwave

Experimental Physiology, EarlyView.
Abstract Acute heat stress reduces cerebral haemodynamics and orthostatic tolerance. However, the haemodynamic response to orthostasis during prolonged heat stress typical of heatwaves is unknown. We hypothesised that thermoregulatory‐induced elevations in peripheral haemodynamics during 3 days of simulated heatwave would exacerbate orthostatic‐induced
Alexander T. Friend, Samuel J. Oliver, Lydia L. Simpson, Carmen Possnig, Gabriella M. K. Rossetti, Jason T. Fisher, Lydia Tsoutsoubi, Konstantinos Mantzios, Urša Ciuha, Leonidas G. Ioannou, Igor B. Mekjavic, Justin S. Lawley   +11 more
wiley   +1 more source

Pulmonary arterial mechanoreceptors mediate sustained sympathoexcitation during high altitude hypoxia in humans

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, Lydia L. Simpson, Jack S. Talbot, Elliott J. Jenkins, Travis D. Gibbons, Connor A. Howe, Lauren E. Maier, Emily R. Vanden Berg, Alex M. Williams, Philip N. Ainslie, Samuel J. Oliver, Craig D. Steinback, Mike Stembridge, Jonathan P. Moore   +13 more
wiley   +1 more source

Low end-tidal carbon dioxide identifies high-severity pulmonary embolism and shock-level haemodynamics. [PDF]

ERJ Open Res
Greenspon LW, Ho P, George J, Whealon S, Gianniosis M, Develin B, Fischer J, Kjelstrom S, Caroline M, Gnall E.   +9 more
europepmc   +1 more source

Pressure‐dependent coupling between arterial pressure and intercostal muscle blood‐flow index during acute hypotension in humans

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, Mikie Nakabayashi, Yumie Ono   +2 more
wiley   +1 more source

A Retrospective Comparison of Transcutaneous and End-Tidal Carbon Dioxide Monitoring in Pediatric Polysomnography. [PDF]

Cureus
Tsui TK.
europepmc   +1 more source

Intermittent hypoxia interventions for inducing ventilatory acclimatization to high altitude?

Experimental Physiology, EarlyView.
Abstract Accumulation of ∼200 h of hypoxia exposure (pre‐acclimatization) has been suggested to prevent the development of acute mountain sickness when a person is subsequently exposed to high altitude. These pre‐exposures are typically undertaken intermittently at or near the place of residence, primarily during sleep in hypoxic tents, and are likely ...
Martin Burtscher, Axel Kleinsasser, Johannes Burtscher, Katharina Hüfner, Erik R. Swenson, Peter Hackett, Hannes Gatterer   +6 more
wiley   +1 more source