Results 151 to 160 of about 75,755 (305)

A controlled study using routine intermittent positive pressure breathing in the post-surgical patient.

open access: yesDiseases of the Chest, 1961
J. H. Sands   +6 more
semanticscholar   +1 more source

Sex differences in the prefrontal cortex and muscle oxygenation during exercise until exhaustion in endurance‐trained individuals

open access: yesExperimental Physiology, EarlyView.
Abstract figure legend During cardiopulmonary exercise testing, the decline in oxygenation in the prefrontal cortex of women is striking. This crucial brain area is directly involved in planning motor tasks. The decline is particularly pronounced at higher exercise intensities, especially after reaching the respiratory compensation point or anaerobic ...
Daniel Ramos‐López   +12 more
wiley   +1 more source

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

open access: yesExperimental 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

Astrocytes at the crossroads of obstructive sleep apnea and Alzheimer's disease: from oxygen sensing to neurodegeneration. [PDF]

open access: yesSleep Breath
Cabot J   +7 more
europepmc   +1 more source

Acute intermittent hypercapnic hypoxia augments left ventricular contractility

open access: yesThe 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

Central venous pressure elevations are associated with intracranial pressure spikes in a model of acute obstructive sleep apnea. [PDF]

open access: yesJ Cereb Blood Flow Metab
Riedel CS   +7 more
europepmc   +1 more source

Neuromuscular fatigability with repeated exercise in hypoxia: From single‐joint paradigms to sprints

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Acute hypobaric or normobaric hypoxic exposure accelerates neuromuscular fatigability during repeated exercise. Indices of peripheral and central fatigue are not different at exhaustion in mild, moderate and severe hypoxia compared with normoxia, but task failure occurs earlier.
Luca Ruggiero   +5 more
wiley   +1 more source

Reduced cardiovascular mortality at moderate altitude: a putative role of physical activity and body mass

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Benefits of performing physical exercise at moderate altitude. At moderate altitude, increased resting metabolic rate and physical exertion promote physical fitness and exercise tolerance, whereas hypoxia suppresses appetite and elicits adaptations that increase tissue O2 delivery while augmenting O2‐independent ATP production ...
Robert T. Mallet   +6 more
wiley   +1 more source

Postoperative intermittent positive-pressure breathing treatments

open access: yesThe Journal of Thoracic and Cardiovascular Surgery, 1974
Douglas H. McConnell   +2 more
openaire   +1 more source

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