Results 131 to 140 of about 32,664 (289)

Hyperventilation Disorders [PDF]

open access: yesJournal of the Royal Society of Medicine, 1990
openaire   +2 more sources

Hyperventilation and submarine escape [PDF]

open access: yes, 1991
The Royal Navy have demonstrated in two sea trials that it is possible for men to make successful escapes from submarines at depths of about 600 ft. However, the outcomes suggest this depth is close to the limit of safe escape under ideal conditions and ...
Deam, Roberta Kay
core  

Cerebrovascular regulation during heat stress

open access: yesExperimental Physiology, EarlyView.
Abstract Given that the brain is a highly metabolic organ and is enclosed by the skull, effective regulation of cerebral blood flow (CBF), not only for oxygen and nutrients supply but also as a means of convective heat exchange, is critical for preventing excessive elevations in brain temperature.
Kanoko Ito, Manabu Shibasaki
wiley   +1 more source

Brain strain: Blood flow and metabolism in environmental extremes

open access: yesExperimental Physiology, EarlyView.
Abstract This narrative review compares and contrasts the most commonly encountered environmental stressors on human cerebrovascular functioning. From high altitude and space, extreme apnoea, heat and cold stress, the impact of these stressors on the regulation of cerebral blood flow (CBF) and oxygen metabolism (CMRO2${\mathrm{CM}}{{\mathrm{R}}_ ...
Dario Vrdoljak   +3 more
wiley   +1 more source

Identification of the individual cardiac contraction threshold during high‐frame‐rate stress echocardiography

open access: yesExperimental 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

Stroke neurovascular responses to exercise: A novel rehabilitation paradigm

open access: yesExperimental 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   +2 more
wiley   +1 more source

HYPERVENTILATION

open access: yesBritish Journal of Anaesthesia, 1969
openaire   +2 more sources

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

open access: yesExperimental 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   +11 more
wiley   +1 more source

Galectin‐3 plasma levels are associated with left atrial contractile function in long‐distance runners

open access: yesExperimental Physiology, EarlyView.
Abstract High‐intensity endurance exercise induces myocardial remodelling as an adaptive response to sustained volume overload, but excessive cumulative training might also favour deleterious cardiac remodelling, including atrial fibrosis. Whether acute marathon running engages circulating fibrosis‐related biomarkers and whether these biomarkers track ...
Felipe Contreras‐Briceño   +6 more
wiley   +1 more source

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