Results 151 to 160 of about 2,041,725 (223)

Acute mountain sickness [PDF]

Archives of Physiotherapy and Global Researches, 2014
Borowska, Emilia, Harasim-Piszczatowska, Emilia, Van Damme-Ostapowicz, Katarzyna   +2 more
openaire   +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

Prediction of acute mountain sickness occurring at 4554 m using overnight pulse oximetry from lower altitude: A pilot study

Experimental Physiology, EarlyView.
Abstract Acute mountain sickness (AMS) affects many individuals ascending to high altitude annually, carrying potential morbidity and mortality risks (e.g., high‐altitude cerebral oedema). The objective of this pilot study was to record overnight pulse oximetry during ascent to 4554 m and determine whether: (1) extracted overnight biomarkers had any ...
Luke Cutts, Kim Ashdown, Ciaran Simpkins, Will Trender, Sarah Clarke, John Delamere, Samuel J. E. Lucas, Kelsey Elizabeth Joyce   +7 more
wiley   +1 more source

Exercise and physiological monitoring in isolated, confined and extreme environments and space analogues: A scoping review

Experimental Physiology, EarlyView.
Abstract This scoping review synthesized evidence on physical activity/exercise and physiological monitoring in isolated, confined and extreme (ICE) environments, with emphasis on Antarctic missions and space analogues. ICE exposures combine cold stress, confinement, disrupted light–dark cycles and psychosocial strain, which can challenge ...
Gustavo S. O. Lima, Kaline V. F. Dinis, Leonardo P. Silva, Nayanne B. Sousa, Maria Keiliane F. S. Silva, Danilo C. Talhari, Josélia S. Almeida, Michele M. Moraes, Rosa M. E. Arantes, Marcos A. Nascimento, Thiago T. Mendes   +10 more
wiley   +1 more source

Impact of living and training at low altitude for several years on endurance performance at higher altitude: Myth or reality

Experimental Physiology, EarlyView.
Abstract The physiological adaptations of long‐term high‐altitude residents without high‐altitude genetic ancestry remain poorly characterized. This study investigated whether permanent residence at low altitude (1200 m) influences performance at higher altitude (2500 m). We compared exercise responses at 2500 m in endurance‐trained athletes living for
Fabienne Durand, Sergi Brau Villaro, Antoine Raberin   +2 more
wiley   +1 more source

The contributions of nocturnal hypoxaemia and sleep disturbances to acute mountain sickness

Experimental Physiology, EarlyView.
Abstract Acute mountain sickness (AMS) is common after ascent to altitude, yet individual susceptibility remains difficult to predict and diagnosis relies on subjective report. Sleep disturbances and nocturnal hypoxaemia at altitude may provide insight, but their relationship to AMS is incompletely understood.
D. M. Williamson, M. K. Gudelunas, J. W. Sall   +2 more
wiley   +1 more source

Cooling down for going up: Could selective ‘brain chilling’ mitigate high‐altitude illness?

Experimental Physiology, EarlyView.
Adnan Haq, Damian M. Bailey
wiley   +1 more source

Pulmonary arterial mechanoreceptors modulate exercise‐induced sympathetic activation in healthy humans during moderate‐intensity hypoxic exercise

The Journal of Physiology, EarlyView.
Abstract figure legend This randomized cross‐over trial (N = 12) addressed the hypothesis that selective reduction of pulmonary arterial pressure (i.e. manipulation of pulmonary arterial mechanoreceptor activation) during hypoxic exercise would reduce sympathetic outflow (muscle sympathetic nerve activity (MSNA)) in healthy humans.
Michiel T. Ewalts, Thomas D. Griffiths, Andrew J. M. Douglas, Elliott J. Jenkins, Guto Wyn Hughes, Craig D. Steinback, Lydia L. Simpson, Samuel J. Oliver, Mike Stembridge, Jonathan P. Moore   +9 more
wiley   +1 more source

Effects of nocturnal periodic breathing on sympathetic nerve activity and ventilatory control at high altitude: a randomised, crossover study

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic overview of the randomised crossover study investigating the effects of nocturnal periodic breathing (nPB) on sympathetic activity and ventilatory acclimatisation in hypobaric hypoxia equivalent to 4000 m altitude. Participants completed two 3‐day sojourns where nPB was inhibited by increasing inspiratory CO2 fraction ...
Johanna Roche, James P. Fisher, Peter Rasmussen, Abubaker Ibrahim, Philip N. Ainslie, Rachel Turner, Giovanni Vinetti, Matteo Cesari, Michael Furian, Ambra Stefani, Nikolaus Netzer, Hannes Gatterer, Birgit Högl, Christoph Siebenmann   +13 more
wiley   +1 more source

Ventilatory and cerebrovascular responses to exercise in lowlander children acclimatizing to high‐altitude

The Journal of Physiology, EarlyView.
Abstract figure legend To investigate age‐related differences in ventilatory and cerebrovascular responses to exercise at high‐altitude, adults (n = 10, 23–44 years) and children (n = 8, 7–14 years) completed progressive cycling exercise tests at sea‐level and following 6 days of acclimatization at 3800 m.
J. L. Koep, M. G. Rieger, K. J. Smith, G. R. DuManoir, C. M. Tallon, D. R. Perkins, S. Piombo, M. Stembridge, D. M. Cooper, S. Radom‐Aizik, P. N. Ainslie, A. M. McManus   +11 more
wiley   +1 more source