Results 21 to 30 of about 2,849,596 (321)

Effect of exercise on cerebral perfusion in humans at high altitude

open access: yesJournal of Applied Physiology, 2005
The effects of submaximal and maximal exercise on cerebral perfusion were assessed using a portable, recumbent cycle ergometer in nine unacclimatized subjects ascending to 5,260 m. At 150 m, mean (SD) cerebral oxygenation (rSo2%) increased during submaximal exercise from 68.4 (SD 2.1) to 70.9 (SD 3.8) ( P < 0.0001) and at maximal oxygen uptake (V ...
Imray, C   +7 more
openaire   +4 more sources

Nutritional Aspects of High Altitude and Snow Bound Areas [PDF]

open access: yes, 2014
The precise nutritional requirement of humans at high altitude area is not well defined. Further there are many conflicting reports on the effects of hypoxia on digestion, absorption and utilization of food at high altitude.
Rai, R. M., Sridharan, K.
core   +2 more sources

A Spatial Agent-Based Model to Assess the Spread of Malaria in Relation to Anti-Malaria Interventions in Southeast Iran

open access: yesISPRS International Journal of Geo-Information, 2020
Malaria threatens the lives of many people throughout the world. To counteract its spread, knowledge of the prevalence of malaria and the effectiveness of intervention strategies is of great importance.
Navid Mahdizadeh Gharakhanlou   +2 more
doaj   +1 more source

Effect of clouds on emission spectra for Super Venus [PDF]

open access: yes, 2021
We report a model study on the effects of clouds on emission spectra of super-Venus planets. Our goal is to assess possible ways to identify characteristic spectral features due to clouds. We show that it is possible to distinguish an impact of H2SO4 clouds on the CO2 absorption band at 4.8 micron for temperature profiles with and without a thermal ...
arxiv   +1 more source

Effect of high altitude on human postprandial 13C‐octanoate metabolism, intermediary metabolites, gastrointestinal peptides, and visceral perception [PDF]

open access: yesNeurogastroenterology & Motility, 2021
AbstractObjectiveAt high altitude (HA), acute mountain sickness (AMS) is accompanied by neurologic and upper gastrointestinal symptoms (UGS). The primary aim of this study was to test the hypothesis that delayed gastric emptying (GE), assessed by 13C‐octanoate breath testing (OBT), causes UGS in AMS.
Strunz, Patrick-Pascal   +8 more
openaire   +3 more sources

Salmeterol for the prevention of high-altitude pulmonary edema. [PDF]

open access: yes, 2002
BACKGROUND: Pulmonary edema results from a persistent imbalance between forces that drive water into the air space and the physiologic mechanisms that remove it.
Allemann, Y.   +11 more
core   +1 more source

Ibuprofen Blunts Ventilatory Acclimatization to Sustained Hypoxia in Humans. [PDF]

open access: yes, 2016
Ventilatory acclimatization to hypoxia is a time-dependent increase in ventilation and the hypoxic ventilatory response (HVR) that involves neural plasticity in both carotid body chemoreceptors and brainstem respiratory centers.
Antonova, Julie   +7 more
core   +2 more sources

Adrenal, thyroid and gonadal axes are affected at high altitude

open access: yesEndocrine Connections, 2018
Humans cannot live at very high altitude for reasons, which are not completely understood. Since these reasons are not restricted to cardiorespiratory changes alone, changes in the endocrine system might also be involved.
M von Wolff   +7 more
doaj   +1 more source

Phosphodiesterase Type 5 Inhibitors, Sport and Doping [PDF]

open access: yes, 2017
Phosphodiesterase type 5 inhibitors (PDE5i) (e.g., sildenafil, tadalafil, vardenafil, and avanafil) are drugs commonly used to treat erectile dysfunction, pulmonary arterial hypertension, and benign prostatic hyperplasia.
Borrione, Paolo   +8 more
core   +1 more source

Physiological Responses to Hypoxia on Triglyceride Levels

open access: yesFrontiers in Physiology, 2021
Hypoxia is a condition during which the body or specific tissues are deprived of oxygen. This phenomenon can occur in response to exposure to hypoxic environmental conditions such as high-altitude, or because of pathophysiological conditions such as ...
Renée Morin   +4 more
doaj   +1 more source

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