Sea-level (SL) natives acclimatizing to high altitude (HA) increase their acute ventilatory response to hypoxia (AHVR), but HA natives have values for AHVR below those for SL natives at SL (blunting). HA natives who live at SL retain some blunting of AHVR and have more marked blunting to sustained (20-min) hypoxia. This study addressed the question of what happens when HA natives resident at SL...

hypoxia and hypocapnia can cause broncho-constriction in human subjects, and this could have a bearing on performance at high altitude. the object of this study was to examine how pulmonary ventilatory functions during high-altitude trekking. this study is a cohort study on spirometric parameters at different altitudes. fifty six healthy male volunteers from a university student population were...

In this paper, we summarize studies that used ANAM tests to assess the effects of environmental stressors. The findings document performance changes resulting from conditions relevant to military operational medicine. These conditions included radiation exposure, toxins, high altitude, undersea conditions, Marine basic training, advanced military training, and fatigue. The results of these stud...

Archival collections are important in preserving our historical heritage. An example of a new archival collection in high-altitude physiology and medicine is described. Physiologists should be more aware of the historical value of primary material and should be encouraged to offer their papers to an appropriate archival repository.

In the mountain climbing community, conventional prevention of altitude mountain sickness (AMS) relies primarily on a formal acclimatization period. AMS symptoms during mountaineering climbs are managed with medication, oxygen and minor recompression (1524-2438 m altitude) using a portable chamber, such as the Gamow Bag. This is not always an acceptable therapy alternative in a predominantly el...

introduction: extreme altitude travel has gained popularity globally for adventurous, scientific, and military endeavors. cerebral venous sinus thrombosis (cvst) at extreme altitude is a rare, covert, and emergent condition requiring immediate intervention. case presentation: a case of cvst masqueraded as high altitude cerebral edema (hace) at 6700 m/22000 ft in karakoram himalayas. atypical ol...

Article Common laboratory tests as indicators of COVID-19 severity on admission at high altitude: a single-center retrospective study in Quito (ECUADOR) was published July 1, 2021 the journal Clinical Chemistry and Laboratory Medicine (CCLM) (volume 59, issue 8).