Slovakia's ski centres are looking spruced up, but snow-sports are merely the gateway to a host of high-altitude activities in this mountainous land, such as tracking some of Europe's last major wolf populations.
The other application where a wearable SpO2 system in reflective mode is desired is for people performing high-altitude activities e.g. mountaineering or climbing.
The medical examination was to have been performed 1 week before exposure in our original protocol, but the high altitude exposure activity was delayed for 3 weeks due to a typhoon.
However, in the field of wilderness and mountain medicine, there has been active research and practice related to high altitude and mountain climbing activities.
For mammals, most of the studies investigating oxidative enzyme activities during high altitude stage or decompression revealed reductions in enzymes activities as well as mitochondrial density (Abdelmalki et al., 1996; Green, 1992; Hoppeler et al., 1990; Howald et al., 1990).
Under extreme stress (high altitude and extreme physical activity), people with sickle cell trait, actually can develop what's called a sickle cell crisis (the same thing that happens to people with sickle cell disease under normal conditions), because some of their red blood cells are affected by the small amounts of defective hemoglobin.
We investigated the effect of high altitude on the match activity profile of elite youth high altitude and sea level residents.
This is the first study to document the effects of high altitude on the match activity profile of sea level-resident and altitude-resident team-sport athletes.
The aims of this study therefore were to (1) determine the effects of high altitude on the match activity profile of sea level and high-altitude natives and (2) establish the time course of match running performance acclimatisation to high altitude so as to improve our understanding of the optimal timing of arrival before official competition.
Another mode of intermittent hypoxia has arisen as a result of the recent settlements of mines and other activities at high altitude (chronic intermittent hypoxia, CIH), where subjects repeatedly ascend from sea level to 3800 4200 m and work in shifts, being exposed to hypoxia for longer periods than in OSA conditions [ 3].
Because the Mount Cayley volcanic field has a high elevation and consists of a cluster of mostly high altitude, non-overlapping volcanoes, subglacial activity is likely to have occurred under less than 800 m of glacial ice.
