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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12184329 | PMC |
| http://dx.doi.org/10.1073/pnas.2502740122 | DOI Listing |
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Preacclimatization and base excess rather than deficit?
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Carry-Over Quality of Pre-acclimatization to Altitude Elicited by Intermittent Hypoxia: A Participant-Blinded, Randomized Controlled Trial on Antedated Acclimatization to Altitude.
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Department of Sport Science, Medical Section, University Innsbruck, Innsbruck, Austria.
Intermittent normobaric hypoxia (IH) is increasingly used to pre-acclimatize for a sojourn to high altitude. There is a number of hypoxia - protocols observing the hypoxic ventilatory response (HVR), but little is known about the carry - over quality of the Lake Louise Score (LLS). We thus studied a week - long, 1 h per day poikilocapnic hypoxia protocol on whether acclimatization could be carried over for one week.
View Article and Find Full Text PDFEffects of daily ingestion of sodium bicarbonate on acid-base status and anaerobic performance during an altitude sojourn at high altitude: a randomized controlled trial.
J Int Soc Sports Nutr
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Department of Sports Medicine and Sports Nutrition, Ruhr-Universität Bochum, Gesundheitscampus Nord 10, 44801, Bochum, Germany.
Background: The present study investigated the effects of chronic sodium bicarbonate (NaHCO) ingestion on a single bout of high-intensity exercise and on acid-base balance during 7-day high-altitude exposure.
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Preacclimatization in hypoxic chambers for high altitude sojourns.
Sleep Breath
September 2010
Institute for Occupational and Social Medicine, RWTH Aachen University, Aachen, Germany.
Introduction: Since hypoxic chambers are more and more available, they are used for preacclimatization to prepare for sojourns at high altitude. Since there are different protocols and the data differ, there is no general consensus about the standard how to perform preacclimatization by simulated altitude. The paper reviews the different types of exposure and focuses on the target groups which may benefit from preacclimatization.
View Article and Find Full Text PDFUse of a hypobaric chamber for pre-acclimatization before climbing Mount Everest.
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Association pour la Recherche en Physiologie de l'Environnement, U. F. R. Médecine, Bobigny, France.
Climbing Mount Everest needs an acclimatization period of 3 to 4 weeks between 3000 and 6000 m. In order to reduce this period of time spent in dangerous conditions, an experience of pre-acclimatization was performed with 5 elite alpinists (4 male, 1 female), aged 30 +/- 4 yrs (mean +/- SD), before their attempt to climb Mount Everest. Subjects first remained one week on Mont-Blanc (between 4350 and 4807 m), then spent a total of 38 hours in a hypobaric chamber (in 4 consecutive days) from 5000 to 8500 m standard altitude.
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