Enhancement of cold-induced vasodilatation following acclimatization to altitude.

European Journal of Applied Physiology
Ana FelicijanIgor B Mekjavic

Abstract

The present study evaluated the effect of high-altitude acclimatisation on the cold-induced vasodilatation (CIVD) response. A group of highly trained mountaineers (N = 9; Alpinists) were tested before and after a 3 week high-altitude Himalayan expedition (altitude ranging from 3,985 to 6,828 m). A control group (N = 7) with no mountaineering experience was tested at the same time points. During each test, subjects first immersed their hand to the styloid process in 37 degrees C water for 5 min and then in 10 degrees C water for 30 min. Upon completion of the hand immersion, the same procedure was repeated for the foot. Skin temperature of the pads of all immersed digits was measured throughout the immersion and for 10 min following the immersion. In the Alpinists, a significant increase in amplitude of CIVD and absolute maximum finger skin temperature during immersion was observed in the hand post-expedition. For the foot, peak time of CIVD was significantly shorter in the Alpinist group, and there were significant increases in minimum and maximum toe skin temperature during CIVD, mean toe skin temperature during immersion, absolute minimum and maximum toe skin temperature during immersion, and absolute amplitude during immersi...Continue Reading

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Citations

Feb 6, 2010·European Journal of Applied Physiology·Michail E KeramidasIgor B Mekjavic
Feb 25, 2014·High Altitude Medicine & Biology·Shawnda A MorrisonIgor B Mekjavic
Mar 21, 2012·High Altitude Medicine & Biology·Mojca AmonIgor B Mekjavic
Aug 20, 2011·Microcirculation : the Official Journal of the Microcirculatory Society, Inc·Stephen S Cheung, Hein A M Daanen
Sep 29, 2011·Microcirculation : the Official Journal of the Microcirculatory Society, Inc·Andres E CarrilloAndreas D Flouris
Jul 22, 2014·Scandinavian Journal of Medicine & Science in Sports·M E KeramidasO Eiken
Jul 23, 2015·High Altitude Medicine & Biology·Michail E KeramidasIgor B Mekjavic
Mar 11, 2015·Wilderness & Environmental Medicine·Shawnda A MorrisonIgor B Mekjavic
Apr 7, 2011·Journal of the Royal Army Medical Corps·C H E ImrayJ W Castellani
Mar 4, 2018·European Journal of Applied Physiology·Gary J HodgesStephen S Cheung
Jan 1, 2015·Temperature : Multidisciplinary Biomedical Journal·Stephen S Cheung
May 26, 2018·European Journal of Applied Physiology·Jurij GorjancIgor B Mekjavic
Apr 3, 2018·High Altitude Medicine & Biology·Jurij GorjancIgor B Mekjavic
Jul 11, 2021·European Journal of Applied Physiology·Urša CiuhaIgor B Mekjavic

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