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Variation in human performance in the hypoxic mountain environment

Martin, Daniel S., Levett, Denny Z.H., Grocott, Mike P.W. and Montgomery, Hugh E. (2010) Variation in human performance in the hypoxic mountain environment Experimental Physiology, 95, (3), pp. 463-470. (doi:10.1113/expphysiol.2009.047589). (PMID:19946029).

Record type: Article

Abstract

Ascent to altitude is associated with a fall in barometric pressure, and with it a decline in the partial pressure of atmospheric (and thus alveolar) oxygen. As a result, a variety of adaptive physiological processes are engaged to mitigate the fall in tissue convective oxygen delivery which might otherwise occur. The magnitude and nature of such changes is also modified with time, a process known as acclimatization. However, other phenomena are at work; the ability to perform physical work at altitude falls in a manner which is not wholly related to changes in arterial oxygen content. Indeed, alterations in local skeletal muscle blood flow and metabolism may play an axial role. Thus, for those who are not native to high altitude, the ability to compete at altitude is likely to be impaired. The magnitude of such impairment in performance, however, differs greatly between individuals, and it seems that genetic variation underpins much of this difference. The identification of the relevant genetic elements is in its infancy in humans, but ongoing work is likely to help us gain an increasing understanding of how humans adapt to altitude and to develop mitigating interventions.

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More information

Published date: March 2010
Organisations: Human Development & Health

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Local EPrints ID: 348915
URI: http://eprints.soton.ac.uk/id/eprint/348915
ISSN: 0958-0670
PURE UUID: 9ada21cb-ccee-4fd9-ba2c-00c744c81f39

Catalogue record

Date deposited: 22 Feb 2013 14:10
Last modified: 18 Jul 2017 04:46

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Contributors

Author: Daniel S. Martin
Author: Denny Z.H. Levett
Author: Hugh E. Montgomery

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