Physiological adaptation to high altitude sojourning in backpackers

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Publication Type thesis
School or College College of Nursing
Department Nursing
Author Lepley, Ronald Herbert
Title Physiological adaptation to high altitude sojourning in backpackers
Date 1980-12
Description Seven volunteers from Salt Lake City (altitude 4,260 ft.) back-packed over a period of six days in Wyoming's Wind River Mountain Range between altitudes of 9,280 ft and 12,400 ft. Consecutive 24 hour urine aliquots were collected throughout the sojourn in addition to a 24 hour urine specimen previously collected in Salt Lake City. Urinary sodium (Na+), potassium (K+), and aldosterone levels were determined by laboratory assay after completion of the sojourn. Using 2-tailed paired T-tests, urinary sodium (Na+) and potassium (K+) levels did not change significantly during the sojourn. The sodium/ potassium ratio (Na+/K+) increased significantly on the fourth, fifth and sixth days (p ? 0.01, 0.01, 0.02, respectively). ' Aldosterone levels decreased significantly on day two (p 0.01) and on day five (p ? 0.02). Using the Pearson-R correlation coefficient, sodium was found to correlate directly to aldosterone throughout the sojourn with a coefficient value of 1.0. Normally exercise increases aldosterone production, however, in this study, the decrease in aldosterone may be explained by the inhibitory effect of hypoxia possibly overriding the effects of exercise. The correlation between aldosterone and sodium may be representative of aldosterone's control of sodium balance.
Type Text
Publisher University of Utah
Subject Backpacking; Salt Lake City
Subject MESH Altitude; Anoxia; Mountaineering
Dissertation Institution University of Utah
Dissertation Name MS
Language eng
Relation is Version of Digital reproduction of "Physiological adaptation to high altitude sojourning in backpackers." Spencer S. Eccles Health Sciences Library. Print version of "Physiological adaptation to high altitude sojourning in backpackers." available at J. Willard Marriott Library Special Collection. QP 6.5 1980 L46.
Rights Management © Ronald Herbert Lepley.
Format Medium application/pdf
Format Extent 955,831 bytes
Identifier undthes,4834
Source Original: University of Utah Spencer S. Eccles Health Sciences Library (no longer available).
Master File Extent 955,864 bytes
ARK ark:/87278/s67d2ww0
Setname ir_etd
Date Created 2012-04-24
Date Modified 2012-04-24
ID 190666
Reference URL
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