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Effects of Food or Sleep Deprivation During Civilian Survival Training on Clinical Chemistry Variables
Stockholm University, Faculty of Humanities, Department of Archaeology and Classical Studies, Archaeological Research Laboratory.
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2013 (English)In: Wilderness & environmental medicine (Print), ISSN 1080-6032, E-ISSN 1545-1534, Vol. 24, no 2, 146-152 p.Article in journal (Refereed) Published
Abstract [en]

Objective.-To describe clinical chemistry and weight changes after short-term food or sleep deprivation or multiple deprivations during civilian survival training. Methods.-Data from one baseline-controlled two-period crossover study designed to compare sleep deprivation for up to 50 hours with food deprivation for up to 66 hours (n = 12) and data from regular multiple-deprivations survival training comparing participants (n =-33) with nondeprived instructors (n = 10). Results.-Food deprivation was associated with decreased body weight, blood glucose, serum triglycerides, sodium, chloride, and urine pH, and there were increases in blood and urine ketones and. serum free fatty acids. Sleep deprivation was associated with a minor decrease in hemoglobin and erythrocyte particle count and volume fraction and an increase in leukocytes. Conclusions.-The clinical chemistry and body weight changes associated with food deprivation were qualitatively similar to those observed in fasting obese patients but developed quicker in the survival training setting. Sleep deprivation had few effects on the clinical chemistry profile except for hematological variables. Physicians evaluating clinical chemistry data from patients subjected to short-term food or sleep deprivation should take the physiological state into account in their assessment.

Place, publisher, year, edition, pages
2013. Vol. 24, no 2, 146-152 p.
Keyword [en]
survival training, starvation, sleep deprivation, metabolism, ketones
National Category
Health Sciences
Identifiers
URN: urn:nbn:se:su:diva-92516ISI: 000320290400010OAI: oai:DiVA.org:su-92516DiVA: diva2:639741
Note

AuthorCount:7;

Available from: 2013-08-09 Created: 2013-08-07 Last updated: 2017-12-06Bibliographically approved

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