Energy expenditure variations in soldiers performing military activities under cold and hot climate conditions

Major Ruth Burstein, Andy W. Coward, Wane E. Askew, Keren Carmel, Charles Irving, Ofer Shpilberg, Major Daniel Moran, Alon Pikarsky, Gad Ginot, Melcolm Sawyer, Rachel Golan, L. Colonel Yoram Epstein

Research output: Contribution to journalArticlepeer-review

27 Scopus citations

Abstract

This study assessed the energetic status of soldiers exposed to intense physical activities in cold and warm weather. Thirty subjects participated in a two-phase study: group A (n = 18) in the winter phase and group B (n = 12) in the summer phase. Energy expenditure (EE) was measured by the doubly labeled water technique; after a single, oral dosing of 2H218O, daily urine samples were collected for 12 successive days. Energy intake (EI) was assessed from detailed food records analyzed by computerized food charts. Energy balance was calculated as the difference between EI and EE for each subject. Mean (±SE) daily EE was 4,281 ± 170 and 3,937 ± 159 kcal/day for the winter and summer groups, respectively. Daily EI was 2,792 ± 124 kcal/day in group A and almost identical in group B. A negative energy balance of 1,422 ± 163 kcal/day and 924 ± 232 kcal/day (not significant) was calculated for groups A and B, respectively. Energy expenditure is primarily determined by the level of activity rather than by climate conditions; EI is insufficient to offset the high energy requirements under these conditions.

Original languageEnglish
Pages (from-to)750-754
Number of pages5
JournalMilitary Medicine
Volume161
Issue number12
DOIs
StatePublished - 1 Jan 1996
Externally publishedYes

Fingerprint

Dive into the research topics of 'Energy expenditure variations in soldiers performing military activities under cold and hot climate conditions'. Together they form a unique fingerprint.

Cite this