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Open AccessArticle

Energy Requirements of US Army Special Operation Forces During Military Training

Military Nutrition Division, United States Army Research Institute of Environmental Medicine, 15 Kansas Street, Building 42, Natick, MA 01760, USA
Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, USA
Author to whom correspondence should be addressed.
Nutrients 2014, 6(5), 1945-1955;
Received: 27 March 2014 / Revised: 19 April 2014 / Accepted: 30 April 2014 / Published: 12 May 2014
(This article belongs to the Special Issue Sport and Performance Nutrition)
PDF [155 KB, uploaded 13 May 2014]


Special Operations Forces (SOF) regularly engage in physically demanding combat operations and field training exercises, resulting in high daily energy expenditure, and thus increased energy requirements. However, the majority of studies assessing energy requirements of SOF have been conducted on soldiers going through intense SOF initiation training. The objective of the current investigation was to determine the energy expenditure of SOF conducting military training operations. Thirty-one soldiers taking part in Pre-Mission Training (PMT n = 15) and Combat Diver Qualification Courses (CDQC n = 16) volunteered to participate in this observational study. Energy expenditure was determined using doubly labeled water. Body weight (83 ± 7 kg) remained stable during both training periods. Overall energy expenditure adjusted for body composition was 17,606 ± 2326 kJ·day−1. Energy expenditure was 19,110 ± 1468 kJ·day−1 during CDQC and 16,334 ± 2180 kJ·day−1 during PMT, with physical activity levels of 2.6 ± 0.2 and 2.2 ± 0.3 during CDQC and PMT, respectively. Compared to the Military Dietary Reference Intakes for energy (13,598 kJ·day−1), these data are in agreement with previous reports that energy requirement for SOF Soldiers exceed that of the average soldier. View Full-Text
Keywords: military training; doubly labeled water; energy requirements military training; doubly labeled water; energy requirements

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Margolis, L.M.; Crombie, A.P.; McClung, H.L.; McGraw, S.M.; Rood, J.C.; Montain, S.J.; Young, A.J. Energy Requirements of US Army Special Operation Forces During Military Training. Nutrients 2014, 6, 1945-1955.

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