Estimates of nutritional energy intake and energy expenditure in Canadian Armed Forces personnel during a field winter training exercise at CFB Meaford 26-31 January 2015


  1. Jacobs, I.
Corporate Authors
Defence Research and Development Canada, Toronto Research Centre , Toronto ON (CAN);Toronto Univ, Toronto ONT (CAN) Faculty of Physical Education and Health
The primary objective of this interim report is to provide the contract scientific authority with the quantitative estimates of average nutritional energy intake (Appendix A) and energy expenditure (Appendix B) in CAF army volunteers participating in a field trial training exercise at CFB Meaford in January 2015. The “food waste” data collection method was used to generate estimates of average daily nutritional energy intake. The doubly labelled water technique was used to generate estimates of average daily energy expenditure. Both of these techniques are considered among the most valid methods for energy balance assessments under field conditions, but their execution is very demanding in terms of the resources required to carry out the associated data collection and analysis. The doubly labelled water technique used for estimates of daily energy expenditure, in particular, is very expensive because of the costs of the purchase of stable isotopes and the biochemical analyses of the biological samples obtained from the research participants. This field trial project is part of a larger investigation which is being conducted under laboratory conditions to assess the influence of ambient temperature on energy intake and expenditure when a standard set of simulated infantry physical activities are carried out in hot, cold, and temperate ambient temperatures. Extensive physiological data sets have been collected during the laboratory studies, and they will be used to generate
field feeding;eergy metabolism;energy expenditure;army rations;doubly labeled water
Report Number
DRDC-RDDC-2015-C216 — Contract Report
Date of publication
01 Jul 2015
Number of Pages
Electronic Document(PDF)

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