Nutrition and Physical Activity during British Army Officer Cadet Training: Part 1 - Energy Balance and Energy Availability

Edwards, Victoria, Myers, Stephen D., Wardle, Sophie L., Siddall, Andrew G., Powell, Steven D., Needham-Beck, Sarah, Kefyalew, Sarah S., Singh, Priya A., Orford, Elise R., Venables, Michelle C., Jackson, Sarah, Greeves, Julie P. and Blacker, Sam D. (2022) Nutrition and Physical Activity during British Army Officer Cadet Training: Part 1 - Energy Balance and Energy Availability. International Journal of Sport Nutrition and Exercise Metabolism, 32 (3). pp. 195-203. ISSN 1526-484X

[img] Text (Accepted author manuscript version reprinted, by permission, from International Journal of Sport Nutrition and Exercise Metabolism, 2022, https://doi.org/10.1123/ijsnem.2021-0190. © Human Kinetics, Inc.)
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Abstract

Military training is characterised by high daily energy expenditures (EE) which are difficult to match with energy intake (EI) potentially resulting in negative energy balance (EB) and low energy availability (EA). The aim of this study was to quantify EB and EA during British Army Officer Cadet (OC) training. Thirteen (seven women) OCs (mean ± SD: age 24 ± 3 years) volunteered to participate. EB and EA were estimated from EI (weighing of food and food diaries) and EE (doubly-labelled water) measured in three periods of training; nine days on-camp (CAMP), a five-day field exercise (FEX) and a nine-day mixture of both (MIX). Variables were compared by condition and gender with a repeated measures ANOVA. Negative EB was greatest during FEX (-2197 ± 455 kcal·d-1) compared with CAMP (-692 ± 506 kcal·d-1; p<0.001) and MIX (-1280 ± 309 kcal·d-1; p<0.001). EA was greatest in CAMP (23 ± 10 kcal·d-1) compared with FEX (1 ± 16 kcal·d-1; p=0.002) and MIX (10 ± 7 kcal·d-1; p=0.003), with no apparent difference between FEX and MIX (p=0.071). Irrespective of condition, there were no apparent differences between gender in EB (p=0.375) or EA (p=0.385). These data can be used to inform evidenced-based strategies to manage EA and EB during military training and enhance the health and performance of military personnel.

Item Type: Article
Uncontrolled Keywords: Energy expenditure; energy intake; military. Nutrition and Dietetics, Orthopedics and Sports Medicine, General Medicine, Medicine (miscellaneous)
Subjects: Q Science > QP Physiology
U Military Science > U Military Science (General)
Divisions: Research Centres > Occupational Performance Research Group
Related URLs:
Depositing User: Sam Blacker
Date Deposited: 08 Jun 2022 12:49
Last Modified: 08 Jun 2022 12:49
URI: https://eprints.chi.ac.uk/id/eprint/6295

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