Energy Balance of Canadian Armed Forces Personnel during an Arctic-Like Field Training Exercise

被引：18

作者：

Ahmed, Mavra ^{[1
]}

Mandic, Iva ^{[2
]}

Desilets, Elliot ^{[3
]}

Smith, Ingrid ^{[4
]}

Sullivan-Kwantes, Wendy ^{[4
]}

Jones, Peter J. ^{[3
]}

Goodman, Len ^{[4
]}

Jacobs, Ira ^{[2
,5
]}

L'Abbe, Mary ^{[1
,6
]}

机构：

[1] Univ Toronto, Dept Nutr Sci, Toronto, ON M5S 3E2, Canada

[2] Univ Toronto, Fac Kinesiol & Phys Educ, Toronto, ON M5S 2W6, Canada

[3] Univ Manitoba, Dept Human Nutr Sci, Winnipeg, MB R3T 6C5, Canada

[4] Def Res & Dev Canada, Toronto Res Ctr, Toronto, ON M3K 2C9, Canada

[5] Univ Toronto, Fac Med, Dept Pharmacol & Toxicol, Toronto, ON M5S 3E2, Canada

[6] Univ Toronto, Fac Med, Dept Nutr Sci, Med Sci Bldg,1 Kings Coll Circle,Room 5368, Toronto, ON M5S 1A8, Canada

来源：

NUTRIENTS | 2020年 / 12卷 / 06期

关键词：

energy balance; energy intake; energy expenditure; dietary intake assessment; nutrition; military training; cold environment; measured food intake and waste; READY-TO-EAT; SOLDIERS; MEAL;

D O I：

10.3390/nu12061638

中图分类号：

R15 [营养卫生、食品卫生]; TS201 [基础科学];

学科分类号：

100403 ;

摘要：

Operating in temperature extremes frequently leads to a discrepancy in energy balance. Investigating the effects of operating in extreme cold temperatures on metabolic requirements has not been well described in Canadian Armed Forces (CAF) personnel. The objective was to accurately assess energy deficits using the "gold standard" methodology for measuring energy intake (EI) and energy expenditure (EE). Nutritional intake of a convenience sample of 10 CAF Class A Reservists, completing a basic military qualification (land) course under winter weather conditions, was assessed using the daily measured food intake/food waste collections. EE was measured by the doubly-labelled water method. Average EI was 2377 +/- 1144 kcal/day, which was below the EE (4917 +/- 693 kcal/day), despite having similar to 5685 kcal available in the field rations. A significant body weight loss of 2.7% was associated with the average daily energy deficit of 2539 +/- 1396 kcal. As a result, participants demonstrated voluntary anorexia. Such results may have important implications for the impairment of performance and health under longer duration operations.

引用

页数：12

共 36 条

[1] Comparison of dietary intakes of Canadian Armed Forces personnel consuming field rations in acute hot, cold, and temperate conditions with standardized infantry activities [J].