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Nutritional Needs in Cold and High-Altitude Environments: Applications for Military Personnel in Field Operations (1996)
Institute of Medicine (IOM)

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. "3 Cold Weather and High-Altitude Nutrition: Overview of the Issues." Nutritional Needs in Cold and High-Altitude Environments: Applications for Military Personnel in Field Operations. Washington, DC: The National Academies Press, 1996.

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TABLE 3-1 Similarities and Dissimilarities Between Cold and High-Altitude Environments

Similarities

Dissimilarities

Low ambient temperatures

Lower atmospheric oxygen tension at high altitude

Diuresis, at least initially

Usually greater anorexia and hypophagia at high altitude

Increased energy requirements for work

Fat tolerated well in the cold

Lack of water except for ice and snow

Fat not tolerated well at high altitude

Difficult to prepare food

 

Carbohydrate is tolerated well

 

Protein not particularly advantageous

 

Arctic Biology and Medicine: The Physiology of Work in Cold and High Altitude, at Fort Wainwright, Alaska (Helfferich, 1966). General Ross, the Yukon Commander, gave the welcoming address at this 1966 meeting of environmental physiologists, and his words regarding the military relevancy of cold and high-altitude research are as appropriate now, as then:

Military interest is expanding to areas that were once considered uninhabitable and forbidding, such as the Arctic. The geopolitical importance of the Arctic basin and the Arctic mountainous area necessitates much greater knowledge and special understanding of these areas…In light of the constantly changing military requirements, it is singularly important for us to understand the physiological responses and limits of man to these unusual stresses in order to utilize human capabilities maximally in the accomplishment of our military mission. It is also necessary for us to understand what measures can be taken to improve the functional capacity of military personnel in these adverse and hostile environments…(Helfferich, 1966, p. 1).

PREVIOUS SYMPOSIA

During the 1950s and 1960s there were a number of symposia or conferences on environmental physiology, usually sponsored or cosponsored by the U.S. Armed Services (Table 3-2). These excellent reviews of environmental medicine came to an end after the mid 1960s, perhaps due to a lack of military sponsorship. Their end also coincided with a gradual decline in the amount of contract funds available from the Armed Forces to support extramural research of this nature.

Historically, a significant proportion of environmental medicine research during the World War II and Korean War eras was conducted in government-supported civilian research institutions such as the Universities of Illinois, Minnesota, Washington, California, Hawaii, Colorado, and Alaska, and in the Fatigue Laboratory at Harvard University. In the 1970s and 1980s the emphasis began to shift from extramural to intramural research, and the Armed

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Front Matter (R1-R16)
I: Committee Summary and Recommendations (1-2)
1 A Review of the Physiology and Nutrition in Cold and in High-Altitude Environments (3-58)
2 Committee on Military Nutrition Research Recommendations and Conclusions (59-80)
II: Background and Introduction to theTopic (81-82)
3 Cold Weather and High-Altitude Nutrition: Overview of the Issues (83-94)
4 Leadership Insights for Military Operations in Cold Weather and at High Altitudes (95-100)
5 Cold-Weather Field Feeding: Military Rations (101-114)
6 Feeding the US Army Sixth Infantry Division (Light) in the Cold (115-122)
Part II Discussion (123-124)
III: The Cold Environment (125-126)
7 The Physiology of Cold Exposure (127-148)
8 Military Schedules vs. Biological Clocks (149-160)
9 Influence of Cold Stress on Human Fluid Balance (161-180)
10 Muscle Metabolism and Shivering During Cold Stress (181-188)
11 Macronutrient Requirements for Work in Cold Environments (189-202)
12 Cold Exposure, Appetite, and Energy Balance (203-214)
13 Effects of Cold and altitude on Vitamin and Mineral Requirements (215-244)
14 Micronutrient Deficiency States and Thermoregulation in the Cold (245-256)
15 Drug-Induced Delay of Hypothermia (257-270)
Part III Discussion (271-292)
IV: The High-Terrestrial Environment (293-294)
16 The Physiology of High-Altitude Exposure (295-318)
17 Physical Performance at High Altitudes (319-330)
18 Fluid Metabolism at High Altitudes (331-356)
19 Maintenance of Body Weight at High Altitudes: In Search of 500 kcal/day (357-378)
20 Energy and Macronutrient Requirements for work at High Altitudes (379-392)
21 Oxidative Stress at High Altitudes and Effects of Vitamin E (393-418)
Part IV Discussion (419-432)
V: Performance in Cold and in High-Altitude Environments (433-434)
22 Effets of Altitue on Cognitive Performance and Mood States (435-452)
23 Food Components and Other Treatments That May Enhance Mental Performance at High Altitudes and in the Cold (453-466)
General Discussion (467-478)
Appendixes (479-480)
A: Environmental Stress Management at High Altitudes by Adaptogens, summary of unpublished manuscript (481-484)
B: Biographical Sketches (485-500)
C: Abbreviations (501-504)
D: Factors Related to Nutritional Needs in Cold and in High-Altitude Environments- A Selected Bibliography (505-554)
Index (555-568)