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Nutritional Needs in Hot Environments: Applications for Military Personnel in Field Operations (1993)
Institute of Medicine (IOM)

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. "3. Physiological Responses to Excercise in Heat." Nutritional Needs in Hot Environments: Applications for Military Personnel in Field Operations. Washington, DC: The National Academies Press, 1993.

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Nutritional Needs in Hot Environments: Applications for Military Personnel in Field Operations

TABLE 3-2 Papers Reporting the Effect Heat Acclimatization Has on Metabolic Rate During Exercise

Study

n

Acclimatization (days)

Exercise Mode

Test Environment

Change in Metabolic Rate (ΔM)

%Δ

Cleland et al., 1969

3

7

Treadmill

Hot

NC*

—

Eichna et al., 1950

3

10

Treadmill

Hot

 

4

 

 

 

 

Cool

 

2

Gisolfi, 1973

6

8

Treadmill

Hot

 

12

Jooste and Strydom, 1979

4

7

Treadmill

Hot

 

?

 

 

 

 

Cool

 

?

Piwonka and Robinson, 1967

3

4

Treadmill

Hot

NC

—

Robinson et al., 1941

5

10–23

Treadmill

Hot

 

8

Rowell et al., 1967

6

11–12

Treadmill

Hot

NC

—

Sawka et al., 1983

42

6–10

Treadmill

Hot

 

3

 

 

 

 

Cool

 

5

Senay and Kok, 1977

5

8

Step

Hot

 

14

 

 

 

 

Cool

 

7

Shvartz et al., 1977

7

8

Step

Hot

 

16

 

 

 

 

Cool

 

14

 

7

8

Step

Hot

 

14

 

 

 

 

Cool

 

14

 

7

8

Step

Hot

 

10

 

 

 

 

Cool

 

9

Strydom et al., 1966

5

12

Step

Hot

 

17

Weinman et al., 1967

5

8

Treadmill

Hot

NC

—

 

5

8

Treadmill

Hot

NC

—

Wyndham et al., 1976

4

10

Cycle

Hot

NC

—

* No change.

SOURCE: Modified from Sawka et al. (1983).
Page
63
Front Matter (R1-R14)
Part I: Committee Summary and Recommendations (1-2)
1. Introduction and Backgrounds (3-44)
2. Conclusions and Recommendations (45-52)
Part II: Invited Presentations (53-54)
3. Physiological Responses to Excercise in Heat (55-74)
4. Effects of Excercise and Heat on Gastrointestinal Function (75-86)
5. Water Requirements During Excercise in the Heat (87-96)
6. Energetics and Climate with Emphasis on Heat: A Historical Perspective (97-116)
7. The Effect of Excercise and Heat on Mineral Metabolism and Requirements (117-136)
8. The Effect of Excercise and Heat on Vitamin Requirements (137-172)
9. Heat as a Factor in the Perception of Taste, Smell, and Oral Sensation (173-186)
10. Effects of Heat on Appetite (187-214)
11. Situational Influences on Food Intake (215-244)
Part III: U.S. Army Presentations: A Reevaluation of Sodium Requirements for Work in the Heat (245-246)
12. Responses of Soldiers to 4-gram and 8-gram NaCl Diets During 10 Days of Heat Acclimation (247-258)
13. Endocrinological Responses to Dietary Salt Restriction During Heat Acclimation (259-276)
14. Subjective Reports of Heat Illness (277-294)
Part IV: Committee Discussion Paper (295-296)
15. Food Intake, Appetite, and Work in Hot Environments (297-304)
Appendixes (305-306)
Appendix A: Military Recommended Dietary Allowances, AR 25-40; 1985 (307-328)
Appendix B: Nutritional Needs in Hot Environments -- A Selected Bibliography (329-352)
Appendix C: Biographical Sketches (353-362)
Index (363-378)