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Chapter 8 Energy Balance And Body Composition
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Chapter 8 Energy Balance And Body Composition

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  • 1. Energy Balance and Body Composition Studying = 1 or 2 kcalories/minute
  • 2. Energy Balance
  • 3. Food Composition
    • Direct calorimetry vs. indirect calorimetry
    • Physiological fuel value
  • 4. Food Intake
    • Hunger
    • Appetite
    • Satiation
    • Satiety
    • Overriding hunger and satiety
      • Stress eating
    • Sustaining satiation and satiety
      • satiating
  • 5. Food Intake
  • 6.
    • Sustaining satiation and satiety
      • lower-fat foods can be eaten in larger portions for the same number of kcalories
    Food Intake
  • 7. Food Intake
    • Hypothalamus
      • Neuropeptide Y
  • 8. Thermogenesis
    • Basal thermogenesis
    • Exercise-induced thermogenesis
    • Diet-induced thermogenesis
    • Adaptive thermogenesis
  • 9. Components of Energy Expenditure
  • 10. Components of Energy Expenditure
    • Basal metabolism
    • Basal metabolic rate (BMR)
    • Resting metabolic rate (RMR)
    • Physical activity
  • 11. Components of Energy Expenditure
    • Thermic effect of food (TEF)
    • Diet-induced thermogenesis (DIT)
  • 12. Estimating Energy Requirements
    • Gender
    • Growth
    • Age
  • 13. Estimating Energy Requirements
    • Physical activity
    • Body composition
    • Body size
  • 14. Body Weight, Body Composition, and Health
    • Body composition
    • Body weight = fat + lean tissue (including water)
  • 15. Defining Healthy Body Weight
    • The criterion of fashion: BMI of Miss America
  • 16. Defining Healthy Body Weight
    • The criterion of health
    • Body mass index (BMI)
      • =weight (kg)/height (m) 2
  • 17. BMI Values Used to Assess Weight
  • 18. Distribution of Body Weights in U.S. Adults
  • 19. Body Fat and Its Distribution
  • 20. Body Fat and Its Distribution
    • Some people need less body fat
    • Some people need more body fat
  • 21. Body Fat and Its Distribution
    • Fat distribution
      • Intra-abdominal fat
      • Central obesity
  • 22.  
  • 23. Body Fat and Its Distribution
    • Waist circumference-according to some...if it’s anything over 35”, it’s too much!
  • 24. Body Fat and Its Distribution
    • Other measures of body composition
      • Fatfold measure
      • Hydrodensitometry
      • Bioelectrical impedance
  • 25. Body Fat and Its Distribution
    • Other measures of body composition
      • Air displacement plethysmography
      • Dual energy X-ray absorptiometry (DEXA)
  • 26. Methods Used to Assess Body Fat
  • 27. Health Risks Associated With Body Weight and Body Fat
    • Health risks of underweight
    • Health risks of overweight
  • 28. BMI and Mortality
  • 29. Health Risks Associated With Body Weight and Body Fat
    • Cardiovascular disease
    • Diabetes
    • Cancer
    • Fat and fit versus sedentary and slim
  • 30. The Latest and Greatest Weight-Loss Diet - Again
    • The claims and truths of diet fads
    • High-protein, low carbohydrate diets
      • The diet’s appeal
  • 31. The Latest and Greatest Weight-Loss Diet - Again
    • High-protein, low carbohydrate diets
      • Don’t count kcalories
      • Satisfy hunger
      • Follow a plan
      • Limit choices
  • 32. The Latest and Greatest Weight-Loss Diet - Again
    • High-protein, low carbohydrate diets
      • Too much fat
      • Too much protein
      • Too little everything else
      • The body’s perspective
  • 33. Questions or Thoughts
    • If you have any questions or thoughts please feel free to post them in the Discussion Forum/Board or you can e-mail your instructor