CH. 8Ex3 - 3.24.11 CHAPTER 8 Obesity and Eating Disorders I...

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3.24.11 CHAPTER 8 Obesity and Eating Disorders I. WHAT IS OBESITY? a. What are some measures that are commonly used to determine if someone is overweight or obese? b. Body Mass Index i. A technique of weight assessment based on the relationship of height and weight ii. NIH calculation iii. BMI = Weight in Pounds x704.5 (height in inches) 2 iv. 19-24 normal weight v. 25-29 moderately overweight vi. 30+ obese (1/3) 1. 20-40% over ideal weight, you are considered mildly obese – 90% of the people who are obese are in this category 2. 41-99% over ideal weight, you are considered moderately obese 7-8% of the people who are obese are in this category 3. 100%+ above your ideal weight, you are morbidly (grossly) obese – 2-3% of those who are obese are in this category (.6% of obese people are morbidly obese) c. Benefits of using BMI i. Large populations ii. Cheap iii. Easy to figure out, anyone can do it d. Problems of using BMI i. Over generalize ii. Doesn’t account for lean mass iii. Doesn’t account for bone loss in eating disorders or elders iv. Doesn’t work for children (about 5 or 6 years old you are about a square, height and weight are the same) 1. With children we use BMI z-scores II. WHAT ARE THE CONSEQUENCES OF OBESITY? a. Negative physical consequences i. Increased risk of developing 1. Hypertension 2. Kidney Disease 3. Gallbladder disease 4. Cardiovascular disease 5. Some types of cancer ii. Increased risk of developing diabetes 1. One of the most common chronic diseases 2. Leading cause of death
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