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2 What You Will Do Analyze methods of measuring body composition. Define ranges of healthy body fat percentages for teens. Identify tools that are used in computing body composition.

3 Terms to Know girthcalipers

4 Evaluating Your Body Composition It is important to be aware that every method of measuring body composition is to some degree innacurate. If your body fat measurement is borderline for any test, consult a health care professional.

5 Body Circumference The body-circumference test measures girth. Girth The distance around a body part. Term to Know

6 Body Circumference Body fat is stored differently in males and females. In males, body fat accumulates around the waist. In females, body fat accumulates around the hips.

7 Body Circumference To measure body circumference, males should follow these steps: Measure your weight in pounds. Measure your girth at the waistline. Use the body fat percentage chart on page 160 to determine your percentage of body fat.

8 Body Circumference To measure body circumference, females should follow these steps: Measure your height. Measure the girth of your hips at the widest point. Use the body fat percentage chart on page 160 to determine your percentage of body fat.

9 Evaluating Body Circumference Once you have determined your percentage of body fat, you can evaluate your body fat score. If you do not score in the acceptable-to-most- desirable health zones, in Figure 5.10, page 161, try to improve your body composition.

10 Skinfold Measures Another method used to evaluate body composition is skinfold measurement using calipers. Calipers Tweezerlike device used to pinch a fold of skin surrounding adipose tissue. Term to Know

11 Lesson 3 Review 1.Recall Name two approaches for measuring body composition. 2.Vocabulary What are calipers used for? 3.Recall What is a healthy body-fat percentage for teen males? For teen females? Reviewing Facts and Vocabulary 1. Recall Any two of the following: body circumference, skinfold, underwater weighing, bioelectrical impedance, and MRIs. 2. Vocabulary Calipers are used for measuring percentage of body fat. 3. Recall Males, 7-20%; females, %.

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