BODY COMPOSITION KIN 150 Micheline Vargas

Benefits of Healthy Body Composition Wellness for life Improved performance of physical activities Better self-image Better health

Body Composition Fat-free mass – all the body’s nonfat tissues bone, water, muscle, connective tissue, organ tissues, teeth Fat – essential fat (needed for body function) found in nerves, brain, heart, lungs, liver, mammary glands – nonessential (storage) fat (excess body fat) found in adipose tissue

Body Composition in the United States More than 50% of American adults are classified as overweight 22% of American adults are classified as obese Sedentary lifestyles are on the increase Average calorie intake has increased by calories/day in 10 years

Overweight and Obesity Basics Overweight: total body weight above recommended range Obesity: more serious degree of overweight based on percent body fat or other method Percent body fat -- proportion of body’s total weight that is fat -- is a more accurate measurement of body composition than total body weight

Assessing Body Composition Body Mass Index (BMI) – calculated by dividing weight by square of height Percent body fat – calculated using skinfold measurements Other methods – underwater (hydrostatic) weighing – bioelectrical impedance analysis (BIA)

Measuring Body Fat Distribution Waist circumference measurement Waist-to-hip-circumference ratio Results that exceed norms are associated with significant health risks

Achieving Healthy Body Weight and Composition Set an overall goal and realistic intermediate goals Calculate a target body weight or percent body fat Increase level of activity Follow a healthy diet Track progress

Determining Ideal Body Weight To estimate goal body weight at a particular fat % use the following formula : Fat Free Mass desired fat % –Example: 150 lbs: fat free mass = 115 lbs.: goal 20% fat: (to determine fat free mass subtract fat wt. from total wt.) 115 = 115 = 144 lbs