HNF 461 1st Edition Lecture 33 Outline of Last Lecture 1 Nutrients Absolutely Required from Diet 2 Protein Energy Malnutrition 3 General Symptoms of PEM 4 Kwashiorkor 5 Marasmus 6 Recovery from PEM 7 Burns Surgery and Sepsis 8 Cancer 9 HIV AIDS 10 Exercise and Protein Outline of Current Lecture 1 BMI 2 BMI and Mortality 3 Children s BMI 4 Fat Distribution and Health Risks 5 Body Composition a Two Component Model 6 Measurement of Body Composition and Densitometry a Body Density Formula Current Lecture Body Composition BMI and Metabolic Syndrome Pt 1 I BMI a Establshed in 2000 although the concept had been along for a very long time before that b Tables of height and weight to establish ideal desirable and acceptable weights These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute c BMI weight in kg height in meters squared i BMI 18 5 underweight ii BMI 18 5 24 9 healthy iii BMI 25 29 9 overweight iv BMI 30 obese 1 30 Class 1 obesity 2 35 Class 2 obesity 3 40 Class 3 obesity II BMI and Mortality a Study done in 2010 followed 1 46M white adult males for about 5 years 160 000 deaths by the end of the trial i Important to notice that focused on Caucasians because different ethnic groups have different risks associated with BMI b Results show that with an increase in BMI there is increased risk of death c MBI 20 was weakly associated with increased mortality III Children s BMI a Children and teenagers ages 2 20 use different BMI charts because must take rapid growth into consideration b In the 95th percentile referred to as overweight even though are technically obese don t want parents to stop feeding children IV Fat Distribution and Health Risks a Women Waist 35 inches and waist to hip w h ratio 0 8 are at increased risk for obesity related diseases b Men Waist 40 inches and w h ratio 0 95 are at increased risk for obesity related diseases V Body Composition a Multicompartment Models different ways to organize the body b Two Component Model divides the body into fat mass and fat free mass i The majority of fat in the body is categorized as storage fat VI Measurement of Body Composition and Densitometry a Densitometry measures two compartments i Fat mass includes essential and non essential fats ii Fat free mass includes protein water carbohydrates and minerals iii Based on hydrostatic weighing weigh the body underwater 1 This technique allows the percentage of body fat and body composition may be estimated
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