EDKP 330 Lecture Notes - Body Mass Index, Underweight
19 Nov 2012
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Measure of obesity: measure a weight for specific height: doesn"t take into account specific body components (lean muscle vs fat) Not a good measure for athletes tend to have a higher bmi due to increased lean muscle giving a false reading of obesity. Not a good measure for youth difference in growth spurt occurrence. Use percentiles instead: take into account age, weight, height, gender: cannot be a clinical diagnostic tool. Metric: bmi (kg/m2)= weight (kg)/height2 (m) Imperical: bmi (kg/m2)= weight (pounds) x 703/height2 (inch) Obese >30. 00: class 1: 30-34. 99, class 2: 35-39. 99, class 3: >/40. Extremely high risk, eligible for surgery for fat reduction. Shows above that for youth we use percentiles instead of bmi b/c of variance in growth spurts/maturation. Takes into account heights, weight, age, gender: under weight: <5th percentile for age/gender, normal weight: 5-85 percentile, over weight: >/95 percentile. For both men and women, there is an increased risk of death at extreme ends j/u shape relationship.
