Lecture 2-28 ntr sec2 - Lecture 2-28 Energy Balance...

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Lecture 2-28 Energy Balance Imbalances Overweight/Obesity- Definitions - deposition of excess fat in the body Disorder of energy balance – energy intake > energy output Heterogeneous group genetic components, neurologic factors, numerous enzymes and enzymatic pathways, environment Genes that make ppl more susceptible and vice versa NOT necessarily eating too much and being lazy Operational def. – BMI =wt (kg) divided by (ht) 2 in meters 1 meter = 39.37” 1 kg= 2.2lbs Waist circumference HIGH RISK Male > 102 cm (>40 inches) Female > 88cm (>35 inches) Dangerous because fat in stomach is vicerol fat (wraps around organs) < 16= maybe indicator of eating disorders or underlying illness <18= underweight 18.5-24.9= “healthy” weight 25-29.9= overweight > 30 = obese Problems with BMI BMI doesn’t take into account body composition – ex. Body builder Can have Healthy BMI but excessive body fat Wide range of body fat – Table 8-6 Males- 12-20% (runners can get body fat down to 4%)
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This note was uploaded on 03/19/2008 for the course NTR 311 taught by Professor Lydiasteinman during the Spring '08 term at University of Texas at Austin.

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Lecture 2-28 ntr sec2 - Lecture 2-28 Energy Balance...

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