NUTR 30300 Lecture 12: NUTR recitation 12
7 Nov 2018
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NUTR recitation 12
Obesity not just a US problem
Possible factors for rise in obesity
- Urbanization
- Decrease in agricultural employment
- Increased computer and television use
- Increased soft drink consumption
- Genetics
Evaluating body weight
Metropolitan life insurance tables
- Compared mortality vs. body weight
Body mass index
- Epess the atio of a peso’s weight to the suae of thei height
- BMI=weight (kg)/height (m)^2
- BMI values below 18.5 or above 30 have increased risks of health problems
- Healthy BMI range:18.5-24.9
A peso’s atual weight is ot the ol fato to oside
Deteiig if a peso’s od weight is healthful; should ilude
- Determining the body mass index (BMI)
- Measuring body composition
- Assessing the pattern of fat distribution
Abdominal obesity
Body fat concentrated around the midsection is particularly problematic and is associated with
an even greater risk for chromonic diseases than is overall body fat
Measured by waist circumference clinically (MRI in some research settings)
Cut-offs for increases risk
- Men> or = 40 in (102 cm)
- Women > or = 35 in (88 cm)
What is a healthful body weight?
A healthful weight
- Is appropriate for your age
- Is maintained without constant dieting
- Is acceptable to you
- Is based on family history of body shape and weight
- Promotes good eating habits and allows for regular physical activity
- Low risk for diseases of obesity
Weight change
A positive energy balance of 3500 kcal leads to the 1-pound weight gain
A negative energy balance-discuss components and measurement of energy expenditure today
Determining TEE and components of TEE (total energy expenditure)
Measurement
- Direct calorimetry (heat production)
- Indirect calorimetry (gas exchange)
- Metabolic cart
find more resources at oneclass.com
find more resources at oneclass.com
Document Summary
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