3,2 Approaches to Determining Healthy Body Standards Flashcards
What are height-to-weight tables?
tables used by insurance companies in an attempt to link longevity to a person’s weight based on their height
What is BMI?
body mass index; improved measure of body fat relative to one’s height and weight
What are the categories of BMI?
underweight
healthy weight
overweight
obese
How do you calculate BMI?
weight (kg) / height^2 (meters)
What are some populations that BMI is not accurate for?
children
teens
pregnant/breastfeeding moms
short adults
muscular individuals
elderly
What are the desirable ranges of body fat for men and women?
men = 8-24%
women = 21-35%
What are the four methods to determine body fat percentage?
underwater weighing
bioelectrical impedance
dual energy x-ray absorptiometry
anthropometrics
What is underwater weighing?
individual is weighed on a scale and then again under water; difference is used to estimate the total body volume and percentage of lean muscles and body fat
What is bioelectrical impedance?
instrument with electrodes is connected to the body and a painless low energy electric current is sent through the body
What indicates high body fat percentage during bioelectrical impedance? Why?
higher resistance equals higher body fat; water (muscle) conducts electricity while fat resists electricity
What is Dual Energy X-ray Absorptiometry?
instrument that emits small doses of radiation determines the amount of fat, lean tissue, and bone in an individual
What are anthropometrics
measurement of proportions of body size
What is an example of anthropometrics for calculating body fat percentage?
calipers
What is android obesity?
fat stored in the abdominal area
Which type of obesity is more common in males? In females?
males = android
females = gynoid
