body composition basics
what does body composition refer to?
the amounts of fat and fat-free tissues in the body.
what is the recommended % body fat for adult men?
8-19%. really less then 20%
what is the "andriod" patern of obesity?
fat stored in men in the upper body and waist
what is BMI used for?
to estimate body fat based on heaight and weight
what happens when someone is underweight
they either lose muscle mass or strength from malnutrition
what are the two main types of body fat?
essential fat and storage fat
what is the recommended % body fat for adult men?
21-32%, ideally less than 30%
what is the "gynoid" pattern of obesity?
fat stored in hips, thighs, and buttocks, common in women
what does a waist-to-hip ration measure?
the distribution of fat in the body
what condition can result from underweight women with menstrual abnormalities?
infertiliy
what is the function of essential fat?
for body funtioning and found in nerves and cell membrane
what % range is typical for young adult women?
21-25%
what % pf U.S adults who are obese according to recent estimates?
34%
what is the skinfold test used for?
measuring body fat percentage by pinching skin folds.
what diseases are linked to underwight and eating disorders
heart,kidney, digestive problems; poor immune function
what percentage of essential fat is needed for men and women
3% for men, 12% for women
what % range is typical for young adult women?
21-25%
what % of U.S children/adolescents (2-19 years) are obese?
17%
what method uses low-radiation x-rays to measure fat?
daul-energy x ray aborptimetry
how do you calculate fat- free weight?
total body weight x (100% - % body fat)
what is storage fat and where is it located?
fat stored in adipose tissue- either viceral (around organs) or subcutaneous (below the skin)
what defines overweight or obesity?
abnormal or excessive fat accumulation that poses a health risk
name two chronic dieases linked to obesity
heart disease, diabetes, cancer, or hypertension
what is bioelectrical impedance an analysis?
a test that passes small electrical currents throught the body to estimate body fat
optimal weight = fat-free weight / (1-desired 5 body)