Basic Concepts
What is body composition?
The relative amounts of fat and fat free tissues in the body.
what is the recommended body fat percentage range for adult men?
8-19%, with 12-15% for young adults.
34%
What is BMI used to estimate?
Body fatness based on a persons height and weight
What are the two main components of body composition?
fat mass and fat free mass
What is the recommended body fat percentage for adult women?
21-32%, with 21-25% for young adults
What percentage of U.S children/adolescents are estimated to be obese?
17%
How does a bioelectrical impedance analysis estimate body fat?
By measuring resistance to a low level electrical current, fat impedes the current more than muscle
what percentage of essential fat is necessary for men?
about 3%
What is considered overweight and obesity?
Abnormal or excessive fat accumulation that presents a risk to health.
What are three chronic conditions associated with overweight and obesity?
Cardiovascular disease, diabetes, hypertension
Body fat percentage and regional fat distribution using low radiation X-rays.
what percentage of essential fat is necessary for women?
about 12%
Which obesity pattern is associated with higher risk for heart disease and diabetes?
Android pattern
Which body fat distribution pattern is more common in women?
Gynoid pattern
What is the waist to hip ratio used for?
to assess fat distribution and risk for diseases related to obesity
What is the function of storage fat in the body?
What are two health effects of being underweight?
Loss of muscle mass and strength, and menstrual abnormalities that can eventually lead to infertility.
What are two diseases that obesity directly contributes to?
Heart disease and some cancers
How do you calculate fat free weight?
Fat free weight= total body weight x 1-% body fat