Nutrition, 7.4 Book Notes
What are desirable amounts of body fat in woman?
21-35%
What are desirable amounts of body fat in men?
8-24%
Definition of Dual Energy X-ray absorptiometry (DEXA)
A highly accurate method of measuring body composition and bone mass and density using multiple low-energy X-rays
Definition of Air Displacement
A method for estimating body composition that makes use of the volume of space taken up by a body inside a small chamber.
Definition of underwater weighing
A method of estimating total body fat by weighting the individual on a standard scale and then weighting him or her again submerged in water. The difference between the two weights is used to estimate total body volume.
What is upper-body obesity also known as?
Android obesity
Why is lower-body obesity more common in females?
Because estrogen and progesterone encourage lower-body fat storage
Why is a android obesity typically found in men?
Because high blood testosterone levels encourage upper-body obesity
Upper-body obesity is closely related with what health risks?
Cardiovascular disease Hypertension Type 2 diabetes
What is the most accurate way to determine body fat?
DEXA
What is lower-body obesity also known as?
Gynoid or gynecoid obesity
How can body weight be measured?
On a scale
Definition of bio-electrical impedance
The method to estimate total body fat that uses a low-energy electrical current. The more fat storage a person has, the more impedance (resistance) to electrical flow will be exhibited.
What is lower-body obesity?
The type of obesity in which fat storage is primarily located in the buttocks and thigh area.
Definition of Upper-body obesity
The type of obestiy in which fat is stored primarily in the abdominal area; defined as a waist circumference more than 40 in. (102 centimeters) in men and more than 35 in. (89 centimeters) in woman
What is a common method used to estimate body volume?
Underwater weighing
What kind of obesity interferes with the liver's ability to use insulin and negatively affects lipoprotein metabolism by the liver?
Upper-body obesity
What must be known to measure body fat content accurately?
body weight and body volume
