# Shared Flashcard Set

## Details

Achieving and Maintaining a Healthy Body Weight
Chapter 11
9
Other
02/21/2011

Term
 Underweight
Definition
 having too little body fat to maintain health, causing a person to have a weight that is below an acceptable defined standard for a given height.
Term
 Overweight
Definition
 having a moderate amount of excess body fat, resulting in a person having a weight that is greater than some accepted standard for a given height but is not considered obese.
Term
 Obesity
Definition
 having excess body fat that adversely affects health, resulting in a person having a weight that is substantially greater than some accepted standard for a given height.
Term
 BMI
Definition
 Body Mass Index ( Quetelet's index) is a commonly used index representing the ratio of a person's body weight to the square of his or her height.  BMI=weight(kg)/ height (m)2
Term
 Why is BMI important?
Definition
 It provides an important clue to your overall health. Studies show that a person's risk for type 2 diabetes, igh blood pressure, heart dissease and other diseases largely increases when their BMI is at or above a value of 30 kg/m2. Having a very low BMI is considered a value below 18.5 kg/m2.
Term
 Conversion of weight and height
Definition
 to convert pounds to kg = divide by 2.2 (there are 2.2 pounds per kg)   convert hight to inches (12 inches per foot) convert inches to metres = x 0.0254 (0.0254 metres per inch)
Term
 Underwater Weighing Method
Definition
 A technician submerges a person underwater, while the person exhales fully while underwater. Used mostly or research purposes, and considered one of the most accurate. Can estimate body fat within a 2% to 3% margin of error. (Test does not work well for obese people)
Term
 Skinfold Measurements
Definition
 Involves pinching a person's fold of skin with it's underlying layer of fat at various locations of the body. Fold is measures by using a specially designed caliper. Cannot be used with obese people b.cus their skinfolds are to large. It is possible that this method will soon be useless for more than half of the pop. due to obesity. Major challenge=technician must predict a person's body fat by using one of more than 400 equations, and is only accurate if the correct equation is applied. when preformed by a skilled tech can be error of 3% to 4%.
Supporting users have an ad free experience!