Body Comp

Question 1

Hydrostatic weighing

Answer 1

Immerse body in water and measure how much water comes out

2 2.5 standard error

Need to account for residual lung volume

Question 2

Plethysmography

Answer 2

Testing takes place in closed chamber
Measure amount of air displaced

change of pressure in the chamber is measured and converted to percent body fat

Question 3

What side of body should skin fold measurements be taken on?

Answer 3

Right

Question 4

When taking measurements in same area what is the amount of difference between measurements that requires retest?

Answer 4

1-2 mm

Question 5

Two most common sites for skinfold test?

Answer 5

Subscapular

Triceps

Question 6

Bioelectrical Impedance Analysis

Answer 6

For finding body comp

uses small electrical current, measures resistance to the current

Resistance to flow is inversely related to amount of water in body

height2/resistance

Question 7

BIA protocol

Answer 7

NO eating or drinking 4 hours prior
NO exercise 12 hours prior
NO alcohol 48 hours
MO excessive water intake
Urinate within 30 mins