Quiz 2 Flashcards
Assumptions for bioelectrical imedance method are
Fluid conduct electricity
Approx 73% of body water is contained in fat free body mass
Your body is a perfect cylinder
Muscle cells contain water, therefore conduct well
Which of the following most accurately indicates the components of body composition that can be determined using skinfold measurements and equations
Two component - fat mass and fat free mass
Which of the following methods may be used to check the calibration of a skinfold caliper
Use a calibration bar, if the caliper correctly reads the size of the bar, the caliper is calibrated at that measurement
One ot the assumptions of the skinfold method is that measuring skinfold thickness at multiple sites provides a good measure of subcutaneous fat. This assumption reflects which measurement concept
Validity of the skinfold method
Impedance is defined as the ability of an electrical current to pass through body tissues
False
Dehydration state of the body misleads the bia result by overestimating on body fat
True
Muscle tissue do not conduct electricity well, thus they have low impedance
False
As the sum of skinfolds increases, the density of the body increases
False
To check whether you are grasping muscles when measuring a skinfold thickness, you may ask the client to contract the underlying muscle. Then, make sure him/her relax the muscle while taking and reading the measurement
True
The skinfold method accurately measures visceral fat
False
Skinfold thickness measurement measures one layer of skin and subcutaneous fat
False - 2 layers + sub
When you make a fold, your thumb and index finger are placed approximately 8 cm apart so that a full fold can be pinched up firmly and cleanly from the underlying tissue
True
Using Durin and womersley table you can estimate % body fat by calculating the sum of biceps, triceps, subscapular and suprailiac folds
True
Abdominal skinfolds from standardised sites is a vertical fold and taken 2cm lateral to the umbilicus
False - Jackson
