section 3 Exercise testing

A BMI of 30 is equivalent to 30% body fat.

False

The larger the fat-free mass the greater the resistance to the electrical current from BIA.

False

The recommended procedure for skinfold measurements is to let go of the fold once the jaws of the caliper are placed on the skin.

False

Air displacement plethysmography is considered a densitometry method of body composition assessment.

True

Anthropometry is recommended over skinfolds for estimating the body composition of obese clients.

True

Which of the following is least likely to result in a measurement error when using the bioelectrical impedance method to monitor changes in body composition over a period of 6 months?

a different technician for the pre- and post measurements

Which of the following is not true of dual-energy X-ray absorptiometry?

a. It is the preferred method for estimating total body water.

Total body water can be estimated from which method?

a. bioelectrical impedance analysis (BIA)

Which of the following methods of body composition assessment is not considered a reference method?

a. bioelectrical impedance analysis (BIA)

Body density is defined as

a. body mass / body volume

The traditional two-component model of body composition separates the body into which two components?

a. fat and fat-free

The Bod Pod relies on

b. Boyle's law

Estimating body fat percentage from hydrodensitometry is an example of what model of body composition assessment?

b. two-component

The two-component model of body composition assessment assumes a fat-free body density of

c. 1.10 g·cc-1

Although body fat standards vary slightly with age and activity level which of the following ranges best represents a recommended healthy body fat percentage for adult women?

c. 18% to 28%

Excluding all other measurements (e.g. dry weight) and conversion formulas what is determined from the underwater weighing procedure?

c. body volume

Which measurements or estimations are necessary for the calculation of body volume using the air displacement plethysmography method?I. residual lung volumeII. thoracic gas volumeIII. body surface area

d. II and III

Which method of body composition assessment is likely to be the most difficult for the client to perform the testing procedure?

d. hydrostatic weighing

What are the units of measure for body mass index?

d. kg/m2

Which of the following variables is not likely to affect the underwater weighing procedure?

d. whether or not the client uses a nose clip during the procedure