Which of the following is not a method to determine body composition

This MCQ was made to help you understand what your body is made of, what effects it and how to calculate and estimate BMI. This MCQ also relates to the learning outcomes mapped to the body compostion lecture in phase 1 at Warwick medical School. Good luck!

Reviewed by Jonathan Loomes-Vrdoljak

Body composition

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Question 1

Describe body composition

A

The relative proportions of protein, fat, water, and mineral components in the body that make up total body weight

B

The relative proportions of protein, fat, water (excluding skin and bone) in the body that make up total body weight

C

The relative proportions of protein, fat (excluding skin and bone and water) in the body that make up total body weight

D

The relative proportions of water, and mineral components in the body that make up total body weight

Question 2

What is fat free mass and what does it consist of?

A

Body mass that only takes fat mass into consideration

B

Body mass that consists of free fatty acids

C

Body mass that does not take fat mass into consideration (contains water, protein, bone minerals)

D

Body mass only considering the fat surrounding the abdominal region

Question 3

What is body weight composed of?

A

Free fat mass + water and bone minerals

B

Free fat mass + Fat mass

C

Fat mass + muscle mass + bone mass + water

D

Bone mass + fat mass + free fat mass

Question 4

How do you measure BMI?

A

BMI = mass (kg)/(height (m))^2

B

BMI = (mass (kg)) ^ 2 / height (m)

C

BMI = (mass (kg)) ^ 2 / height (cm)

D

BMI = mass (kg)/2(height (cm))

Question 5

Your white British female patient weighs 53 kg and is 168 cm tall. Calculate and interpret their BMI

A

1.88

B

16.7

C

18.8

D

17.6

Question 5 Explanation: 

For a white female: >18.5 - underweight 18.5 and 24.9 – healthy weight range 25 and 29.9 – overweight range

Question 6

You would like to measure the BMI of a bed bound patient, but they cannot stand up to have their height taken for the calculation. What measure could you use to approximate their BMI?

A

Ulnar length

B

Femoral circumference

C

Mid upper arm circumference

D

Knee height calliper

Question 6 Explanation: 

Knee height, ulnar length and demispan can all be used to estimate height.

Question 7

Which of the following is not a limitation of BMI?

A

It does not take age and gender into consideration

B

It does not take body composition into account

C

It does not take bone density into account

D

BMI in children and adolescence can vary due to differences in fat-free mass

Question 8

Which of the following is a limitation in approximating BMI in measures such as mid arm circumference?

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When using bioelectrical impedance for measuring body composition, why does an electrical current travel faster through muscle than it does through fat?

a) Muscle contains less water than fat

b) Muscle contains more water than fat

c) Muscle weighs more than fat

d) Muscle weighs less than fat

Question 10

What is the best method to estimate changes in body fat during weight loss?

a) BMI

b) DXA

c) Four-compartment model

d) MRI

 

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Which of the following is not a method to determine body composition

About the book

Find out more, read a sample chapter, or order an inspection copy if you are a lecturer, from the Higher Education website

What methods are used to determine body composition?

Criterion methods include densitometry, computed X-ray tomography (CT), magnetic resonance imaging (MRI), and DXA. Indirect methods, including anthropometry and bioelectrical impedance analysis (BIA), provide estimates or indices of body composition based on results from direct or criterion methods.

Which of the following is not the method of assessing body composition?

Answer and Explanation: The correct option is C. Body mass index and E. Light absorption technique.

What are the 4 components of body composition?

The 4-component (4C) model, which divides body weight into fat, water, mineral, and protein, can overcome these limitations.

What are the 3 most accurate ways to measure body composition?

Here are the 10 best ways to measure your body fat percentage..
Skinfold Calipers. ... .
Body Circumference Measurements. ... .
Dual-Energy X-ray Absorptiometry (DXA) ... .
Hydrostatic Weighing. ... .
Air Displacement Plethysmography (Bod Pod) ... .
Bioelectrical Impedance Analysis (BIA) ... .
Bioimpedance Spectroscopy (BIS).