Body Composition Assessment

Question 1

How many levels of body composition are there

Answer 1

5

Question 2

What is body composition used for

Answer 2

To identify what % of body is lean tissue and what % is fat tissue

Question 3

What are they things that play a roll in body composition

Answer 3

Gender, age, genetics and activity level

Question 4

What is percent body fat

Answer 4

Portion of total body weight that is composed of fat tissue

Question 5

What is lean tissue

Answer 5

Nonfat or lean tissue made up of muscles, tendons, bones, and connective tissue

Question 6

What is the body fat % of a healthy adult male and athletes

Answer 6

Healthy adult male: 15-18%

Athletes: 8-12%

Should not be below 3%

Question 7

What is the body fat % for a healthy women and athlete

Answer 7

Healthy women: 22-29%
Athlete: 10-18%

Should not be below 8%

Question 8

Why do we asses body composition

Answer 8

Set weights guidelines for sports with weighty classes

Monitor athletes on diet programs

Question 9

What is endomorph

Answer 9

Apple shaped or pear shaped

Women are usually more pear shaped

Question 10

What is mesomorph and ectomorph

Answer 10

Mesomorph- normal body type

Ectomorph- skinny body type

Question 11

Define obesity

Answer 11

Extreme amount of excessive fat

Question 12

What is consider obese for females and males

Answer 12

Females- over 30% body fat

Male- over 20% body fat

Question 13

How is obesity measured ?

Answer 13

BMI and body composition

Question 14

What is obesity determined by

Answer 14

Number of adipose cells

Size of adipose cells

Question 15

What is BMI used to asses

Answer 15

Normalcy for body weight and determine health problems

Question 16

What is consider normal BMI

Answer 16

Anything less than 25

Question 17

What is considered overweight BMI

Answer 17

BMI from 25-30

Question 18

What is consider obese BMI

Answer 18

Anything more than 30

Question 19

What are the different ways to asses body comp

Answer 19

Hydrostatic weighing 
Bio electrical impedance
Skinfold measurements
Girth measurements
BOD POD
DEXA

Question 20

What is hydrostatic weighing

Answer 20

The gold standard (original method)
Underwater measuring
Muscle and bone weigh more then fat
Accuracy +- 3

Question 21

Why don’t we use hydrostatic weighing anymore

Answer 21

Too messy

Too dirty

Question 22

What is bioelectrical impedance

Answer 22

A weak electrical current is run through the body and impedance to the current is measured

Question 23

For bioelectrical, what does it mean if the currents runs through the body at a great rate

Answer 23

The body has more muscle present then fat

Question 24

What is the accuracy of bioelectrical impedance affected by

Answer 24

Caffeine, alcohol, and fluid intake

Question 25

What does skinfold measurements consist of

Answer 25

Inexpensive Lange caliper or fat-o-meter Measurements taken at different body sites and put into a forumla (body fat%)

Question 26

What is the error rate for skinfold measurement

Answer 26

3-5% of gold standard

Question 27

What are the measurement sites for skinfolds

Answer 27

``` Triceps (largest % change with exercise) Subscapular (smallest % change with exercise) Suprailiac Abdomen Ant thigh Midaxillary Chest Calf ```

Question 28

How many measurements should be taken at each site?

Answer 28

3

Question 29

Where should the measurements be taken

Answer 29

On the subjects right side

Question 30

How far should the caliper be from the grasp while measuring

Answer 30

1-2 cm

Question 31

What measurement should you record the thickness to?

Answer 31

Nearest 5 mm

Question 32

What is girth measurement used for

Answer 32

To predict body fat % To rank individuals in a group based on relative "fatness" Also to analyze body fat patterns

Question 33

What are some common sites for girth measurements

Answer 33

Biceps, forearm, abdomen, hips, thigh, calf

Question 34

What does IBV stand for

Answer 34

Initial body volume

Question 35

What does a bod pod consist of

Answer 35

Subject is weighed on an electrical scale to nearest 5kg | Rear chamber contains electronics, pressure transducers, breathing circuits, air circulation system

Question 36

What's the equation for IBV

Answer 36

Empty chamber volume-chamber volume with person inside

Question 37

What are the two things the person needs to do before getting into a bod pod

Answer 37

Be dry | Wear tights

Question 38

What is the definition of body composition

Answer 38

Chemical, structural, and anatomical components of the human body

Question 39

What does body density for BOD POD equal

Answer 39

Body mass (in air) / body volume

Question 40

What does the Siri equation equal?

Answer 40

Body density to body fat %

Question 41

What does DEXA stand for

Answer 41

Dual energy XRay absorptiometry

Question 42

What does DEXA consist of

Answer 42

Uses low dose x-rays to distinguish between lean tissue, fat tissue, and bone Very accurate Requires expensive equipment Also used to examine bone-mineral density -osteoporsis

Question 43

What's somatype

Answer 43

What you physically look like

Question 44

What's anthropometric

Answer 44

Shape if the human body

Question 45

What's the implications of BMI

Answer 45

Osteoarthritis Diabetes cardiovascular disease Cancer

Question 46

What's the limitations of BMI

Answer 46

Doesn't account bone density Doesn't account for activity Doesn't account for Fat