BODY COMPOSITION ASSESSMENT
EXAM
body composition - Correct Answers -refers to the relative % of body weight that is fat
mass and % that is fat-free mass
essential fat: definition and functions - Correct Answers -body fat that is necessary to
carry out normal function. Functions: thermoregulation, surrounding internal organs for
protection, hormone production, cell membrane integrity
non-essential body fat - Correct Answers -excessive body fat
purpose of body composition assessment - Correct Answers -to assess non-essential
body fat.
types of laboratory methods of assessing body composition - Correct Answers -
Underwater weighing
Air displacement plethysmograph
Total body water
Dual-energy X-Ray Absorptiometry (DXA)
Mulit-component models
strengths and weaknesses of BMI - Correct Answers -Strength
Comments easily and accurately assessed in clinical and non-clinical settings
Limitation
High SEE for % BF ( 5%) (high error rate)
waist circumference - Correct Answers -Overview
Associated with Health risk
Increase WC-increase intra-abdominal volume
Android (male-like) fat pattern
Large waist, deposits of intra-abdominal
skinfold thickness - Correct Answers -Overview
SEE =/- 3.5%
Assumptions
The amount of subcutaneous fat is proportional to total body fat
The exact proportion of sub. Fat to total fat varies with gender, age, and ethnicity.
EXAM
body composition - Correct Answers -refers to the relative % of body weight that is fat
mass and % that is fat-free mass
essential fat: definition and functions - Correct Answers -body fat that is necessary to
carry out normal function. Functions: thermoregulation, surrounding internal organs for
protection, hormone production, cell membrane integrity
non-essential body fat - Correct Answers -excessive body fat
purpose of body composition assessment - Correct Answers -to assess non-essential
body fat.
types of laboratory methods of assessing body composition - Correct Answers -
Underwater weighing
Air displacement plethysmograph
Total body water
Dual-energy X-Ray Absorptiometry (DXA)
Mulit-component models
strengths and weaknesses of BMI - Correct Answers -Strength
Comments easily and accurately assessed in clinical and non-clinical settings
Limitation
High SEE for % BF ( 5%) (high error rate)
waist circumference - Correct Answers -Overview
Associated with Health risk
Increase WC-increase intra-abdominal volume
Android (male-like) fat pattern
Large waist, deposits of intra-abdominal
skinfold thickness - Correct Answers -Overview
SEE =/- 3.5%
Assumptions
The amount of subcutaneous fat is proportional to total body fat
The exact proportion of sub. Fat to total fat varies with gender, age, and ethnicity.