Body Composition Flashcards
DEXA is?
The clinical standard for measuring bone mineral density
Body size is?
Volume, mass, length, and surface area of the body
Body mass index is
Correlates with the risk for various disease
BIA can?
Skin temperature can affect that validity of the assessment
MRI
Can create images of body tissues to assess composition
Body structure is?
Arrangement of body parts such as bone or muscle
Hydrostatic weighing is
Assesses body composition based on the principle of buoyancy
Essential fat is?
Present in nerve tissue, bone marrow, and organs
Bod Pod is
Measures air displacement to calculate body composition
Body composition
The ratio of fat-free mass to fat mass
List 3 aspects of the body that can compromise the physique
1) body size
2) body structure
3) body composition
True or false?
Relatively low percentage of body fat is generally advantages from a medical and metabolic standpoint
True
Athletic BF%
Males: ________
Females: ________
Females: 8%-15%
Good BF %
Males:_______
Females:_______
Males: 11%-14%
Females: 16%-23%
Acceptable BF%
Males:_______
Females:_______
Males: 15%-20%
Females: 24%-30%
Overweight BF%
Males:_______
Females:_______
Males: 21%-24%
Females: 31%-36%
Obese BF%
Males:_______
Females:_______
Males: >24%
Females: >36%
List 4 major compounds of the body that are differentiated between when implementing Densitometry techniques to measure body composition
1) minerals
2) fat
3) protein
4) water
CHO’s are also a component, but found in minimal quantities
According to the BMI classifications, a value of ______ or higher would signify an individual obese
30%
List 5 techniques that directly measure body composition
Skinfold measurements, hydrostatic weighing, air displacement plethysmography, bioelectrical impedance Analysis (BIA), computed tomography (CT), MRI, dual energy x-ray absorptiometry DEXA
Measure of subcutaneous fat that can give an estimation of FFM and FM
Skinfold measurements analysis
Measurement of reliance to an electrical current to estimate total body water, lean body mass, and fat mass
Bioelectrical impedance analysis
Use of ionizing radiation by an x-ray beam to create images of body segments
Computed Tomography
True or false?
Even though the gold standard for measuring body composition are hydrostatic weighing and DEXA, most acceptable assessment for athletes and field conditions is skinfold measurements analysis
True
Which of the following statements regarding the relationship between body composition and sport performance is incorrect?
A) excess fat ads mass without improving force production
B) excess fat can result in diminished acceleration capabilities
C) excess that decreases the metabolic cost of physical activity due to a lower ratio of metabolic tissue in the body
D) there is an inverse relationship between fat mass and jumping or running which require forceful translation of body weight
C) excess that decreases the metabolic cost of physical activity due to a lower ratio of metabolic tissue in the body
Which of the following is not a way in which body composition assessment is constructively used within athletics?
A) to assess genetic propensity for elite status in a given sport
B) to track effectiveness of training program
C) to estimate optimal competition weight in weight category sports
D) Monitor the health status of athletes and prevent disorders associated with extremely low levels of body fat
A) to assess genetic propensity for elite status in a given sport
Which of the following athletes has the greatest percentage of body fat
A) A ballet dancer with 90 pounds of FFM and 15 pounds of FM
B) A football offense of line man with 200 pounds of FFM and 40 pounds of FM
C) A softball player with 125 pounds of FFM and 28 pounds of FM
D) basketball player with 160 pounds of FFM and 16 pounds of FM
C) A softball player with 125 pounds of FFM and 28 pounds of FM
Which of the following statements related to essential fat is correct?
A) estimated essential fat for men is 8% of body mass
B) men can have a negligible quantity of body fat (
D) Women have a greater quantity of essential fat due to the children bearing and hormonal functions
Which of the following assessment is the least useful for athletes
A) Skinfold measurements
B) Hydrostatic weighing
C) bioelectrical impedance analysis
D) waist to hip ratio
D) waist to hip ratio
Which of the following assessments could easily classify a very lean, muscular athlete as obese or overweight
A) Skinfold measurements
B) BMI
C) DEXA scan
D) Bod Pod
B) BMI
Which of the following body composition assessment is known to have the greatest degree of validity (considered a gold standard)?
A) waist circumference measurement
B) CT scan
C) bioelectrical impedance analysis
D) hydrostatic weighing
D) hydrostatic weighing
Which of the following lists The correct site to use during skinfold measurement analysis while implementing a three site protocol on a female athlete?
A) triceps, suprailiac, and thigh
B) biceps, abdominal, and calf
C) Midaxillary, chest, and thigh
D) chest, abdominal, and thigh
A) triceps, suprailiac, and thigh
Hydration status can negatively affect validity of which of the following body composition assessment?
A) BMI
B) Skinfold measurements
C) CT scan
D) bioelectrical impedance analysis
D) bioelectrical impedance analysis
Which of the following statements concerning DEXA scanning for assessment of body composition is incorrect?
A) The assessment is based on the principle that compartments of the body with different densities absorb different amounts of low energy x-rays
B) The assessment allows for laxity in controlling participant conditions such as hydration status
C) The assessment permits estimates of regional composition
D) The assessment allows for small changes in the composition to be detected
B) The assessment allows for laxity in controlling participant conditions such as hydration status
