Unit 11 Body Composition (Week 5) Flashcards
obesity:
Excessive accumulation of body fat. People with BMIs of 30 and above are considered obese.
somatotype:
A category to which people are assigned according to the extent to which their bodily physique conforms to a basic type.
Mesomorphic
Muscular. Ability to gain muscle easier than other body types
Ectomorphic
“slim” ; lean and light musculature
Endomorphic
heavy rounded body build often with a marked tendency to become fat.
body mass index (BMI):
Divide ones weight (in kilograms) by ones height (in meters) squared to determine ones BMI.
overweight:
Above a weight considered normal or desirable (BMIs of 25 to 29.9)
obesity:
Excessive accumulation of body fat. (BMIs of 30 and above are considered obese)
Fat in the abdominal region, known as
visceral or intra-abdominal fat
Fat in the abdominal region is associated with greater risk of
type 2 diabetes, dyslipidemia (elevated levels of free fatty acids in the blood), hypertension, and cardiovascular disease.
waist circumference:
Refers to a numerical measurement of ones waist.
The three major structural components of the human body include
muscle, bone, and fat
lean body mass (LBM):
All of you, except your fat. Includes bone, brain, organs, skin, nails, muscle, all bodily tissues. Approximately 50-60% of lean body mass is water.
total body fat:
Total amount of body fat throughout the body in the way of either body fat percentage or weight in body fat.
essential fat:
Fat required for normal physiological functioning.
storage fat:
Represents the energy reserve that accumulates as adipose tissue beneath the skin and in visceral depots, averaging 12% body mass for men and 15% body mass for women
Dual energy X-ray absorptiometry (DEXA):
A single X-ray source is used to determine whole-body and regional estimates of lean tissue, bone, mineral, and fat.
The eight most frequently measured skinfold sites are
the triceps, subscapular, pectoral, mid-axillary, abdominal, suprailiac, quadriceps, and calf.
How to calculate goal body weight
LBM weight ÷ (1.0 – desired body fat %) = goal bodyweight.
Body mass index (BMI) is used to assess:
relative weight to height ratio and as a predictor of future disease risk
Bioelectrical impedance analysis (BIA) is one method to determine body composition.
TRUE
The body is composed of lean body mass (LBM) and body fat
TRUE
What are methods to assess body composition?
DEXA, skinfold, BIA, hydrostatic weighing, NMR, NIR, potassium ion, ultrasound
When taking skinfold measurement readings, only one attempt per site is recommended for an accurate reading.
FALSE
The somatotype system classifies the human body into how many categories?
3
