chapter 10 Flashcards
overweight
having extra weight from bone, muscle, body fat and/or body water
obesity
condition characterized by excessive and unhealthy amounts of body fat
___% of American adults over the age of 20 were obese in 2017-march 2020
42
which 2 states have the highest % of obesity
kentucky, west virginia
BMI below 18.5
underweight
BMI 18.5-24.9
healthy
BMI 25-29.9
overweight
BMI 30-39.9
obese
BMI 40+
extremely obese
BMI
numerical value that reflects body weight adjusted for height
two major components of body composition
fat-free mass
total body fat
fat-free mass
lean tissues
body water
mineral rich tissues
protein rich tissues
total body fat
adipose tissue
essential fat
adipose tissue
adipose cells store and release fat for other cells to use as fuel and secrete hormones and other substances
adipose tissue found in
subcutaneous fat and visceral fat
subcutaneous fat
helps insulate body against cold temperatures and protects muscles and bones from bumps and bruises
visceral fat in the
omentum
omentum
structure under the abdominal muscles and hangs over the intestines
visceral fat function
makes substances that cause inflammation in the body
various indirect methods to assess body composition
underwater weighing
dual energy x-ray absorptiometry
air displacement
bioelectrical impedance
skinfold
underwater weighing
involves comparing a persons weight “on land” to their weight when completely submerged in a tank of water
underwater weighing is based on
lean tissue being denser than water
underwater weighing considerations
inconvenient, expensive, impractical
dual energy x ray absorptiometry
multiple low energy x-rays to scan the entire body