Body composition Flashcards
What 4 tissues are humans composed of
Epithelial
muscle
nervous
connective- bones and blood
Human body made up of 3 structural component
Muscle
bone
fat
Two component model
fat and fat free mass
what makes up fat free mass
Bones, water, vital organs, connective tissues
Chemical/four component model
Fat
protein
minerals
water
name 3 eating disorders
anorexia nervosa
Bulimia nervosa
binge eating disorder
Essential fat
-structural component of cell membranes
-synthesis of hormones
-transportstion of some vitamins
storage fat location
Located under skin, abdominal cavity and certain organs
Sex specific fat deposit locations in women
Breasts, pelvic area, thighs, buttocks, pear shape
% of essential fat in women and men
Women- 12%
male- 3%
% of storage fat in females and males
Female- 15%
male- 12 %
Male sex specific fat locations
upper torso, abdomen (apple shape)
what are 3 changes associated with aging
increased fat mass
decreased bone mass
decreased muscle mass
Which component model is preferred for equations for body density and volume
Four component model
what is a simple way to asses for central obesity
Waist circumference and waist to hip ratio high Association with totality
What does BMI not consider
Body composition
fast distribution
amount of visceral fat
ethnicity
Why is waist circumference better than BMI for predictor of obesity
Targets Visceral Fat: Directly measures abdominal fat, linked to health risks.
Better Predictor: Waist circumference closely correlates with risks like heart disease, diabetes.
BMI Limitations:
Doesn’t distinguish between muscle and fat.
May misclassify muscular or lean individuals.
Simple & Quick: Easy to measure and interpret.
how does bioelectrical impedence work
measures the resistance to flow of electricity in the body. impedance greater in adipose tissue
Full body scan is the best way to determine body composition, what problems does it have?
Its expensive and inaccessible
