Health Dy Lecture 8

The body’s relative amounts of fat and lean body tissue (fat-free mass - FFM)

Body Composition

What are the 4 components of FFM

Muscle, Bone, Water, Organ Tissues

tissue in which fat is stored; fat cells

Adipose tissue

Fat located under the skin

Subcutaneous fat

fat located around major organs (intra-abdominal fat)

Visceral fat

Fats incorporated in various tissues of the body, critical for normal body functioning

Essential fat

What % of essential fat in males and femals

3-5, 8-12

Where is essential fat found

Major organs, Muscle, Central Nervous Systems

Percentage of total body weight

Body fat percentage

Not all fat is bad t or f

True

Excessive body fat leads to-

CV disease, hypertension, type 2 diabetes, cancer

absent or infrequent menstruation, sometimes related to low levels of body fat and excessive quantity or intensity of exercise

Amenorrhea

body weight that falls above the recommended range for good health + what bmi range

Overweight 25-29.9

severly overweight, characterized by an axcessive accumulation of body fat + what bmi range

obesity 30 and up

what percentage of adult americans are overweight?

62-69%

What percentage of males vs females are obese

34% male, 38% women

Based on the concept that a person’s weight should be proportional to height

BMI (Body mass index)

How is BMI calculated

total body weight / the square of body height

what BMI range is healthy

18.5- 24.9

does BMI take % of fat or FFM into account

No

Measured at the narrowest point below the ribs

Waist circumference

Measured at the widest point

Hip circumference

What three foods does the waist to hip ratio measure

pear avocado apple

What principle is hydrostatic weighing based on?

Archimedes