Body Composition Flashcards

1
Q

What are the major structural components

A

Muscle
Fat
Bone

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2
Q

Fat stored in bone marrow, heart, lungs, liver, spleen, kidneys, intenstines, muscles, and lipid rich tissue of CNS

A

Essential Fat

Males: 3%

Females: 12%

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3
Q

In female, essential fat includes

A

sex specific/characteristic fat.

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4
Q

fat that accumulates in adipose tissue?

A

storage fat

female 15%
males 12%

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5
Q

contains small % of essential fat stores within CNS bone marrow and internal organs?

no fat at all?

A

Lean body mass

Fat free mass

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6
Q

females with low body fat increase chance of

A

delayed onset of menstruation
irregular cycles

increased risk of MS injury during vigorous exercise.

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7
Q

for bodyfat and menstruation, 17% is for

22% is

A

onset of menstruation

to sustain normal cycle.

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8
Q

If body fat is to low, body senses energy reserves are inadequate to sustain

A

pregnancy

hormonal disturbances are triggered with low body fat.

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9
Q

hormone made by fat cells which regulates amount of fat stored in body. “satiety” hormone

A

Leptin.

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10
Q

critical blood leptin level necessary to trigger

A

reproductive ability in females.

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11
Q

leptin is mediator b/w

A

adipose tissue and gonads.

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12
Q

onset of menarche is closely related with achievement of

A

certain body weight or percent body fat.

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13
Q

females who start training early show lower lifetime occurrences of

A

CA in breast/ovaries.

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14
Q

women who workout 4 hours a week decrease risk of CA by

why?

A

50%

less production of estrogen over lifetime.

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15
Q

losing weight can prevent 1 of __ cancers.

can account for what percentages.

A

6

14% men

20% female.

men is pancreas/liver/prostate/stomach.

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16
Q

there is no link between excess fat and

A

brain skin or bladder CA

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17
Q

what are the somatotypes

A

ectomorph
mesomorph
endomorph

18
Q

derived from body mass and stature

A

BMI

19
Q

BMI classifications?

A

18.5-24.9 normal
25-29.9 overweight
>29.9 obese

20
Q

duration of exercise has effect on

A

fat loss.

21
Q

what alters body comp?

A

circuit-resistance

22
Q

weight loss occurs with how much work?

A

5x per week

500-1000 cal/ 300 mins.

23
Q

more lean tissue is lost when body mass is reduced by

A

diet alone.

24
Q

aerobic exercise shrinks

A

fat cells.

25
Q

excess weight gain parallels with ____ more than ___

A

reduced activity

increased caloric intake.

26
Q

Is spot reduction possible

A

hell naw.

27
Q

excess enlargement of body’s total quantity of fat or excess storage of energy in adipose tissue

A

Obesity.

men above 20%

women above 30%

28
Q

in last 30 years, obesity has

A

tripled.

29
Q

if ur obese as a child, how likely will u be obese as adult?

A

3x more.

30
Q

how much weight do women put on between 24-34

A

30 lbs.

31
Q

what are some biochemical factors of obesity

A

DIT
Fidgeting
Basal Body Temp
Brown Fat

32
Q

About 25% of variation of body fat and total fat determined by

what about the 30%

A

genetics.

cultural effect.

33
Q

overweight and obesity are associated with increased overall

A

rate of death

34
Q

obesity is an independent and powerful risk factor of

A

heart disease

35
Q

male pattern of obesity?

female?

A

upper body/abs

lower body/hips/thighs

36
Q

Upper body obesity at risk for

A
CAD
HTN
Stroke
elevated blood lipid
Diabetes.
37
Q

where is there more metabolically active fat?

A

upper body.

38
Q

structural diff in adipose tissue in obese vs non obese is

A

cell number.
25-30 billion (non obese)

260 billion obese

39
Q

only form of exercise to shrink fat cells

A

aerobic exercise

40
Q

Extremes of dietary protein cause suppression of appetite through

A

reliance of lipid metabolism and ketone formation.

41
Q

hazards of high protein diet

A

bad for kidney and liver
electrolyte imbalance
lean-tissue loss

42
Q

ketogenic diets emphasize

A

CHO restriction.