3. energy balance and body weight Flashcards

1
Q

can be defined as the quantity of work a particular system can
perform.

A

Energy

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2
Q

energy is classified as either?

A

potential - stored energy, energy waiting to happen
kinetic - is energy in motion

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3
Q

unit of measurement that defines
the energy contained in a energy
yielding nutrient

A

calorie

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4
Q

is the amount of energy in
the form of heat

A

calorie

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5
Q

is the amount of heat
generated by a particular macronutrient

A

kilocalorie

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6
Q

energy from macronutrients

carbs
protein
fat
alcohol

A

4
4
9
7

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7
Q

A nutrient’s metabolic path is
dependent upon

A

energy balance

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8
Q

In a positive energy balance the?

A

excess nutrient
energy will be stored or used to grow

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9
Q

In negative energy balance you?

A

aren’t taking in
enough energy to meet your needs, so your body
will need to use its stores to provide energy.

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10
Q

a standardized mathematical prediction
of a person’s daily energy needs in kilocalories per
day required to maintain weight.

A

estimating energy requirement

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11
Q

The sum of caloric expenditure

A

total energy expenditure

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12
Q

TEE is dependent on?

A

age, sex, height, weight, and physical activity level

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13
Q

refers to those metabolic
pathways necessary to support and maintain
the body’s basic functions while at rest

A

basal metabolism

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14
Q

is the amount
of energy required by the body to conduct its
basic functions over a certain time period.

A

basal metabolic rate

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15
Q

The great majority of energy expended daily is from conducting life’s basic
processes.

A

between 50 - 70%

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16
Q

BMR is dependent on

A

body size, age, sex, body composition, nutritional status and genetics

17
Q

t or f: muscle tissue burns more calories than fat tissues while at rest

A

t

18
Q

BMR of
liver
brain
heart
kidneys
skeletal muscle (at rest)
other organs

A

27
19
7
10
18
19

19
Q

the amount of calories
burned by the human body in one day adjusted to
the amount of activity (sedentary, moderate or
strenous)

A

total energy expenditure

20
Q

The energy required for all the
enzymatic reactions that take place
during food digestion and absorption
of nutrients

A

thermic effect on food

21
Q

thermic effect on food accounts

A

10% of total energy expended per day

22
Q

fat tissue produces what hormone that balance the positive energy in the body

A

leptin

23
Q

what part of the brain senses if nutrient levels in the blood decreases, and when they are high the satiety center is stimulated

A

hypothalamus

24
Q

factors affecting energy intake

A

hunger
satiety
fat tissue
genetic influence
psychological/behavioral influences
societal influences

25
Q

Indicator of the appropriateness of a person’s
weight (lbs) for their height (in)

A

BMI

26
Q

the optimal weight recommended for optimal
health

A

ideal body weight

27
Q

calculated using height and weight measurements

A

BMI body mass index

28
Q

Ranges of Healthy % of Body Fat

females ages:
20-39
40-59
60-79

male ages
20-39
40-59
60-79

A

female ages:
21-33 %
23-24%
24-36%

male ages
8-20%
11-22%
13-25%

29
Q

Fat deposited in the abdominal cavity is called ___ and it is a better predictor of disease risk than total fat mass

A

visceral fat

30
Q

“apple-shaped” bodies

A

carry more weight around the waist. have greater risk of chronic disease

31
Q

“pear shaped” bodies

A

carry more weight around the hips

32
Q

a disorder in which the irrational fear of becoming
obese results in severe weight loss from self-impose d starvation

A

anorexia nervosa

33
Q

Health consequences of anorexia nervosa

A

malnutrition and starvation

females stop menstruating

may develop heart problems, irreg heartbeat that can lead to cardiac arrest and sudden death

34
Q

a disorder in which some form of purging or
clearing of the digestive tract follows cycles of
overeating

A

bulimia nervosa

35
Q

common symptoms of bulimia nervosa

A

eating a significant amount of food in a limited time
guilt after eating
purging of food after eating
use of diet pills or diuretics
excessive exercise to prevent weight gain

36
Q

a disorder characterized by compulsive overeating,
consume huge amounts of food at one time but do
not try to purge

A

binge eating disorder

37
Q

This disorder may signal the use of food as a coping
mechanism for strong emotions or depression

A

binge eating disorder

38
Q

health consequence of binge eating

A

may result in type 2 diabetes, heart disease and stroke