Part 1 Flashcards

1
Q

What are the key features of O2?`

A

Abundance and Electronegativity

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2
Q

How is biocomplexity linked with atmospheric oxygen?

A

Increases in atmospheric oxygen is associated with an increase in organism complexity

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3
Q

Polar Gigantism

A

Trend of animals to be larger at higher latitudes and smaller at higher altitudes and there is a correlation between maximum body length and oxygen content (Benthic amphipod crustaceans)

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4
Q

Insect Gigantism

A

Rise and fall in atmospheric oxygen coincide with the rise and fall of the size of insects

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5
Q

Oxygen In corporation into Membrane Proteins

A

Eukaryotic cells with compartments

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6
Q

Romer’s Gap

A

15-million year decline in vertebrate colonization (fossil records)

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7
Q

Climate Change

A

Warming - increases oxygen metabolism and decreases it’s solubility in water

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8
Q

What is the aetiology of complex diseases closely associated with?

A

Oxygen Metabolism

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9
Q

VO2 Max (Maximal oxygen uptake)

A

Maximal rate of oxygen utilization by exercising muscles

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10
Q

How is VO2 Max measured?

A

Exercise stress test

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11
Q

Why do you test for VO2 max?

A

Assess physical fitness, diagnosing and assessing IHD, developing an exercise prescription, and identify patients who may have difficulty performing various functional tasks.

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12
Q

What is VO2 max associated with?

A

Muscle strength

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13
Q

T or F : VO2 increases with age

A

F - it decreases with age, about 1% per year after 30 years

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14
Q

What are determinants of endurance performance

A

VO2max, Capillary density, Level of aerobic enzymes, mitochondrial size and number, muscle fibre type

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15
Q

What does VO2 max represent?

A

A fundamental measure of physiologic functional capacity for exercise

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16
Q

Maximal oxygen consumption tests

A

Treadmill, running, walking, swimming, rowing, skating

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17
Q

How long do consumption tests usually last?

A

3-5 minutes supramaximal effort or progressive increments of effort - termination of test influenced by motivational factors that do not necessarily reflect physiological strain

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18
Q

How many types of VO2max tests protocols are there?

A

2 - Continuous and Discontinuous

19
Q

Continuous

A

Progressively increasing exercise increments with recovery or rest intervals

20
Q

Continuous part 2

A

also provides a practical test of aerobic capacity for most healthy individuals - 8-10 min

21
Q

Discontinuous

A

Progressively increasing exercise increments interspersed with recovery intervals - 65 min

22
Q

What are factors that affect maximal oxygen consumption?

A

Mode of exercise
Heredity
State of training
Gender
Body size
Age

23
Q

Intensity vs MET value

A

1.1-2.9 = Light
3.0-5.9 = Moderate
Greater than 8 = Vigorous

24
Q

Calculating MET-Minutes/Week

A

30 min x 5 MET = 150 MET minutes
150 MET minutes per day x 5 days per week = 750 MET minutes per week ^-1

25
Q

Sedentary Behaviour (movement)

A

Any waking behaviour that is characterized by an energy expenditure less than 1.5 metabolic equivalents and a sitting or reclining posture

26
Q

Physical Activity

A

Any bodily movement produced by skeletal muscles that result in an energy expenditure above the resting level (over 1.6 metabolic units)

27
Q

Physical Inactivity

A

Absence of physical activity or exercise that fails to meet the standard recommendations for health

28
Q

Physical Activity vs Exercise

A

PA: Any movement carried out throughout the dat
E: A specific prescribed physical activity designed for enhancement in a specific physical or mental health parameter

29
Q

Laboratory vs Field

A

L: Controlled
F: Uncontrolled

30
Q

What are the types of quantitative research?

A

Descriptive, Correlational, and Experimental

31
Q

Descriptive Research

A

Describe different phenomenon but not how and why

32
Q

Correlational Research

A

Relationship between variables

33
Q

Experimental Research

A

Majority of studies in exercise science are experimental

34
Q

Independent Variables

A

Held constant and define contact and conditions of experiment

35
Q

Dependent Variables

A

Measurements responding to changes in the independent variables

36
Q

Activity Recommendations

A

30 min moderate to vigorous activity (WHO)

37
Q

Canadian Society for Exercise Physiology

A

150 min of moderate intensity activity/week
90 min of vigorous activity per week
Resistance 2 days per week
Flexibility exercise 4-7 days per week

38
Q

Heart and Stroke

A

10,000 Steps a day

39
Q

ACSM

A

150 min moderate activity per week

40
Q

Paradigm

A

A system of beliefs, ideas, values, and habits that is a way of thinking about the real world

41
Q

Bus Driver vs Heart Conductor

A

Drivers - 2 x more likely to get CV disease
Drivers - < 50 yrs, 4 x greater incidence of sudden cardiac death
Drivers – increased adiposity and higher serum lipids

42
Q

True or False:
Men in physically active jobs have a lower incidence and severity of CHD than those in inactive jobs.

A

True

43
Q

Harvard Alumni Study

A

Examined the lifestyle and exercise habits of ~13,485 men (Harvard Alumni).
Reduced death risk for participation in regular exercise (walking, stair climbing,
sports/recreational activity)
< 4 METs no effect
4 – 6 METs somewhat beneficial
> 6 METS lower mortality rates