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Cardiorespiratory introducing practice > week 6 > Flashcards

week 6 Flashcards

1
Q

What is physical activity defined as?

A

any bodily movement produced by the contraction of skeletal muscles that results in a substantial increase in caloric requirements over resting energy expenditure

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2
Q

What is physical fitness defined as?

A

a set of attributes that people possess or achieve that relates to the ability to perform physical activity

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3
Q

name some health related components of fitness

A

cardiovascular endurance
muscle strength and endurance
flexibility
body composition

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4
Q

Define exercise

A

a type of exercise that is:
-planned
-structured
-repetitive
-done to improve or maintain one or more components of physical fitness

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5
Q

What is aerobic exercise?

A

Exercise designed to increase cardiovascular fitness
Sustained exercise that uses the aerobic pathways energy supply and training adaptations result in more efficient aerobic pathway

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6
Q

Name some sources of energy for exercise

A

ATP splitting
Creatine phosphate splitting
Anaerobic glycolysis
Aerobic metabolism

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7
Q

What is the equation for ATP splitting?

A

ATP -> ADP + Pi + energy + heat

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8
Q

What is the equation for creatine phosphate splitting?

A

CP + ADP -> C + ATP

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9
Q

What is the equation for anaerobic glycolysis?

A

G/G + Pi + ADP = H+ + lactate + ATP

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10
Q

What is the equation for aerobic metabolism?

A

carbohydrates/free fatty acids/protein + O2 + Pi + ADP= H2O + CO2 + ATP

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11
Q

What is VO2?

A

The volume of oxygen consumed per kg/minute

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12
Q

What is VO2 at rest?

A

300ml/min

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13
Q

What is VO2 with activity?

A

1000ml/min (walking briskly)
3000ml/min (running at 12 km/hour)

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14
Q

What is VO2 max?

A

when increase workload can only occur through anaerobic glycolysis
Thus it is the measure of an individuals aerobic capacity for activity

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15
Q

How does the respiratory system respond to exercise?

A

potential increase from 6L/min to 200L/min
an increase in tidal volume
an increase in respiratory rate
faster delivery of fresh air into lungs
improved diffusion

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16
Q

What is the equation for cardiac output, including stroke volume and heart rate?

A

CO = SV x HR

17
Q

What is cardiac reserve?

A

the ratio between the maximum cardiac output a person can achieve and that at rest

18
Q

What does MAP stand for?

A

mean arterial pressure

19
Q

What does TPR stand for?

A

Total peripheral resistance

20
Q

What is the equation for mean arterial pressure, including cardiac output and total peripheral resistance?

A

MAP + CO x TPR

21
Q

Name some of the benefits of exercising the acutely unwell

A

increase ventilation and perfusion
redistributes ventilation and perfusion
increases circulation
muscle activity
reduces risks of complications
endorphins
functional independence

Cardiorespiratory introducing practice (10 decks)

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