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720: Exercise Physiology & Nutrition > Exercise > Flashcards

Exercise Flashcards

1
Q

1 mole of glucose = __ grams of carbohydates = __ kcal

A

180
(x4)
720

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2
Q

1 mole of glucose = __ grams of fat = __ kcal

A

280
(x9)
2,520

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3
Q

How many milliliters of air does the normal resting individual need per minute?

A

5000 mL

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4
Q

What is the average respiration rate?

A

10 breaths per minute

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5
Q

What is the normal tidal volume?

A

500 mL/breath

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6
Q

What percentage of the air we inhale contains oxygen?

A

20%

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7
Q

Given these values calculate the amount of oxygen we inspire per minute

A

5000 (mL of air/min) x 0.20 (percentage of oxygen inspired) =

1000 mL of oxygen per minute

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8
Q

Now that we know we inspire 1000 mL of oxygen per minute how many mL of oxygen do we inspire per breath?

A

1000 (mL of oxygen per minute) / 10 (respiration rate) =

100 mL of oxygen per breath

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9
Q

What percentage of expired air during rest is oxygen?

A

16%

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10
Q

So…how many mL of oxygen is expired during rest?

A

5000 (mL of air/min) x 0.16 (percentage of oxygen expired) =

800 mL

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11
Q

Based on the calculations that we inspire 1000 mL of oxygen per minute and expire 800 mL of oxygen per minute. We can conclude that we use __mL of oxygen during rest

A

200 mL

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12
Q

What is another/easier way to calculate the amount of oxygen we use during rest?

A

METs

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13
Q

What does 1 MET (equivalent of rest) equal?

A

3.4 mL of O2/kg/min

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14
Q

Stair climbing requires __ METs

Curling a 1lb DB requires __ METs

A
  1. 5

1. 5

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15
Q

What is normal cardiac output?

A

5,000 mL

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16
Q

How is cardiac output calculated?

A

CO = SV x HR

17
Q

During exercise cardiac output, stroke volume, and heart rate all _____.

A

increase

18
Q

What is the approximate maximum SV?

A

100-110

19
Q

What happens when HR gets too high?

A

Stroke volume will continue to increase until it reaches its maximum, then it will have to decrease in order to account for the increasing HR

20
Q

What does RPE stand for?

A

Ratio of Perceived Exertion

21
Q

Normal RPE ranges from __-__.

Explain why…

A

6-20

To account for HR which usually ranges from 60 at rest to 200 during maximal exercise

22
Q

__% of energy during rest comes from fat, the remaining __% comes from carbohydrates

A

60%

40%

23
Q

As METs increase what happens to this 60:40 ratio?

A

The percentage of fat usage decreases whereas the percentage of carb usage increases

24
Q

What is the fat to carb ratio during walking? Jogging

A

50: 50
40: 60

720: Exercise Physiology & Nutrition (14 decks)

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