Question 1

Calculate the power if 600 joules of work are completed in 60 seconds.

Accepted Answer

A)   10 watts
B)   660 watts
C)   36,000 watts
D)   Power cannot be calculated with the information provided.

Question 2

Net efficiency is defined as

Accepted Answer

A)   work output/energy expended at rest times 100.
B)   work performed/energy expended above rest times 100.
C)   work output/energy expended times 100.
D)   energy expended/work output times 100.

Question 3

Direct calorimetry is a means of determining energy expenditure and involves the measurement of

Accepted Answer

A)   oxygen consumption.
B)   heat production.
C)   ATP hydrolysis.
D)   carbon dioxide production. B

Question 4

A kilocalorie is equal to

Accepted Answer

A)   100 calories.
B)   1,000 calories.
C)   4,186 kilojoules.
D)   4.186 joules.

Question 5

One MET equals resting oxygen consumption, which is approximately 5.3 ml.kg-1.min-1.

Accepted Answer

A) True 
 B)False

Question 6

Calculating the work performed on a cycle ergometer requires that you know all of the following except

Accepted Answer

A)   subject's body weight.
B)   resistance against flywheel.
C)   pedaling speed.
D)   exercise time.

Question 7

The most common technique used to measure oxygen consumption in exercise physiology laboratories is

Accepted Answer

A)   closed-circuit spirometry.
B)   open-circuit spirometry.
C)   direct calorimetry.
D)   computer calorimetry.

Question 8

Power is defined as

Accepted Answer

A)   the ability to perform work.
B)   work divided by time.
C)   work times force.
D)   force times distance.

Question 9

The SI units used to describe power are

Accepted Answer

A)   Newtons.
B)   joules.
C)   watts.
D)   joules per second. C

Question 10

The SI unit used for both work and energy is the joule.

Accepted Answer

A) True 
 B)False

Question 11

Work is defined as

Accepted Answer

A)   the ability to transform energy from one state to another.
B)   the ability to utilize oxygen.
C)   force times distance.
D)   distance times power output.

Question 12

Recent evidence suggests that the optimum speed of movement

Accepted Answer

A)   increases as the power output increases.
B)   decreases as the power output increases.
C)   remains constant as the power output increases.
D)   increases as the power output decreases.

Question 13

A runner who exhibits poor running economy would require

Accepted Answer

A)   a lower VO2 at any given running speed compared to an economical runner.
B)   a higher VO2 at any given running speed compared to an economical runner.
C)   the same VO2 at any given running speed compared to an economical runner.

Question 14

Exercise efficiency is greater in subjects who

Accepted Answer

A)   have a higher percentage of fast muscle fibers.
B)   have a higher percentage of slow muscle fibers.
C)   have 50% fast fibers and 50% slow fibers.

Question 15

The energy cost of horizontal running can be estimated reasonably accurately because

Accepted Answer

A)   the VO2 of running is always the same.
B)   the VO2 of horizontal running is always 1 MET.
C)   the VO2 increases linearly with running speed.
D)   none of the above. C

Question 16

Net efficiency ______________ as work rate increases.

Accepted Answer

A)   increases
B)   does not change
C)   decreases

Question 17

Work equals power divided by time.

Accepted Answer

A) True 
 B)False

Question 18

The SI unit for work is the

Accepted Answer

A)   joule.
B)   watt.
C)   kpm.
D)   kcal.

Question 19

A subject performing a 10-MET activity would have an oxygen consumption of approximately

Accepted Answer

A)   10 ml.kg-1.min-1.
B)   25 ml.kg-1.min-1.
C)   35 ml.kg-1.min-1.
D)   45 ml.kg-1.min-1.

Question 20

A MET is defined as a metabolic equivalent and is equal to

Accepted Answer

A)   resting VO2.
B)   50% of resting VO2.
C)   200% of resting VO2.
D)   VO2 max.

Exam 2: Common Measurements in Exercise Physiology

Calculate the power if 600 joules of work are completed in 60 seconds.

Correct AnswerverifiedShow Answer

Net efficiency is defined as

Correct AnswerverifiedShow Answer

Direct calorimetry is a means of determining energy expenditure and involves the measurement of

Correct AnswerverifiedB

A kilocalorie is equal to

Correct AnswerverifiedShow Answer

One MET equals resting oxygen consumption, which is approximately 5.3 ml.kg-1.min-1.

Correct AnswerverifiedShow Answer

Calculating the work performed on a cycle ergometer requires that you know all of the following except

Correct AnswerverifiedShow Answer

The most common technique used to measure oxygen consumption in exercise physiology laboratories is

Correct AnswerverifiedShow Answer

Power is defined as

Correct AnswerverifiedShow Answer

The SI units used to describe power are

Correct AnswerverifiedC

The SI unit used for both work and energy is the joule.

Correct AnswerverifiedShow Answer

Work is defined as

Correct AnswerverifiedShow Answer

Recent evidence suggests that the optimum speed of movement

Correct AnswerverifiedShow Answer

A runner who exhibits poor running economy would require

Correct AnswerverifiedShow Answer

Exercise efficiency is greater in subjects who

Correct AnswerverifiedShow Answer

The energy cost of horizontal running can be estimated reasonably accurately because

Correct AnswerverifiedC

Net efficiency ______________ as work rate increases.

Correct AnswerverifiedShow Answer

Work equals power divided by time.

Correct AnswerverifiedShow Answer

The SI unit for work is the

Correct AnswerverifiedShow Answer

A subject performing a 10-MET activity would have an oxygen consumption of approximately

Correct AnswerverifiedShow Answer

A MET is defined as a metabolic equivalent and is equal to

Correct AnswerverifiedShow Answer

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B

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One MET equals resting oxygen consumption, which is approximately 5.3 ml.kg^-1.min^-1.

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C

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C

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