Question 1

Which of the following is what trained athletes are able to do to better budget their fuels during prolonged endurance exercise?

Accepted Answer

A)   Use more protein to spare carbohydrate
B)   Use more carbohydrate to spare fat
C)   Use more fat to spare carbohydrate
D)   Use more protein to spare fat C

Question 2

Energy from the intramuscular high-energy phosphates (i.e., ATP and CP) can sustain all-out exercise for

Accepted Answer

A)   ~10 seconds
B)   2-3 minutes
C)   20 minutes
D)   1 hour A

Question 3

The main energy fuel during heavy exercise such as competitive running is

Accepted Answer

A)   carbohydrate
B)   lipid
C)   protein
D)   sodium A

Question 4

What is the predominant energy system used for a 10-km run?

Accepted Answer

A)   ATP-CP
B)   Anaerobic glycolysis
C)   Aerobic system

Question 5

In which of the following circumstances will protein be most likely used as an energy fuel?

Accepted Answer

A)   Immediately following a meal
B)   During brisk walking
C)   After 24 hours of starvation
D)   During time between regular meals

Question 6

What is the predominant energy system used for an 800-m run?

Accepted Answer