Deck 10: Ergogenic Aids and Supplements

Question 1

A calorie represents the amount of heat necessary to raise the temperature of

A) 1 oz water by 1°C
B) 1 g water by 1°C
C) 1 lb water by 1°C
D) 1 pint water by 1°C

Answer 1

B

Question 2

Direct calorimetry involves burning food and measuring the amount of

A) heat liberated
B) oxygen consumed
C) carbohydrate used
D) water produced

Answer 2

A

Question 3

Of the following techniques of measuring energy expenditure, which one requires the most expensive instrumentation?

A) Heart rate monitoring
B) Accelerometer
C) Indirect calorimetry
D) Pedometer

Answer 3

C

Question 4

Which of the following measurement tools is based on the direct detection of bodily movement?

A) Heart rate monitoring
B) Accelerometer
C) Indirect calorimetry
D) Physical activity diary

Question 5

Which of the following techniques is associated with a weakness of not being able to detect accurately how intensely the active is being performed?

A) Combined heart rate and motion monitor
B) Accelerometer
C) Heart rate monitoring
D) Pedometer

Question 6

Respiratory quotient (RQ) or respiratory exchange ratio (RER) is calculated as

A) CO2 produced ´ O2 consumed
B) CO2 produced + O2 consumed
C) O2 consumed ¸ CO2 produced
D) CO2 produced ¸ O2 consumed

Question 7

Which of the following RQ values represents the greatest contribution of carbohydrate metabolism to the total energy production?

A) 0.7
B) 0.8
C) 0.9
D) 1

Question 8

Which of the following RQ values indicates that both carbohydrate and fat contribute equally to the total energy production?

A) 0.75
B) 0.85
C) 0.95
D) 1.05

Question 9

Given that metabolic acidosis can distort the RQ values, measurement of substrate utilization using RQ may not be accurate for a subject who is

A) jogging at a mild intensity
B) doing household activities
C) performing intermittent 800-yard runs
D) resting

Question 10

What will be your prediction as to how RQ changes during the later phase of prolonged exercise when bodily carbohydrate is running out?

A) RQ will increase because there is an increase in fat utilization
B) RQ will decrease because there is an increase in carbohydrate utilization
C) RQ will increase because there is an increase in carbohydrate utilization
D) RQ will decrease because there is an increase in fat utilization