Deck 20: Laboratory Assessment of Human Performance

Question 1

The concept of critical power is based on the notion that athletes

A) cannot work below the lactate threshold for extended periods.
B) can maintain a specific submaximal power output without fatigue.
C) can work at 90% of VO₂ max without fatigue.
D) can sustain maximal intensity exercise for only one minute.

Answer 1

B

Question 2

An isokinetic dynamometer monitors the

A) force a muscle generates at a constant speed.
B) speed a muscle generates at a constant force.
C) force a muscle generates against an unmovable resistance.

Answer 2

A

Question 3

Which of the following is an alternate method of determining the lactate threshold?

A) the work rate at which the R exceeds 1.00
B) the work rate at which HR exceeds 85% predicted HR max
C) the work rate at which maximal running velocity occurs
D) the work rate at which the ventilatory threshold occurs

Answer 3

D

Question 4

A handgrip dynamometer is an easy method of assessing ______________ strength.

A) isometric
B) dynamic
C) isotonic
D) isokinetic

Question 5

Performance of a one-repetition maximum test to determine muscular strength is an example of a(n) _______________ strength test.

A) isokinetic
B) dynamic
C) isometric
D) isolateral

Question 6

Which of the following is not among the criteria used to determine if a VO₂ max test is valid?

A) HR within 10 beats per minute of predicted HR max
B) respiratory exchange ratio >1.00
C) blood lactate concentration >8 m moles.L^-1
D) plateau in VO₂ with increasing work rate

Question 7

VO₂ max is the best predictor of performance in endurance events for trained runners.

Question 8

The vertical jump test uses the ATP-PC system, so it is considered a good predictor of success in running a short (40-100 yards) dash.

Question 9

Lactate threshold can be used to predict the estimated finish time in a race.

Question 10

Which of the following would be a good test of glycolytic power?

A) vertical leap test
B) Wingate test
C) one-repetition maximum test
D) VO₂ max test

Question 11

Which of the following factors would likely be least important to perform in an endurance event (e.g., a marathon)?

A) aerobic energy output
B) anaerobic energy output
C) environment
D) coordination and economy

Question 12

Measurement of the highest VO₂ obtained during an incremental arm ergometer test is often called

A) VO₂ max.
B) peak VO_2.
C) maximal aerobic power.
D) VO₂ arm.

Question 13

Peak running velocity is defined as the highest running speed that can be maintained for

A) 5 seconds.
B) 30 seconds.
C) 60 seconds.
D) 5 minutes.

Question 14

A more economical runner will have a higher VO₂ at a given speed than with an uneconomical runner.

Question 15

Measurement of the lactate threshold has been used to estimate maximal

A) aerobic power.
B) steady-state running speed.
C) performance in events lasting less than 60 seconds.
D) power of the ATP-PC system.

Question 16

Which of the following is not a benefit of physiological testing for athletes?

A) provides information about strengths and weaknesses
B) educates the subject about the physiology of exercise
C) provides feedback about effectiveness of training program
D) All of the above are benefits of physiological testing.

Question 17

Which of the following factors is important to consider when designing a laboratory test to evaluate sport performance?

A) The testing protocol should be standardized.
B) One test should be used for all athletes and sports.
C) To avoid fatigue, tests should not use the major muscle groups required for performance.
D) Follow-up testing should be avoided.

Question 18

Measurement of VO₂ max can be performed using either the arms or the legs.