Deck 21: Laboratory Assessment of Human Performance

Question 1

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.

Answer 1

A

Question 2

Both the lactate threshold and the measurement of critical power have been used to predict performance in endurance events.Studies reveal that,from an exercise intensity viewpoint,critical power measurements represent an exercise intensity_____________.

A)30% below the lactate threshold.
B)above the lactate threshold.
C)equal to the lactate threshold.
D)10% below the lactate threshold.

Answer 2

B

Question 3

Performance of a one-repetition maximum (1RM)test to determine muscular strength is an example of a(n)_______________ strength test.

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

Answer 3

B

Question 4

VO₂ max is an excellent predictor of performance in endurance events for trained runners.

Question 5

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 $\bullet$ L^-1
D)plateau in VO₂ with increasing work rate

Question 6

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.
D)force a muscle generates during lengthening contractions ONLY.

Question 7

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 8

Which of the following performance tests is a good test of anaerobic,glycolytic power?

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

Question 9

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

Question 10

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

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

Question 11

The vertical jump power test has been used to evaluate explosive anaerobic power.This test is valuable in predicting performance in______________.

A)running 40 yards
B)running 100 yards (or meters)
C)sports requiring vertical leaping ability
D)All of the above answers are correct

Question 12

Many investigators argue that the following measurement is the single best predictor of success in endurance events.

A)Critical power
B)Lactate threshold
C)Wingate power test
D)VO₂ max

Question 13

Which of the following is a method to estimate 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

Question 14

Which of the following laboratory tests would provide the LEAST important information about performance potential in a long endurance event (e.g. ,a marathon)?

A)test to measure maximal oxygen uptake
B)Wingate test
C)test to measure lactate threshold
D)test to measure exercise economy

Question 15

Which of the following components of performance testing are NOT important to consider when designing a laboratory test to evaluate sport performance?

A)The testing protocol should be relevant to the sport and sport specific.
B)The test should be valid.
C)The test must be reliable.
D)Follow-up testing should be avoided.

Question 16

Which of the following statements about Laboratory (physiological)testing is NOT true?

A)Laboratory testing can often provide valuable feedback about the effectiveness of exercise training programs.
B)Laboratory testing is a powerful tool to identify future Olympic champions.
C)Laboratory testing can be used an educational tool for the athlete to learn about exercise physiology.
D)Laboratory testing can provide an athlete information about their strengths and weaknesses.

Question 17

Exercise scientists often use data from laboratory tests to predict performance in a variety of sports.Which of the following measurements (or performance tests)are required to predict a performance time for a 10,000 meter race?

A)Wingate power test and measurement of running economy
B)lactate threshold and VO₂ max
C)critical power and VO₂ max
D)lactate threshold and measurement of running economy

Question 18

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 19

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.

Question 20

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

Question 21

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