Question: What is the primary energy source for prolonged, moderately high- to high-intensity aerobic exercise?
Answer Choices: A. fatty acids
B. amino acids
C. muscle glycogen
Answer: C. muscle glycogen
Question: Fatigue occurs when there are decreases in:
Answer Choices: A. muscle glycogen
B. blood glucose
C. coenzyme A
D. branched-chain amino acids
Answer: A. muscle glycogen
B. blood glucose
D. branched-chain amino acids
Question: Overtraining can trigger a syndrome in athletes involving:
Answer Choices: A. prolonged periods of insomnia.
B. prolonged periods of overeating.
C. prolonged periods of fatigue.
Answer: C. prolonged periods of fatigue.
Question: What are some of the possible causes of fatigue?
Answer Choices: A. increase in blood sugar
B. dehydration
C. disturbed electrolyte balance
D. muscle glycogen depletion
Answer: B. dehydration
C. disturbed electrolyte balance
D. muscle glycogen depletion
Question: The intensity of an exercise is determined by the Blank______ at which you perform the exercise.
Answer Choices: A. rate
B. tempo
C. location
D. speed
Answer: A. rate
B. tempo
D. speed
Question: Choose the statement that most accurately describes the conclusion of the analysis done on studies that looked at the effects of carbohydrate supplementation on athletic performance.
Answer Choices: A. There was a positive relationship between total exercise time and percent increase in performance, indicating that carbohydrate ingestion was more effective in longer tasks.
B. The mechanism through which carbohydrate improves performance does not change even though intensity and duration may be altered.
C. The type of carbohydrate consumed is important in longer exercise tasks.
Answer: A. There was a positive relationship between total exercise time and percent increase in performance, indicating that carbohydrate ingestion was more effective in longer tasks.
Question: Choose the statement that accurately describes the results of research studies conducted on the effects of carbohydrate supplementation on athletic performance.
Answer Choices: A. Of 13 studies on the effects of carbohydrate mouth rinse on exercise performance lasting less than 1 hour, 10 showed a beneficial effect.
B. Studies with exercise tests lasting more than 120 minutes in duration, 16 of 17 studies showed a performance-enhancing effect.
C. Of 10 studies that assessed the effects of carbohydrate ingestion on exercise tasks lasting less than 1 hour, none showed a performance enhancement.
Answer: A. Of 13 studies on the effects of carbohydrate mouth rinse on exercise performance lasting less than 1 hour, 10 showed a beneficial effect.
B. Studies with exercise tests lasting more than 120 minutes in duration, 16 of 17 studies showed a performance-enhancing effect.
Question: Overreaching that may be used by elite athletes, is a condition:
Answer Choices: A. that is unrelated to chronic fatigue syndrome.
B. of physical and mental stress.
C. that may impair physical performance.
D. that may be a planned phase of training.
Answer: B. of physical and mental stress.
C. that may impair physical performance.
D. that may be a planned phase of training.
Question: What are some of the physiological changes that occur in males and females as a result of endurance training?
Answer Choices: A. using more glucose during low-intensity exercise.
B. an increased maximal capacity to utilize carbohydrates.
C. using more glucose during intense, maximal exercise.
D. an increase in VO₂ max
Answer: B. an increased maximal capacity to utilize carbohydrates.
C. using more glucose during intense, maximal exercise.
D. an increase in VO₂ max
Question: What are the possible causes of chronic fatigue syndrome?
Answer Choices: A. excessive mental stress.
B. overtraining.
C. excessive sleep.
D. viral illness
Answer: A. excessive mental stress.
B. overtraining.
D. viral illness
Question: What is the primary energy source for prolonged, moderately high- to high-intensity aerobic exercise?
Answer Choices: A. fatty acids
B. amino acids
C. muscle glycogen
Answer: C. muscle glycogen
Question: What is the effect of carbohydrate supplementation on high-intensity exercise bouts lasting less than 30 minutes?
Answer Choices: A. improves maximal power
B. improves aerobic work
C. delays dehydration
D. no improvement
Answer: D. no improvement
Question: According to Jeukendrup and Jenkins, what are the limiting factors that can lead to fatigue even with ingested carbohydrates being used during exercise?
Answer Choices: A. The liver may limit the amount of glucose released into the blood.
B. An increase in branched-chain amino acids is the factor.
C. A decrease in core body temperature is the factor.
D. The intestines’ inability to absorb the additional carbohydrate is the factor.
Answer: A. The liver may limit the amount of glucose released into the blood.
D. The intestines’ inability to absorb the additional carbohydrate is the factor.
Question: What is the effect of carbohydrate supplementation on high-intensity exercise bouts lasting less than 30 minutes?
Answer Choices: A. improves maximal power
B. improves aerobic work
C. delays dehydration
D. no improvement
Answer: D. no improvement
Question: Muscle glycogen is the primary energy source for what type of exercise?
Answer Choices: A. strength training
B. prolonged high-intensity aerobic exercise
C. warm-up and cool-down exercise
D. prolonged moderately high-intensity aerobic exercise
Answer: B. prolonged high-intensity aerobic exercise
D. prolonged moderately high-intensity aerobic exercise