In this blog you will find the correct answer of the Coursera quiz Science of Exercise Coursera Week 3 Quiz mixsaver always try to brings best blogs and best coupon codes
 

Week 3 Quiz

 

1. The main components of a sound endurance training program include all but one of the following:

 

  • The exercise frequency
  • The exercise duration
  • The exercise time of day
  • The exercise intensity

2. The term “muscle plasticity” (select all that apply):

 

  • Refers to the capacity for adaptive change
  • Is characterized by altered gene expression following a repeated stimulus
  • Applies to all types of muscle proteins

3. Which is false regarding adaptations to endurance training?

 

  • It will increase maximal heart rate
  • It will increase maximal stroke volume
  • It will increase maximal (a-v)O2 difference
  • None of the above

4. Which is true regarding detraining:

 

  • Maximal stroke volume decreases the fastest
  • Mitochondrial numbers decrease the fastest
  • Maximal heart rate decreases the fastest
  • VO2max decreases the fastest

5. To maximize muscle mass and strength gains from a resistance training program one should:

 

  • Perform many repetitions per set at a low percentage of their 1-Repetiton maximum
  • Perform fewer repetitions per set at a low percentage of their 1-Repetiton maximum
  • Perform many repetitions per set at a high percentage of their 1-Repetiton maximum
  • Perform fewer repetitions per set at a high percentage of their 1-Repetiton maximum

6. Increases in strength associated with a resistance training program are:

 

  • Initially due to muscle hypertrophy followed by neural adaptations weeks later
  • Initially due to both muscle hypertrophy and neural adaptations
  • Initially due to neural adaptations followed by muscle hypertrophy weeks later
  • None of the above

7. For the endurance athlete the best time to replenish muscle glycogen stores would be:

 

  • Within the first 2-hours after exercising when insulin sensitivity is high
  • Within the first 12-hours after exercising when insulin sensitivity is high
  • Within the first 2-hours after exercising when insulin sensitivity is low
  • Within the first 12-hours after exercising when insulin sensitivity is low

8. Dehydration can negatively impact performance by all but one of the following mechanisms:

 

  • A decrease in plasma volume
  • A decrease in stroke volume
  • A decrease in heart rate
  • A decrease in cardiac output

9. Likely causes for fatigue during short-term high-intensity exercise are:

 

  • A depletion of ATP, creatine phosphate and hydrogen ions
  • A depletion of ATP and an accumulation of creatine phosphate and hydrogen ions
  • A depletion of creatine phosphate and an accumulation of ATP and hydrogen ions
  • A depletion of ATP and creatine phosphate and an accumulation of hydrogen ions

10. Likely causes for fatigue during long-term lower-intensity exercise are:

 

  • A depletion of muscle glycogen & calcium and an increase in body temperature
  • A depletion of creatine phosphate and an accumulation of hydrogen ions
  • A depletion of muscle glycogen & calcium and a decrease in body temperature
  • A depletion of muscle glycogen and an increase in muscle calcium

11. The main cause for delayed onset muscle soreness is:

 

  • Isometric muscle contractions
  • Concentric muscle contractions
  • Eccentric muscle contractions
  • All of the above

12. The main cause for immediate muscle soreness experienced during exercise is:

 

  • Isometric muscle contractions
  • Concentric muscle contractions
  • Eccentric muscle contractions
  • All of the above

13. Which is true regarding anabolic steroids:

 

  • They have few side effects
  • They are similar in structure to testosterone
  • They are administered by injection only
  • They are not as effective as the human growth hormone for increasing muscle mass

14. Which athlete would benefit the most from blood doping:

 

  • A body builder
  • A gymnast
  • A sprinter
  • A 10K runner

15. Which is not a mechanism whereby caffeine may improve exercise performance:

 

  • Increase mental alertness
  • Increase creatine phosphate stores
  • Increase fat mobilization
  • Increase time to exhaustion

 

 

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