SmarterEd

Aussie Maths & Science Teachers: Save your time with SmarterEd

HMS, TIP 2020 HSC 13 MC

An endurance athlete might consider using caffeine supplementation to improve performance because caffeine

  1. relaxes the muscles to improve recovery time.
  2. increases the amount of creatine stored in muscles.
  3. promotes growth, repair and maintenance of muscle tissue.
  4. reduces the perception of fatigue and may promote glycogen sparing.
Show Answers Only

\(D\)

Show Worked Solution
  • D is correct: Caffeine stimulates the central nervous system, reducing the perception of fatigue and effort. It may also increase fat use during exercise, sparing glycogen stores for later in an endurance event.

Other Options:

  • A is incorrect: Caffeine is a stimulant and does not relax muscles or speed recovery.
  • B is incorrect: Increasing muscle creatine stores is the effect of creatine supplementation, not caffeine.
  • C is incorrect: Growth, repair and maintenance of muscle tissue is the role of protein, not caffeine.