How does the rate of recovery between energy systems influence substitution strategies in team sports? (5 marks)
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- The ATP-PCr system recovers rapidly, with phosphocreatine stores replenishing within 2-3 minutes, which allows players to regain explosive power quickly.
- This fast recovery enables coaches to rotate players for short periods, knowing they can return to perform at maximum intensity.
- In contrast, the glycolytic system requires much longer recovery as lactic acid must be cleared from muscles.
- This process takes 30-60 minutes for complete removal, meaning players who have worked at high intensity need extended rest.
- As a result, substitutions must be timed to prevent lactic acid build-up that would impair performance upon return.
- The aerobic system recovers based on activity duration, requiring minimal rest for short efforts but longer for extended play.
- Therefore, coaches use rolling substitutions to maintain fresh ATP-PCr stores for crucial moments.
- Strategic rest periods ensure key players avoid glycolytic fatigue during important game phases.
- Consequently, understanding recovery rates helps optimise player rotation and maintain team intensity throughout matches.
Show Worked Solution
Sample Answer
- The ATP-PCr system recovers rapidly, with phosphocreatine stores replenishing within 2-3 minutes, which allows players to regain explosive power quickly.
- This fast recovery enables coaches to rotate players for short periods, knowing they can return to perform at maximum intensity.
- In contrast, the glycolytic system requires much longer recovery as lactic acid must be cleared from muscles.
- This process takes 30-60 minutes for complete removal, meaning players who have worked at high intensity need extended rest.
- As a result, substitutions must be timed to prevent lactic acid build-up that would impair performance upon return.
- The aerobic system recovers based on activity duration, requiring minimal rest for short efforts but longer for extended play.
- Therefore, coaches use rolling substitutions to maintain fresh ATP-PCr stores for crucial moments.
- Strategic rest periods ensure key players avoid glycolytic fatigue during important game phases.
- Consequently, understanding recovery rates helps optimise player rotation and maintain team intensity throughout matches.