Explain the immediate changes to lactate levels that occur during high-intensity sprint training. (4 marks)
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Sample Answer
- At the onset of high-intensity sprint training, lactate levels begin to rise rapidly as the body uses the lactic acid energy system for immediate energy production.
- During sprinting, the body produces lactate faster than it can remove it, causing lactate to build up in the blood and muscles.
- As lactate accumulates during repeated sprints, it leads to increased acidity in the muscles, affecting performance and contributing to fatigue.
- Between sprint intervals, lactate levels may slightly decrease during recovery periods but generally continue to rise throughout the training session.
- Immediately after the training session, lactate levels remain high before gradually returning to normal during the recovery period.
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Sample Answer
- At the onset of high-intensity sprint training, lactate levels begin to rise rapidly as the body uses the lactic acid energy system for immediate energy production.
- During sprinting, the body produces lactate faster than it can remove it, causing lactate to build up in the blood and muscles.
- As lactate accumulates during repeated sprints, it leads to increased acidity in the muscles, affecting performance and contributing to fatigue.
- Between sprint intervals, lactate levels may slightly decrease during recovery periods but generally continue to rise throughout the training session.
- Immediately after the training session, lactate levels remain high before gradually returning to normal during the recovery period.