Compare the heart rate responses to aerobic and anaerobic training. (4 marks)
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Aerobic training
- HR increases steadily and is maintained at a moderate level (approximately 60-80% of maximum heart rate).
- For example, during a 30-minute jog, heart rate may increase to 140-160 bpm and remain relatively stable.
- HR can be sustained at moderate levels for extended periods as the body can continuously supply oxygen to meet energy demands.
Anaerobic training
- HR increases rapidly to near-maximum levels (approximately 80-95% of maximum heart rate).
- For example, during sprint intervals, heart rate may quickly rise to 170-190 bpm.
- As HR quickly reach near-maximal levels they can only be maintained briefly as oxygen demand exceeds supply, causing rapid fatigue.
Recovery heart rate
- After aerobic training HR typically returns to normal more quickly than after intense anaerobic training.
- HR during aerobic training is more sustainable for longer periods, whereas anaerobic training can only be maintained for shorter durations due to rapid fatigue and oxygen debt.
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Sample Answer
Aerobic training
- HR increases steadily and is maintained at a moderate level (approximately 60-80% of maximum heart rate).
- For example, during a 30-minute jog, heart rate may increase to 140-160 bpm and remain relatively stable.
- HR can be sustained at moderate levels for extended periods as the body can continuously supply oxygen to meet energy demands.
Anaerobic training
- HR increases rapidly to near-maximum levels (approximately 80-95% of maximum heart rate).
- For example, during sprint intervals, heart rate may quickly rise to 170-190 bpm.
- As HR quickly reach near-maximal levels they can only be maintained briefly as oxygen demand exceeds supply, causing rapid fatigue.
Recovery heart rate
- After aerobic training HR typically returns to normal more quickly than after intense anaerobic training.
- HR during aerobic training is more sustainable for longer periods, whereas anaerobic training can only be maintained for shorter durations due to rapid fatigue and oxygen debt.