Paper 1: Physical factors affecting performance June 2025, Question 22 10 marks
A cyclist is unable to train due to injury.
Describe two effects of reversibility on the cyclist’s muscular system.
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Describe two ways that reversibility will affect the cyclist’s performance in a cycle race.
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A cyclist recovers from injury and completes a 12-week fitness programme.
The table shows resting heart rate, stroke volume and cardiac output before and after the 12-week fitness training programme.
| Before fitness training programme | After fitness training programme | |
| Resting heart rate | 72 beats per minute | 67 beats per minute |
| Resting stroke volume | 69.5 millilitres | 82.1 millilitres |
| Resting cardiac output | 5 litres per minute | 5.5 litres per minute |
Calculate the difference shown in resting stroke volume.
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Calculate the percentage increase in cardiac output as a result of the fitness training programme.
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Describe two long-term effects of a 12-week fitness training programme on the respiratory system.
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Give a practical example from a cycle race of the following:
Aerobic exercise
Anaerobic exercise
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