Describe the potential effects of caffeine on an athlete's performance. (4 marks)
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Positive Effects
- Enhanced Mental Function: Caffeine stimulates the central nervous system. This improves concentration, alertness and decision-making during competition.
- Increased Endurance: Caffeine mobilises fat stores for energy use. This delays glycogen depletion, allowing athletes to sustain effort for longer periods.
Negative Effects
- Overstimulation: Excessive caffeine consumption causes nervousness and tremors. This impairs fine motor control required in precision sports like archery or gymnastics.
- Dehydration Risk: Caffeine acts as a diuretic, increasing fluid loss. This can lead to reduced performance in endurance events if hydration is inadequate.
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Positive Effects
- Enhanced Mental Function: Caffeine stimulates the central nervous system. This improves concentration, alertness and decision-making during competition.
- Increased Endurance: Caffeine mobilises fat stores for energy use. This delays glycogen depletion, allowing athletes to sustain effort for longer periods.
Negative Effects
- Overstimulation: Excessive caffeine consumption causes nervousness and tremors. This impairs fine motor control required in precision sports like archery or gymnastics.
- Dehydration Risk: Caffeine acts as a diuretic, increasing fluid loss. This can lead to reduced performance in endurance events if hydration is inadequate.