Explain how the diaphragm's structure supports efficient movement during a tennis serve. (4 marks)
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Sample Answer
- The diaphragm’s dome-shaped muscle structure enables rapid breathing adjustments during a tennis serve.
- During forceful contractions, the muscle flattens downward, which expands chest cavity volume for increased air intake.
- This increased volume allows more oxygen to enter the lungs, providing fuel for the explosive serve movement.
- The diaphragm attaches firmly to the lower ribs and spine, creating stability during powerful upper body rotation.
- These anchor points prevent breathing disruption while the torso twists during serving.
- As a result, stable attachment maintains breathing efficiency throughout the complex serve motion.
- The structural design therefore supports both rapid oxygen intake and core stability during the serve.
Show Worked Solution
Sample Answer
- The diaphragm’s dome-shaped muscle structure enables rapid breathing adjustments during a tennis serve.
- During forceful contractions, the muscle flattens downward, which expands chest cavity volume for increased air intake.
- This increased volume allows more oxygen to enter the lungs, providing fuel for the explosive serve movement.
- The diaphragm attaches firmly to the lower ribs and spine, creating stability during powerful upper body rotation.
- These anchor points prevent breathing disruption while the torso twists during serving.
- As a result, stable attachment maintains breathing efficiency throughout the complex serve motion.
- The structural design therefore supports both rapid oxygen intake and core stability during the serve.