Evaluate the interrelationship between the peripheral nervous system and other body systems in enabling efficient movement during an endurance cycling event. (8 marks)
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Sample Answer
Judgment Statement
- The PNS interrelationships prove highly effective for endurance cycling performance.
- They strongly meet the criteria for movement coordination and adequately meet energy efficiency requirements.
Movement Coordination
- The PNS-muscular system connection strongly meets coordination needs by sending signals to leg muscles continuously.
- Feedback about muscle position helps cyclists keep a smooth pedalling rhythm and adjust their power.
- The PNS-skeletal system partnership works excellently by telling the brain where joints are positioned, helping riders maintain good cycling posture.
- These relationships work so well that cyclists can pedal efficiently for hours without conscious thought.
- However, coordination begins to deteriorate when riders become fatigued because nerve signals don’t travel efficiently during ultra-long rides.
Energy Efficiency
- The PNS-heart and blood vessel connection adequately supports energy use by controlling heart rate and adjusting blood vessel dilation.
- Oxygen delivery improves but cannot fully prevent fatigue over very long distances.
- The PNS-respiratory connection partly meets efficiency needs by changing breathing rate, though riders sometimes need to control their breathing manually on steep hills.
- Temperature control through the PNS-skin connection works well to prevent overheating by starting sweating and changing blood flow to the skin.
- The PNS correctly slows down digestion to send more blood to leg muscles, though this can cause stomach upset in very long events.
Final Evaluation
- The PNS interrelationships highly effectively enable endurance cycling through excellent movement coordination and adequate energy management.
- While coordination aspects strongly support performance, energy efficiency shows some limitations during extreme efforts.
- Overall, these integrated systems successfully maintain cycling efficiency because the PNS coordinates multiple body responses simultaneously.
- Cyclists must supplement these automatic responses with proper nutrition and pacing strategies for optimal performance.
Show Worked Solution
Sample Answer
Judgment Statement
- The PNS interrelationships prove highly effective for endurance cycling performance.
- They strongly meet the criteria for movement coordination and adequately meet energy efficiency requirements.
Movement Coordination
- The PNS-muscular system connection strongly meets coordination needs by sending signals to leg muscles continuously.
- Feedback about muscle position helps cyclists keep a smooth pedalling rhythm and adjust their power.
- The PNS-skeletal system partnership works excellently by telling the brain where joints are positioned, helping riders maintain good cycling posture.
- These relationships work so well that cyclists can pedal efficiently for hours without conscious thought.
- However, coordination begins to deteriorate when riders become fatigued because nerve signals don’t travel efficiently during ultra-long rides.
Energy Efficiency
- The PNS-heart and blood vessel connection adequately supports energy use by controlling heart rate and adjusting blood vessel dilation.
- Oxygen delivery improves but cannot fully prevent fatigue over very long distances.
- The PNS-respiratory connection partly meets efficiency needs by changing breathing rate, though riders sometimes need to control their breathing manually on steep hills.
- Temperature control through the PNS-skin connection works well to prevent overheating by starting sweating and changing blood flow to the skin.
- The PNS correctly slows down digestion to send more blood to leg muscles, though this can cause stomach upset in very long events.
Final Evaluation
- The PNS interrelationships highly effectively enable endurance cycling through excellent movement coordination and adequate energy management.
- While coordination aspects strongly support performance, energy efficiency shows some limitations during extreme efforts.
- Overall, these integrated systems successfully maintain cycling efficiency because the PNS coordinates multiple body responses simultaneously.
- Cyclists must supplement these automatic responses with proper nutrition and pacing strategies for optimal performance.