Evaluate the interrelationship between body systems during movement and justify when first aid intervention is required. (12 marks)
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Sample Answer
System Interrelationships:
- Nervous system initiates movement patterns through motor unit recruitment and coordinates timing through proprioceptive feedback
- Muscular system generates force through concentric, eccentric and isometric contractions responding to neural signals
- Skeletal system provides leverage points and joint articulation while protecting vital organs during movement
- Circulatory system increases blood flow to active muscles and removes metabolic waste products
- Respiratory system elevates breathing rate and depth to maintain oxygen delivery and CO2 removal
Movement Coordination:
- Systems work simultaneously – e.g., quadriceps contraction requires nerve signals, blood supply, oxygen delivery and skeletal stability
- Feedback loops maintain efficiency through proprioception and metabolic monitors
- Compensation occurs if one system fails – e.g., other muscle groups activate to maintain posture if primary movers fatigue
- Energy systems support continued function through ATP-PC, lactic acid and aerobic pathways
First Aid Assessment:
- Primary survey assesses DRSABCD with focus on circulation and breathing function
- Secondary survey examines range of motion, strength and coordination deficits
- Recognition of system interaction – e.g., neural symptoms may indicate circulatory issues
- Identification of primary vs secondary issues to determine treatment priorities
Intervention Criteria:
- Immediate response to vital sign changes including breathing rate, pulse, and level of consciousness
- Assessment of movement quality through observation of gait, balance and coordination
- Evaluation of system compensation such as altered movement patterns or breathing changes
- Implementation of appropriate protocols like RICER for musculoskeletal or recovery position for systemic issues
Management Strategies:
- System-specific responses such as RICER for muscular system or controlled breathing for respiratory system
- Holistic approach considering impact on all interconnected systems
- Prevention of secondary issues through appropriate positioning and movement restriction
- Appropriate referral pathways based on severity and systems involved
- Return to activity guidelines incorporating gradual system reintegration and monitoring
Show Worked Solution
Sample Answer
System Interrelationships:
- Nervous system initiates movement patterns through motor unit recruitment and coordinates timing through proprioceptive feedback
- Muscular system generates force through concentric, eccentric and isometric contractions responding to neural signals
- Skeletal system provides leverage points and joint articulation while protecting vital organs during movement
- Circulatory system increases blood flow to active muscles and removes metabolic waste products
- Respiratory system elevates breathing rate and depth to maintain oxygen delivery and CO2 removal
Movement Coordination:
- Systems work simultaneously – e.g., quadriceps contraction requires nerve signals, blood supply, oxygen delivery and skeletal stability
- Feedback loops maintain efficiency through proprioception and metabolic monitors
- Compensation occurs if one system fails – e.g., other muscle groups activate to maintain posture if primary movers fatigue
- Energy systems support continued function through ATP-PC, lactic acid and aerobic pathways
First Aid Assessment:
- Primary survey assesses DRSABCD with focus on circulation and breathing function
- Secondary survey examines range of motion, strength and coordination deficits
- Recognition of system interaction – e.g., neural symptoms may indicate circulatory issues
- Identification of primary vs secondary issues to determine treatment priorities
Intervention Criteria:
- Immediate response to vital sign changes including breathing rate, pulse, and level of consciousness
- Assessment of movement quality through observation of gait, balance and coordination
- Evaluation of system compensation such as altered movement patterns or breathing changes
- Implementation of appropriate protocols like RICER for musculoskeletal or recovery position for systemic issues
Management Strategies:
- System-specific responses such as RICER for muscular system or controlled breathing for respiratory system
- Holistic approach considering impact on all interconnected systems
- Prevention of secondary issues through appropriate positioning and movement restriction
- Appropriate referral pathways based on severity and systems involved
- Return to activity guidelines incorporating gradual system reintegration and monitoring