SmarterEd

Aussie Maths & Science Teachers: Save your time with SmarterEd

HMS, BM EQ-Bank 47

Explain how balance and stability principles contribute to safe lifting technique.  (4 marks)

Show Answers Only

Sample Answer

  • Base of support width affects stability
  • Center of gravity position impacts control
  • Weight distribution influences joint loading
  • Movement speed affects balance maintenance
  • Postural muscle engagement maintains stability
Show Worked Solution

Sample Answer

  • Base of support width affects stability
  • Center of gravity position impacts control
  • Weight distribution influences joint loading
  • Movement speed affects balance maintenance
  • Postural muscle engagement maintains stability

HMS, BM EQ-Bank 46

Evaluate the importance of correct joint alignment in the prevention of injury during weight-bearing activities.  (5 marks)

Show Answers Only

Sample Answer

Even force distribution through joints:

  • Correct alignment ensures forces are distributed evenly across joint surfaces rather than concentrated in one area, minimising stress on articular cartilage.

Reduced stress on ligaments/tendons:

  • Proper alignment keeps ligaments and tendons working within their normal anatomical range, preventing overstretching and uneven loading.

Optimal muscle length-tension relationships:

  • Aligned joints allow muscles to work at their ideal length, providing efficient movement control and joint support.

Maintenance of normal movement patterns:

  • Correct alignment enables smooth joint motion along natural anatomical pathways, promoting efficient movement patterns.

Prevention of compensatory movements:

  • Proper joint positioning prevents other body parts from taking on excessive load to compensate for poor alignment.
Show Worked Solution

Sample Answer

Even force distribution through joints:

  • Correct alignment ensures forces are distributed evenly across joint surfaces rather than concentrated in one area, minimising stress on articular cartilage.

Reduced stress on ligaments/tendons:

  • Proper alignment keeps ligaments and tendons working within their normal anatomical range, preventing overstretching and uneven loading.

Optimal muscle length-tension relationships:

  • Aligned joints allow muscles to work at their ideal length, providing efficient movement control and joint support.

Maintenance of normal movement patterns:

  • Correct alignment enables smooth joint motion along natural anatomical pathways, promoting efficient movement patterns.

Prevention of compensatory movements:

  • Proper joint positioning prevents other body parts from taking on excessive load to compensate for poor alignment.

HMS, BM EQ-Bank 43

Analyse how biomechanical principles influence the safe execution of a landing from a jump.  (4 marks)

Show Answers Only

Sample Answer

  • Force absorption through muscle eccentric contraction
  • Joint flexion increases time of force absorption
  • Wider base of support increases stability
  • Center of gravity lowering improves balance
  • Alignment of joints reduces injury risk
Show Worked Solution

Sample Answer

  • Force absorption through muscle eccentric contraction
  • Joint flexion increases time of force absorption
  • Wider base of support increases stability
  • Center of gravity lowering improves balance
  • Alignment of joints reduces injury risk

HMS, BM EQ-Bank 42

Explain the relationship between force and safe movement when performing a pushing action.  (4 marks)

Show Answers Only

Sample Answer

  • Force should be applied in line with movement direction
  • Even distribution through joints reduces injury risk
  • Engagement of correct muscle groups spreads load
  • Stable base allows efficient force transfer
  • Body position affects force application safety
Show Worked Solution

Sample Answer

  • Force should be applied in line with movement direction
  • Even distribution through joints reduces injury risk
  • Engagement of correct muscle groups spreads load
  • Stable base allows efficient force transfer
  • Body position affects force application safety

HMS, BM EQ-Bank 40 MC

When lifting a heavy box, which force application ensures safest movement?

  1. Unilateral force through spine
  2. Rapid jerking motion
  3. Force directed through legs
  4. Twisted lifting position
Show Answers Only

\(C\)

Show Worked Solution

Consider Option C: Force directed through legs

  • Using leg muscles with straight back distributes force safely

Other Options:

  • A: Dangerous spinal loading
  • B: Unsafe rapid movement
  • D: Unsafe spinal position

\(\Rightarrow C\)