HMS, BM EQ-Bank 49

Explain how TWO biomechanical principles can be applied to improve movement efficiency for a person using a prosthetic leg. (4 marks)

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Sample Answer

Center of gravity positioning:

Needs to be maintained over base of support
Reduces energy expenditure in maintaining balance
Allows for smoother progression of movement

Lever principles:

Prosthetic foot placement affects leverage
Efficient force transfer through prosthetic limb
Reduces energy needed for forward progression

Show Worked Solution

Sample Answer

Center of gravity positioning:

Needs to be maintained over base of support
Reduces energy expenditure in maintaining balance
Allows for smoother progression of movement

Lever principles:

Prosthetic foot placement affects leverage
Efficient force transfer through prosthetic limb
Reduces energy needed for forward progression