Home Science · Ergonomics and Work Simplification
Assertion (A): Leg muscles should be used for lifting heavy loads off the ground instead of back muscles. Reason (R): Back muscles are weaker and more prone to injury compared to the larger muscles of the legs.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Both A and R are incorrect
- 2A is incorrect, but R is correct
- 3A is correct, but R is incorrect
- 4Both A and R are correct✓
Correct answer
Both A and R are correct
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