NCLEX-PN® ExaminationBasic Care and ComfortMedium
An LPN is teaching a client about proper body mechanics for lifting heavy objects at home. Which instruction is most crucial for preventing musculoskeletal injury?
- ATwist your torso to change direction.
- BBend at the waist to pick up objects.
- CKeep the object away from your body.
- DLift with your legs, not your back.
Show answer & explanationAnswer & explanation
Correct answer: D. Lift with your legs, not your back.
Lifting with the legs, by bending at the knees and hips while keeping the back straight, is the most crucial instruction for preventing musculoskeletal injury because it utilizes stronger leg muscles and reduces strain on the spine.
Why the other options are wrong
- A. Twisting the torso, especially while lifting, compresses and torques the spinal discs, greatly increasing the risk of injury.
- B. Bending at the waist puts excessive strain on the lower back and increases the risk of injury.
- C. Keeping the object away from the body increases the lever arm and places more stress on the back muscles.
Proper Body Mechanics
Proper body mechanics involve using the body in an efficient and safe way to move or lift objects, minimizing strain on muscles and joints to prevent injury.
- Use leg muscles, not back.
- Keep objects close to body.
- Maintain a wide base of support.
Memory trick: Lift with Legs, Not Lumber.