The proper method for lifting is to keep the back straight, spread the feet comfortably and lift with the _______ muscles.

• A. leg
• B. back
• C. arm
• D. abdominal

Answer: (A)

Lifting safely relies on using the leg muscles as the primary engine. The large muscle groups in the legs—quadriceps, hamstrings, and glutes—can generate the most power and transfer the load through the knees and hips, which keeps the spine protected. Start with a wide, stable stance, bend at the knees and hips while keeping the back straight, and then rise by straightening the legs while keeping the object close to your body. The abdominal muscles should brace the core to stabilize the torso, but they aren’t the main lifting force, and the back isn’t the primary source of lift; using the back too much increases the risk of injury. Arms can support the object, but they don’t provide the lifting power, so the effort should come from the legs for a safe, efficient lift.