To prevent personal injuries, which group of muscles should be used when lowering and lifting ladders?

To prevent personal injuries, which group of muscles should be used when lowering and lifting ladders?

• A. Leg
• B. Arm
• C. Back
• D. Chest

Answer: (A)

Using the legs as the primary source of strength when lifting or lowering a ladder protects the spine and reduces the risk of personal injuries. The leg muscles—especially the quadriceps, hamstrings, and glutes—are built to handle heavy loads and smooth, controlled movements. By bending at the knees and hips and keeping the back straight, you transfer the load into your legs rather than pulling with the back or arms. Keep the ladder close to your body, feet shoulder-width apart for balance, and brace the core as you gradually straighten the legs to lift or flex them to lower. This method lets the legs absorb the effort so the spine isn’t forced into awkward angles or sudden pulls, which is where back injuries commonly occur. Using the arms or the back to do the majority of the lifting increases fatigue and risk of strain and loss of control, while the chest muscles aren’t suited to generating the needed force for this task.

Using the legs as the primary source of strength when lifting or lowering a ladder protects the spine and reduces the risk of personal injuries. The leg muscles—especially the quadriceps, hamstrings, and glutes—are built to handle heavy loads and smooth, controlled movements. By bending at the knees and hips and keeping the back straight, you transfer the load into your legs rather than pulling with the back or arms. Keep the ladder close to your body, feet shoulder-width apart for balance, and brace the core as you gradually straighten the legs to lift or flex them to lower. This method lets the legs absorb the effort so the spine isn’t forced into awkward angles or sudden pulls, which is where back injuries commonly occur. Using the arms or the back to do the majority of the lifting increases fatigue and risk of strain and loss of control, while the chest muscles aren’t suited to generating the needed force for this task.