Your textbook’s author spends some pages discussing “false assumptions about manual handling safety” in addressing the question, “Why is training in lifting technique so often ineffective?”

Which of the following is generally an ineffective guideline for safer lifting?

Question

Your textbook’s author spends some pages discussing “false assumptions about manual handling safety” in addressing the question, “Why is training in lifting technique so often ineffective?”

Which of the following is generally an ineffective guideline for safer lifting?

BlackTom AI · Accepted Answer

The question asks us to evaluate which guideline is generally an ineffective guideline for safer lifting. We will assess each option in turn to understand why it may or may not promote safer lifting practices.

Option 1: "Lift with your knees/legs, not with your back". This statement is commonly taught as a core lifting technique, but the prompt indicates false assumptions that can undermine safety training. If taken as a universal rule without nuance, it can be misleading: merely telling someone to use the legs does not guarantee a neutral spine, proper load orientation, or avoidance of twisting. In some cases, people may still strain their back if they bend awkwardly, twist, or fail to engage core muscles. Therefore, framed as a blanket guideline, it can be ineffective or even harmful because it overemphasizes one aspect (knee use) while neglecting others essential for safe lifting, such as maintaining a neutral spine and minimizing lumbar moment.

Option 2: "Avoid twisting while lifting". Avoiding twisting is a well-supported safety principle. Twisting while lifting can increase spinal loading and the risk of injury, so this guideline generally contributes to safer practices. Explaining why it’s not the ineffective choice helps reinforce why it’s recommended.

Option 3: "Minimize the load moment on the lumbar spine". Reducing the moment (torque) around the lumbar spine is a fundamental ergonomic objective. Techniques that lower the moment arm—such as keeping loads close to the body, using hips and legs for transfer, and avoiding lumbar flexion—are consistent with safe lifting strategies. This is clearly an effective guideline when implemented properly.

Option 4: "Maintain a neutral spine shape (normal lumbar lordosis)". Maintaining a neutral spine aligns with widely taught safe lifting practices. Keeping the spine in its neutral posture reduces excessive bending and shear forces on the lumbar region. This guideline is generally regarded as protective against back injuries during lifting, making it an effective guideline.

In summary, Options 2, 3, and 4 describe established, generally effective strategies for safer lifting, addressing twisting, lumbar loading, and spinal posture respectively. Option 1, while containing an element of truth in encouraging leg use, can be implemented in a way that overlooks other critical factors (spinal alignment, core stabilization, load distance, and sequencing). When presented as a stand-alone, blanket directive, it can be an ineffective or incomplete guideline for true lifting safety, which is why it stands out as the generally ineffective choice among these options.

ISE 3600 SP2025 (10660) MMH basics knowledge check 1.1

Your textbook’s author spends some pages discussing “false assumptions about manual handling safety” in addressing the question, “Why is training in lifting technique so often ineffective?” Which of the following is generally an ineffective guideline for safer lifting?

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