Which of the following practices is least effective in preventing back injuries?

• A. Using mechanical lifts
• B. Improper lifting techniques
• C. Maintaining good posture
• D. Engaging core muscles

Answer: (B)

Improper lifting techniques are least effective in preventing back injuries because they can actually contribute to injury rather than prevent it. When individuals lift heavy objects without using the proper techniques, such as bending at the knees instead of at the waist or not keeping the object close to the body, they put undue stress on the back muscles and spine. This can lead to strains, sprains, or other serious back injuries.

On the other hand, practices like using mechanical lifts greatly reduce the physical strain on the body by allowing machines to handle the weight, while maintaining good posture during all physical activities helps distribute forces more evenly across the body. Engaging core muscles provides support to the spine during lifting and other movements. Collectively, these practices are designed to minimize the risk of injury, highlighting the inefficacy of improper techniques in injury prevention.