Oregon Certified Nursing Assistant State Practice Exam

Which of the following statements is true of body mechanics?

1. Body mechanics help save energy and prevent injury

2. The narrower a person's base of support, the more stable the person is

3. Proper alignment of the body means that the two sides of the body should not line up

4. Twisting at the waist is the best way to maintain body alignment

The correct answer is: Body mechanics help save energy and prevent injury

Body mechanics involves the coordinated efforts of muscles, bones, and tendons to maintain balance, posture, and movement to prevent injury and conserve energy. The correct statement emphasizes that using proper body mechanics is vital for caregivers and healthcare workers, as it allows them to perform their duties more effectively while minimizing the risk of strain on their bodies. When body mechanics are applied correctly, it can result in a more stable and efficient way to move, which is essential in a healthcare setting where caregivers often lift, transfer, or move patients. This practice not only protects the caregiver from injuries, such as back strain but also helps ensure the safety of the patients they are caring for. In contrast, other statements about body mechanics illustrate misunderstandings of fundamental concepts. For instance, having a wider base of support typically enhances stability; proper body alignment means both sides should ideally line up for balance; and twisting at the waist often leads to potential injury rather than maintaining alignment. Understanding these principles is crucial for utilizing body mechanics effectively in all care interactions.