OCR Creative iMedia Practice Exam 2025 - Free iMedia Practice Questions and Study Guide

Adjusting chair height is a common method to alleviate back pain related to computer use because it promotes proper posture and alignment while sitting. When a chair is set to the appropriate height, it allows the user to keep their feet flat on the floor, with knees at a 90-degree angle, which helps reduce strain on the lower back. Proper chair height also ensures that the computer screen is at eye level, minimizing the likelihood of neck and upper back discomfort caused by looking up or down for prolonged periods.

In contrast, staying in one position can lead to muscle fatigue and increased strain on the back over time, which is counterproductive to alleviating pain. Using only a laptop can exacerbate back issues if the laptop is not placed at an appropriate height or if the user is hunched over it for extended periods. Limiting work to nighttime does not address the ergonomic factors related to computer use and has no direct impact on alleviating back pain; rather, it may simply shift the time of discomfort without resolving the underlying issues.