Back Pain Back Pain Prevention and Ergonomics 2

Question 1

What is the recommended monitor height for ergonomic computer workstations to prevent back and neck strain?

Accepted Answer

At or slightly below eye level, arm's length away

Answer

The monitor should be at or slightly below eye level and approximately arm's length away to allow a neutral head and spine position.

Question 2

Which workplace modification most effectively reduces back pain in workers who stand for long periods?

Accepted Answer

Using anti-fatigue mats and alternating foot positions

Answer

Anti-fatigue mats cushion the feet and encourage subtle micro-movements, reducing static muscle loading and fatigue in the legs and back.

Question 3

Which body mass index (BMI) category is associated with the highest risk for chronic low back pain?

Accepted Answer

Obese (BMI ≥30)

Answer

Obesity (BMI ≥30) increases lumbar compressive forces, promotes pro-inflammatory adipokines, and is associated with higher rates of chronic LBP and disc degeneration.

Question 4

How frequently should sedentary workers take movement breaks to reduce back pain risk?

Accepted Answer

Every 30-60 minutes

Answer

Evidence supports taking brief movement breaks every 30-60 minutes to interrupt prolonged sitting, redistribute spinal loads, and improve disc nutrition.

Question 5

Smoking is a recognized risk factor for back pain primarily because it causes which spinal change?

Accepted Answer

Reduced disc nutrition and accelerated degeneration via microvascular changes

Answer

Smoking impairs microvascular supply to vertebral endplates, reducing disc nutrition and accelerating degeneration while also impairing healing.

Back Pain Practice Test

Back Pain Practice Test

Back Pain Back Pain Prevention and Ergonomics 2