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711 Introduction to Ergonomics
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Engineering Controls

Engineering controls involve making changes to workstations, tools, or equipment used on the job.

Engineering controls involve making changes to tools.

These controls are preferred over all others because they make permanent changes that can totally eliminate hazards at the source. Although they may be more expensive to implement than other controls, their effect is often more significant.

Let's look at some of the various engineering control strategies that may be effectively used to eliminate hazards.

Workstation Design

Ergonomic changes in workstation design aim to adapt the work environment to individual employee physical needs and abilities.

This workstation is designed specifically for the employee, and she's happy!

Some common ergonomic changes in workstation design include:

  • Adjustable furniture: Chairs, desks, and other furniture that can be adjusted to fit the employee's height and body size can help reduce strain on the body and improve posture.
  • Proper lighting: Adequate quantity (illumination) and quality (frequency) of lighting can reduce eye strain and improve visibility, reducing the risk of accidents and improving productivity.
  • Noise reduction: Reducing noise levels in the workplace can help reduce stress and improve concentration.
  • Computer setup: Proper positioning of computer monitors, keyboards, and mice can help reduce eye strain, neck and shoulder pain, and carpal tunnel syndrome. Adjusting screens toward "warm" colors can reduce blue light can ease eye strain, dry eyes, headaches, difficulty focusing, and the possibility of age-related macular degeneration.
  • Eye protection: Glasses that reduce exposure to blue light may also reduce exposure.
  • Footrests: Footrests can help employees maintain proper posture and reduce pressure on the lower back.
  • Document holders: Document holders can help reduce neck and eye strain by keeping reference materials at eye level.
  • Wrist supports: Wrist supports can help reduce strain on the wrists and prevent carpal tunnel syndrome.
  • Anti-fatigue mats: Anti-fatigue mats can help reduce foot and leg fatigue for employees who stand for long periods.
  • Adequate storage: Adequate storage can help reduce clutter and keep work areas organized, reducing the risk of accidents and improving productivity.

Knowledge Check Choose the best answer for the question.

5-2. Which of the following control strategies includes making changes to workstations, tools, or equipment used on the job to prevent ergonomic injuries?