OHST Workplace Ergonomics & Human Factors Flashcards

What is the primary goal of ergonomics in occupational health and safety?

Answer: Fitting the work environment to the worker to reduce injury risk

Ergonomics aims to fit the work environment, tools, and tasks to the worker's physical and cognitive capabilities to reduce the risk of injury and improve efficiency.

What does MSD stand for in the context of workplace ergonomics?

Answer: Musculoskeletal Disorder

MSD stands for Musculoskeletal Disorder, which includes injuries to muscles, tendons, ligaments, nerves, and joints often caused by ergonomic risk factors.

Which of the following is a primary ergonomic risk factor for musculoskeletal disorders?

Answer: Repetitive motion combined with forceful exertion

Repetitive motion combined with forceful exertion is a well-established ergonomic risk factor that significantly increases the likelihood of developing musculoskeletal disorders.

What is a 'neutral posture' in ergonomics?

Answer: A body position where joints are naturally aligned and muscles experience minimal stress

A neutral posture is one in which the body's joints are in their natural, unforced position, minimizing stress on muscles, tendons, and joints.

Which approach is most effective for controlling ergonomic hazards?

Answer: Applying the hierarchy of controls, starting with engineering controls

The hierarchy of controls should be applied to ergonomic hazards, with engineering controls — such as redesigning the task or workstation — being the most effective.

What is 'contact stress' as an ergonomic risk factor?

Answer: Pressure on soft tissue from contact with a hard or sharp edge

Contact stress occurs when soft tissue such as the palm, wrist, or forearm is pressed against a hard, sharp, or narrow edge, concentrating force and potentially causing injury.