What are the primary risk factors for back injuries in the workplace?

The correct choice is comprehensive, as it encompasses multiple factors known to contribute significantly to back injuries in the workplace. Bending, repetition, and forceful exertion are each recognized as individual risk factors, but together, they paint a more complete picture of the potential hazards employees may face.

Bending involves movements that can strain the back, especially if done improperly or repetitively. This action can place significant stress on the spinal discs and surrounding muscles. Repetition refers to performing the same movements repeatedly over time, leading to fatigue and wear on the back muscles, which can increase the likelihood of injury. Forceful exertion includes lifting heavy objects or applying significant force, which can lead to acute injuries or chronic back problems due to the excessive load placed on the spine.

Identifying all of these risk factors collectively is crucial for developing effective workplace safety protocols and injury prevention strategies. Thus, recognizing that each of these factors contributes to back injuries allows for a more holistic approach to workplace safety and ergonomics.