A controlled trial of an educational program to prevent low back injuries

Area of Science:

• Occupational Health
• Ergonomics
• Injury Prevention

Background:

• Low back injuries are a significant cause of workers' compensation claims and costs.
• Behavioral risk factors are recognized, leading to widespread use of employee education programs.
• The effectiveness of these educational programs for preventing low back injuries lacks rigorous evaluation.

Purpose of the Study:

• To evaluate the effectiveness of an educational program designed to prevent work-associated low back injuries.
• To determine if training in safe lifting and handling reduces injury rates, costs, and time off work.
• To assess the long-term benefits of such educational interventions in a large workforce.

Main Methods:

• A randomized, controlled trial involving approximately 4000 postal workers was conducted.
• The intervention group received a two-session "back school" program with reinforcement sessions, taught by physical therapists.
• Injured workers were re-randomized to receive post-injury training or no training to assess repeated injury rates.

Main Results:

• The educational program did not reduce the rate of low back injury, median cost per injury, or median time off work.
• No significant reduction was observed in related musculoskeletal injuries or the rate of repeated injuries after return to work.
• The training did, however, increase workers' knowledge of safe behaviors.

Conclusions:

• A large-scale randomized controlled trial found no long-term benefits from educational programs aimed at preventing work-associated low back injuries.
• Current educational interventions, similar to "back schools," appear ineffective in reducing injury incidence or associated costs.
• Further research may be needed to identify more effective strategies for low back injury prevention in the workplace.