Ergonomic behaviour of learners in a digitally driven school environment: Modification using an ergonomic...

Area of Science:

• Ergonomics
• Adolescent Health
• Musculoskeletal Disorders

Background:

• Increasing computer use among adolescents correlates with rising musculoskeletal pain and postural issues.
• Sedentary, technology-driven lifestyles contribute to poor posture, repetitive strain injuries, and movement dysfunction.

Purpose of the Study:

• To evaluate the impact of a computer-related ergonomic intervention on adolescent posture and behavior in a school setting.
• To assess the effectiveness and sustainability of ergonomic interventions for young computer users.

Main Methods:

• A controlled trial involving 127 Grade 8 learners from two private schools in Johannesburg.
• Intervention group received a participatory educational program; control group did not.
• Posture and ergonomic behavior assessed using the Rapid Upper Limb Assessment (RULA) at baseline, 3, and 6 months.

Main Results:

• Significant reduction in participants with high RULA action levels (AL 3 and 4) in the intervention group at 6 months (p < 0.001).
• Control group showed worsening RULA scores over the study period.
• Intervention group demonstrated significant improvement in postural positions post-intervention (p < 0.001).

Conclusions:

• The ergonomic intervention proved effective and sustainable in improving adolescent posture and ergonomic behavior over a 6-month period.
• Early identification and intervention of poor ergonomics in schools can positively impact postural health in adolescents.