Abstract
Evidence on the effectiveness of office ergonomics training to overcome workers' musculoskeletal pain and workplace stress is still insufficient. Therefore, the quasi-experimental study was conducted to investigate the effectiveness of the integration of three models in ergonomics training; environmental control (E), instructional design (I), and adult learning (A), in reducing musculoskeletal pain and workplace stress among office workers. The findings indicated a significant difference (p<0.05) in reducing musculoskeletal pain and workplace stress by implementing EIA ergonomics training compared to conventional ergonomics training. Therefore, implementing EIA ergonomics training and enhancing the office policy are recommended to sustain workers' well-being.