Ergonomic workstation reduces electrical activity of upper trapezius muscles, erector spinae muscles, and musculoskeletal complaints in agel fiber twisting process

Background: Humans' role in small industries as a source of labor is still dominant, mostly manual work. The research was conducted on workers agel fiber Yogyakarta. Manual work related to human strength and endurance. Ergonomic problems often arise labor, including neck pain, back leg pain called musculoskeletal disorders. Non-ergonomic working conditions also increase the electrical activity muscles. This study aims reduce muscle complaints by repairing an ergonomic workstation twisting process.Methods: experimental with 15 female subjects. muscles measured when under conventional (Period 1) station 2). using surface electromyography. Musculoskeletal were before after intervention repair Nordic Body Map Questionnaire. measurement data between two periods analyzed paired samples t-test Wilcoxon signed-rank test.Results: results showed decrease upper trapezius muscles' 35.46% erector spinae 22.43%. average decreased 23.77%, period 1 2.Conclusion: can muscles, rope.