Ergonomic tetrapod reduces the MSDs risk and productivity of steel-bar assembly for reinforcement concrete beams

The digitalization of construction has been carried out to meet the demands of the industrial era 4.0. However, there is still a lot of construction work that is preform manually, such as the steel-bar assembly for reinforcement concrete beams. Based on the 2019 ILO report, it can be seen that fatal work-related illnesses reached 86%, much higher than work accidents, which was 14%. Of the various fatal illnesses due to work, MSDs requires the highest health compensation costs, which reach 40%.  The previous study showed that the steel-bar assembly was done in awkward working posture (squatting, bending, twisting repeatedly) with high risk of MSDs (Rula score: 7) and needs improvement immediately. This research was conducted through experiment with pre-posttest control group design. The specific target of this research is to reduce the MSDs risk and increase the productivity by supporting the workers with the ergonomic tetrapod as the working table. The subjects were two groups of students at Civil Engineering Department Politeknik Negeri Bali, with 14 students in each group.  