Analysis of the Body’s Posture and the Risk of Musculoskeletal Disorder inCleaning Service Workers Working atHeight

Cleaning service workers' jobis the type of jobthat requires physical strength in carrying out their duties, especially if the work area is at height, whichcan cause the risk of Musculoskeletal Disorder. The purpose of this researchis to analyze the body’s posture of the workers and provide a recommendation forthe level of risk of developing Musculoskeletal Disorder when working at height. This research was conducted using the Rapid Upper Limb Assessment (RULA) method, starting with an analysis of upper body posture including: Upper arm, forearm, wrist and handrotation, then analyzing the body parts of the trunk and legs. The research results showthat the body’s posture while working at height has a score of seven (7), which means it has a high level of Musculoskeletal Disorder risk. The conclusion from this study is that working at specificheight hasa high level of Musculoskeletal Disorder risk, and the risk can be reduced by providing ergonomics assistive device