| Summary: | 碩士 === 弘光科技大學 === 環境工程研究所 === 106 === Musculoskeletal Disorders is one of the most common reason of occupational disease claim. According to Occupational Safety and Health Act, amended on 3rd of July, 2013, Musculoskeletal Disorders have been included since then, which shows the importance of the impact on work-related Musculoskeletal Disorders and injuries. Amendments of Musculoskeletal Disorders Preventions have been also listed in the related regulations.
The purpose of this study was to investigate the status of musculoskeletal discomfort among workers working on various job scope in a construction project in Taichung. Assessing the work posture and the operating environment in which workers are required to perform their work processes to determine the association that may cause musculoskeletal injuries or discomfort. Using OWAS (Ovako Working Postures Analysis System) to analyze the work posture to find out the damage level, the injury level of personnel in the job falls on AC3 and AC2, each accounting for 80% and 20% respectively.
In accordance to the OWAS action level improvement measures in the table, AC3 suggested that "the posture is a significant hazard and needs to be improved as soon as possible." AC2 suggested that "the posture is slightly harmful and needs to be improved in the near future". With the assistance of (3D Static Strength Prediction Program, 3D SSPP) Human body simulation program, the human body working postures and finds the percentage of tolerability of each joint's force distribution in the analysis work, a higher percentage fall on Torso, Hip, Knee, Ankle and a smaller percentage fall on Wrist and Shoulder. In the lumbar spine (L4/L5) although it did not exceed NIOSH recommended value of 3500N force for lumbar vertebrae at the limit of motion, however more than 50% are in the 3000N force zone and had to pay special attention. The main and most important reason for the risk of harm is due to the repeated low bending posture and excessive load.
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