Evaluation On Difference Working Posture Using RULA Analysis

Ahmad, Mohd Aireen (2016) Evaluation On Difference Working Posture Using RULA Analysis. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

Ergonomic risk factor is the aspect of job or task that impose to a biomechanical stress on the worker. Improper ways of manual handling will cause a muscle fatigue and muscle discomfort at the workers. Manual handling activities at work can result in a wide range of musculoskeletal disorders (MSDs). The main objective of this study were to study the information of postural which affect the musculoskeletal disorder and discomfort in the workstation; To analyse current working posture of workers while performing various task by using Rapid Upper Limb Assessment (RULA) assessment tool; and To improve and assess working posture of the worker in the workstation. To assess the working posture contribute to muscle discomfort on body posture, related information were gathered from the questionnaire. The actual working posture was then captured in static photo. There are five real posture in this research will be modelling in the CATIA software in the ergonomic section of human activity analysis by using the manikin. The manikin has been simulated according to the working posture and the criticality of posture was shown on RULA analysis based the risk level of working posture before and after improvement of working posture through the system scoring range. This RULA analysis have provided the risks level of upper body regions that could potentially lead to Musculoskeletal Disorders (MSDS) harms. Based on the result, all the posture in action level 4 (red in colour with score 7) has been investigated and the changes required are executed immediately in the workstation. All the suggested for the improvement from the current body working posture and the working design has been evaluate using RULA analysis either the suggestion is improved or not in term of posture had been suggested. In conclusion, the prevalence of MSDS complaints among lay-up workers is due to awkward posture occurrence that was influenced by the incompatible workstation design.

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