The comparison of ergonomics postures assessment methods in rubber sheet production

The aim of this work is to study and compare the postural assessment by using Rapid Upper Limb Assessment (RULA), REBA (Rapid Entire Body Assessment) and Ovako Working Analysis System (OWAS) methods. According to the working process, 25 operators (18 males and 7 females from the north-eastern of Thailand) working in 9 processes, it can be seen that most working postures were repetitive and the workstation caused uncomfortable working conditions. The first step of the research is to record working postures by camera and then the hazardous postures were assessed by RULA, REBA and OWAS. The results of the study showed that working postures in rubber sheet production contained high RULA, REBA and OWAS scores.