Relative Stress Index (RSI): Macro-Ergonomics Risk Assessment of jobs in textile industry

Macro-ergonomic risk assessment is one of risk assessment method that has been used for identification occupational hazard that human exposed with it in workplaces. One of macro-ergonomic risk assessment is relative stress index (RSI) which Able to identify risk factors associated with the incidence of occupational hazards in the work environment. The aim of present study was macro-ergonomic risk assessment with relative stress index in textile industry. This study was conducted base on Census method among 154 workers in textile industry in Isfahan that work in three shifts. Risk assessment based on relative stress index divided in three main sections; job description, checklist and RSI. For computation this method, different equations has been defended that by their computation was performing. The final values for the RSI are a scale between zero to 10 where zero implies on dangerous, insecure no efficient and number 10 indicated safe, secure and being efficient. ANOVA test showed that among six categories in this study, hand work and sensory in different shifts among textile industry had significant relationships with occupational hazard (P<0.05). Also posture with mean 6.19±0.11 and manual material handling with mean 9.14±0.41 had lowest and highest score, respectively Based on the findings of the study, the posture at work and hand work were the most influential factor in the incidence of Occupational hazards among workers in the textile industry. So keep a good posture and reducing the level of hand work activity during each shift can have a significant impact in reducing occupational hazards.