Salāmat-i kār-i Īrān (Oct 2005)
Evaluation of the Body Posture in Mahyaman Industry by OWAS
Abstract
Background and Aims:Holding body in a special posture and holding load simultanausly is astatic work . These postures are the biggest and most common problems in the work places.Work related musckloskeletal disorders (WRMSDs) are major occupational health problems inindustrial countries that are caused by a bad posture . One of the newest and usefull posture codingsystems that's used in a steel plant in finland for the first time is OWAS (Ovaco Working postureAnalysis System ).Method :This is a cross sectional study that is done in Mahyaman plant , in which 200 worker'spostures are evaluated and coding by OWAS method directly . Firstly , we prepared OWAS formsand went to that plant , then coding worker's postures and filled OWAS forms . Finally , we analyzecollected datas by OWAS software and the charts are prepared bye excel soft ware .Results :In 32 work phases (12.5%) worker's back had bending and twisting posture and in 7(2.7%) work phases they work with a bended knee .In 184 work phases (72.4%) , workers had a normal position and there is not any action needed butin 54 (21.2%) they had a stressful postures , so action is necessary soon .Conclusion: Bad postures cause musckloskeletal disorders , consequently low productivity inworkplaces .In this study we find out that 184 (72.4%) , 54 (21.2%) , 7 (2.7%) and 9 (3.5%) workers ,subsequently are paced in category 1,2,3 and 4 .It's good to point out that hazardouse postures are related to cooler coloring , 3 meter scissor andcleaning units in this factory .
