Slide 1Summary of MTM-2 DataSlide 3Job Analysis - Surveys #1 Body discomfort maps (Corlett,1976) Category ratio (CR-10) scale (Borg, 1982)Job Analysis - Surveys #2 Nordic Questionnaire (Kuorinka, 1987)Job Analysis - Surveys #2 Nordic Questionnaire con’tGross Posture Categorization #3OWAS Code = 2151 2 = bent back 1 = both arms below shoulders 5 = kneeling 1 = <10 kg loadOWAS – Acceptable LimitsSlide 10Comments on SurveysIE 5531IE 553 Engineering of Human WorkDr. Andris FreivaldsClass #18IE 5532Summary of MTM-2 DataIE 5533Ex: U-bolt assemblyIE 5534Job Analysis - Surveys #1 Body discomfort maps (Corlett,1976) Category ratio (CR-10) scale (Borg, 1982)IE 5535Job Analysis - Surveys #2Nordic Questionnaire (Kuorinka, 1987)IE 5536Job Analysis - Surveys #2Nordic Questionnaire con’tIE 5537Gross Posture Categorization #3•Owaco Working Posture Analysis System (OWAS, Karhu, 1977)•Developed at the Finnish Institute of Occupational Health in 1970s•For use in steel industry•Evaluation of posture at regular intervals•Four categories: back, upper limbs, lower limbs, force (<10, <20, >20 kg)IE 5538OWASCode = 2151 2 = bent back1 = both arms below shoulders5 = kneeling 1 = <10 kg loadIE 5539OWAS – Acceptable LimitsMeasure %time in each postureIE 55310Gross Posture Categorization #4(Keyserling, 1986)IE 55311Comments on Surveys•Should interpret with caution•Workers hesitant to be truthful•Anonymity may be critical•Pain tolerances vary•Proper design, validation critical•Fairly subjective (objective!)•Relatively non-quantitative•More covered in IE 552 (upper
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