Reliability of ergonomic exposure assessment: comparing the Strain Index and the OCRA Checklist
Occupational ergonomists utilize a variety of observational methods to identify jobs that elevate workers' risk for developing work-related musculoskeletal disorders. Internationally, the Strain Index (SI) and the Occupational Repetitive Actions (OCRA) Checklist are two of the most popular upper extremity exposure assessments available. Both are founded on similar biomechanical and epidemiological principles, but their approach to quantification and estimation of risk factor magnitude is quite different. The purpose of the present study was to analyze the inter-method reliability of SI and OCRA ...
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